PMCF Study on EDOF (Isopure) vs Monofocal (Micropure) IOL (PHY2001)

September 29, 2023 updated by: Beaver-Visitec International, Inc.

Multicentric Post-Market Clinical Follow-up (PMCF) Investigation to Determine Safety and Efficacy of a Hydrophobic EDOF Intraocular Lens (IOL) in Comparison to a Monofocal IOL

Multicenter, prospective, randomised, controlled, single-blind post-market clinical follow-up (PMCF) study to compare the clinical outcomes of an enhanced depth of focus (EDOF) IOL with the outcomes obtained with a monofocal lens. Implantation of the IOLs is bilaterally.

Study Overview

Detailed Description

This is a multicenter, prospective, randomised, controlled, single-blind post-market clinical follow-up (PMCF) study whereby patients undergoing routine cataract surgery will have bilateral implantation of Enhanced Depth of Focus intraocular lenses (Isopure 1.2.3.) or monofocal lenses (Micropure 1.2.3.). The patients will be randomized in a 1:1 ratio to receive the study or control lenses. Both IOLs, investigational device and control device, are CE approved and commercially available in the countries this clinical investigation is being carried out. The investigational device and all study products, including the devices used for the study examinations, will be used within the intended use specifications from the manufacturer. In addition, no invasive or other burdening examinations will occur for the patient.

The study will be carried out in up to five clinical centers in Europe and Asia.

The device under investigation (Isopure 1.2.3.) is a hydrophobic, glistening-free, acrylic EDOF intraocular lens (IOL) manufactured by the sponsor of this study, PhysIOL sa/nv. The control lens is the parent IOL, belonging to the same IOL family of this manufacturer. It is a hydrophobic, glistening-free, acrylic monofocal IOL (Micropure 1.2.3.). The IOLs will be implanted as part of the routine cataract surgery on patients suffering from cataract development.

Subjects participating in the trial will attend a total of maximum 11 study visits (1 preoperative, 1 or 2 operative and up to 8 postoperative) over a period of 12 months. If local requirements allow, preoperative and operative visit can be done on the same day. Subjects would have the option for unscheduled visits if required medically.

Primary endpoint data will be collected at the 120-180 days follow up visit. Secondary endpoint data will be collected at the 330-420 days follow up visit. Data interim analyses will be done after the last patient finished the 120-180 days postoperative examination to support the study publication plan.

Study Type

Interventional

Enrollment (Estimated)

244

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Vienna, Austria, 1140
        • Hanusch Krankenhaus
      • Zlín, Czechia, 76001
        • Gemini Eye Clinic
      • Ahaus, Germany, 48683
        • Augen-Zentrum-Nordwest
      • Heidelberg, Germany, 69120
        • Universitäts-Augenklinik Heidelberg
      • Leipzig, Germany, 04107
        • Smile Eyes Augen + Laserzentrum
      • Rheine, Germany, 48429
        • Augentagesklinik Rheine
      • Kildare, Ireland, W91 W535
        • Institute of Eye Surgery - Clane
      • Waterford, Ireland, X91 DH9W
        • Institute of Eye Surgery
      • Makati City, Philippines, 1200
        • Asian Eye Institute
      • Alicante, Spain, 03016
        • Oftalvist Alicante
      • Madrid, Spain, 28040
        • Hospital Clinico San Carlos
      • Madrid, Spain, 28003
        • Miranza IOA Madrid

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

45 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Cataractous eyes with no comorbidity;
  • Calculated IOL power is within the range of the study IOLs;
  • Male or female adults ages 45 years or older on the day of screening who have cataract(s) in one or both eyes;
  • Regular corneal astigmatism ≤1.0 D (measured by an automatic keratometer)
  • Clear intraocular media other than cataract;
  • Availability, willingness and sufficient cognitive awareness to comply with examination procedures;
  • Signed informed consent.

Exclusion Criteria:

  • Age of patient < 45 years;
  • Regular corneal astigmatism >1.0 dioptres (measured by an automatic keratometer)
  • Irregular astigmatism;
  • Difficulty for cooperation (distance from their home, general health conditions);
  • Subjects with diagnosed degenerative visual disorders (e.g. macular degeneration or other retinal or optic disorders) that are predicted to cause future acuity losses to a level of 20/30 or worse;
  • Subjects with AMD suspicious eyes as determined by OCT examination;
  • Subjects who may be expected to require retinal laser treatment during the course of the study or at a greater risk of developing cystoid macular edema;
  • Previous intraocular or corneal surgery;
  • Traumatic cataract;
  • History or presence of macular edema;
  • Instability of keratometry or biometry measurements;
  • Ocular hypertension or glaucoma;
  • Pupil abnormalities (non-reactive, tonic pupils, abnormally shaped pupils or pupils that do not dilate under mesopic / scotopic conditions);
  • Expected complicated surgery;
  • Significant dry eye.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: IOL implantation experimental
Experimental arm: Enhanced depth of focus (EDOF) intraocular lens.
Implantation of trifocal IOL POD F GF consisting of light distribution order: far > intermediate > near
Active Comparator: IOL implantation active comparator
Comparator arm: Monofocal intraocular lens.
Implantation of trifocal IOL POD F GF consisting of light distribution order: far > near > intermediate

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
monocular Best Corrected Distance Visual Acuity (CDVA) under photopic light conditions on the first implanted eye.
Time Frame: 6 months (120-180 days) postoperative
No statistically significant difference between the two study groups on monocular CDVA at 4-6 months follow up visit. A significance level of 0.05 or lower (p < 0.05) will be considered statistically significant. CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018.
6 months (120-180 days) postoperative

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Manifested refraction
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
The manifested refraction is measured by means of a phoropter. The data contains values for sphere, cylinder and axis of cylinder according to ISO 11979-7:2018. This data will also be used to calculate the manifested refractive spherical equivalent (MRSE)
Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Uncorrected Distance Visual Acuity (UDVA) under photopic light conditions
Time Frame: Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
monocular UDVA is measured with ETDRS charts placed in 4m distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Distance Visual Acuity (UDVA) under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular UDVA is measured with ETDRS charts placed in 4m distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Corrected Distance Visual Acuity (CDVA) under photopic light conditions
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Corrected Distance Visual Acuity (CDVA) under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Corrected Distance Visual Acuity (low contrast CDVA) using low contrast (10%) optotypes under photopic light conditions
Time Frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular CDVA using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: [background - optotype]/background).
1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular Uncorrected Intermediate Visual Acuity at 80cm (UIVA@80cm) under photopic light condition
Time Frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular UIVA@80cm is measured with ETDRS charts placed in 80cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Intermediate Visual Acuity at 80cm (UIVA@80cm) under photopic light condition
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular UIVA@80cm is measured with ETDRS charts placed in 80cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Intermediate Visual Acuity at 80cm (DCIVA@80cm) under photopic light conditions
Time Frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular DCIVA@80cm is measured with ETDRS charts placed in 80cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Distance Corrected Intermediate Visual Acuity at 80cm (DCIVA@80cm) under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular DCIVA@80cm is measured with ETDRS charts placed in 80cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Distance Visual Acuity at 80cm (low contrast DCIVA@80cm) using low contrast (10%) optotypes under photopic light conditions
Time Frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular DCIVA@80cm using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: [background - optotype]/background).
1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular Uncorrected Intermediate Visual Acuity at 66cm (UIVA@66cm) under photopic light condition
Time Frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular UIVA@66cm is measured with ETDRS charts placed in 66cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Intermediate Visual Acuity at 66cm (UIVA@66cm) under photopic light condition
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular UIVA@66cm is measured with ETDRS charts placed in 66cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Intermediate Visual Acuity at 66cm (DCIVA@66cm) under photopic light conditions
Time Frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular DCIVA@66cm is measured with ETDRS charts placed in 66cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Distance Corrected Intermediate Visual Acuity at 66cm (DCIVA@66cm) under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular DCIVA@66cm is measured with ETDRS charts placed in 66cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Distance Visual Acuity at 66cm (low contrast DCIVA@66cm) using low contrast (10%) optotypes under photopic light conditions
Time Frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular DCIVA@80cm using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: [background - optotype]/background).
1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Binocular Distance Corrected Near Visual Acuity at 40cm (DCNVA) under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular DCNVA is measured with ETDRS charts placed in 40cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Defocus Curve
Time Frame: 1 month (30-60 days) postoperative
To assess the visual acuity for different distances, defocus curves under photopic light conditions are measured. This test is performed with best distance corrected refraction and spherical additions ranging from -2.5 D to +1.5 D in 0.5 D steps. In addition the following vergence values are measured: -0.25 D and +0.25 D. This examination is performed monocularly.
1 month (30-60 days) postoperative
Binocular Defocus Curve
Time Frame: 6 months (120-180 days) postoperative
To assess the visual acuity for different distances, defocus curves under photopic light conditions are measured. This test is performed with best distance corrected refraction and spherical additions ranging from -2.5 D to +1.5 D in 0.5 D steps. In addition the following vergence values are measured: -0.25 D and +0.25 D. This examination is performed binocularly.
6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under photopic light conditions
Time Frame: 6 months (120-180 days) postoperative
Contrast Sensitivity under photopic light conditions using the standardized contrast sensitivity device Clinical Trial Suite (M&S Technologies). This examination is performed binocularly.
6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under mesopic light conditions
Time Frame: 6 months (120-180 days) postoperative
Contrast Sensitivity under mesopic light conditions using the standardized contrast sensitivity device Clinical Trial Suite (M&S Technologies). This examination is performed binocularly.
6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under mesopic light conditions and using a glare source
Time Frame: 6 months (120-180 days) postoperative
Contrast Sensitivity under mesopic light conditions with a glare source using the standardized contrast sensitivity device Clinical Trial Suite (M&S Technologies). This examination is performed binocularly.
6 months (120-180 days) postoperative
Halo and Glare Simulator
Time Frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
A Halo and Glare simulator software (Eyeland Design Network GmbH, Germany) will be used to assess the subjective perception of photic phenomena. The patients will be asked to adjust the halo and glare level in a simulated image to the amount they perceive such photic phenomena. This test is performed pre- and postoperatively. The preoperative outcomes deal as a baseline measurement.
preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Quality of Vision questionnaire [McAlinden et al, 2010]
Time Frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

To assess the subjective perception of disturbances by photic phenomena, the validated and verified Quality of Vision (QoV) questionnaire will be used.

This questionnaire is a linear-scaled 30-item instrument and is designed with 10 symptoms rated in each of three scales (frequency, severity, and bothersome).

The QoV Questionnaire provides a QoV score in terms of symptom frequency, severity, and bothersome [McAlinden et al, 2010].

preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Catquest-9SF 2011 questionnaire [Lundström et al, 2009]
Time Frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
To assess if difficulties in daily life occur due to impaired sight. This questionnaire is 9-item Rasch-scaled instrument to assess subjective perception of visual impairment after surgery [Lundström et al, 2009].
preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Patient-Reported Spectacle Independence Questionnaire (PRSIQ) [Morlock et al, 2017]
Time Frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
The PRSIQ is a patient-reported measure assessing spectacle independence following cataract surgery. The analyses conducted provide evidence for the use of the PRSIQ total score as a measure of spectacle independence [Morlock et al, 2017].
preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Aberrometry
Time Frame: preoperative, 6 months (120-180 days) postoperative
Aberrometry outcomes are measured with a standard aberrometer. The following values will be evaluated in this study: Spherical aberrations, high order aberrations, lens tilt.
preoperative, 6 months (120-180 days) postoperative
Pupil Size under photopic light conditions
Time Frame: preoperative, 6 months (120-180 days) postoperative

Photopic pupil diameters are measured with a precision of at least +/-0.5 mm. For the photopic pupil diameters, eye illumination should be identical to that used for photopic contrast sensitivity testing. It is required that pupil measurements be made with an infrared pupillometer / CCD camera. Pupil measurements should only be made after the eye has had time to fully adapt to the testing conditions (at least 10 minutes).

The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

preoperative, 6 months (120-180 days) postoperative
Pupil Size under mesopic light conditions
Time Frame: preoperative, 6 months (120-180 days) postoperative

Mesopic pupil diameters are measured with a precision of at least +/-0.5 mm. For the mesopic pupil diameters, eye illumination should be identical to that used for mesopic contrast sensitivity testing. It is required that pupil measurements be made with an infrared pupillometer / CCD camera. Pupil measurements should only be made after the eye has had time to fully adapt to the testing conditions (at least 10 minutes).

The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

preoperative, 6 months (120-180 days) postoperative
Fundus examination with dilated pupil
Time Frame: preoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

• Fundus

preoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Corneal status
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

• Corneal Status

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Signs of inflammation
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

  • Signs of inflammation
  • Anterior chamber cells,
  • Anterior chamber flare,
  • Cystoid macular oedema,
  • Hypopyon, and
  • Endophthalmitis.
Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Pupillary block
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- Pupillary block.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Retinal detachment
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- Retinal detachment.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Status of anterior and posterior capsule
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- Status of anterior and posterior capsule.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL decentration
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- IOL decentration.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL tilt
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- IOL tilt.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL discoloration
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- IOL discoloration.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL opacity
Time Frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.

With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp:

- IOL opacity.

Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Keratometry
Time Frame: Preoperative
Keratometric measurements are performed to calculate the required IOL power. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Preoperative
Intraocular pressure (IOP) measurement
Time Frame: Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
The IOP will be measured with non-contact tonometer as part of the routine follow up examinations. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
IOL power and target refraction
Time Frame: Operative (day of surgery)
The parameter of the implanted IOL must be recorded as well as the target refraction given by the IOL calculator. This parameter is needed to calculate the accuracy of achieving the target refraction. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Operative (day of surgery)
Fundus OCT
Time Frame: Preoperative, 1 month (30-60 days) postoperative
An OCT (optical coherence tomography) image will be taken at the preoperative visit to identify AMD suspicious eyes that need to be excluded from this study. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Preoperative, 1 month (30-60 days) postoperative

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Principal Investigator: Florian Kretz, MD, Augentagesklinik Rheine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 11, 2020

Primary Completion (Actual)

February 23, 2023

Study Completion (Estimated)

February 1, 2024

Study Registration Dates

First Submitted

January 28, 2020

First Submitted That Met QC Criteria

January 30, 2020

First Posted (Actual)

January 31, 2020

Study Record Updates

Last Update Posted (Actual)

October 2, 2023

Last Update Submitted That Met QC Criteria

September 29, 2023

Last Verified

September 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PHY2001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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