- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04617080
Safety and Efficacy of Different Add Powers With a New Presbyopic Lasik Treatment Algorithm
Prospective Clinical Study to Evaluate the Safety and Efficacy of Different Add Powers With a New Presbyopic Lasik Treatment Algorithm
This is a prospective, comparative, randomized, controlled, open-label, single-surgeon, single-center PMCF clinical study whereby presbyopic patients undergoing refractive surgery will receive a SUPRACOR treatment for the correction in the non-dominant eye and a PROSCAN refractive treatment in the dominant eye to correct for ametropia.
The participants will be randomized to either a SUPRACOR regular (100%) or SUPRACOR strong (130%) treatment with a 1:1 ratio.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Makati City, Philippines
- Asian Eye Institute
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- presbyopia
- willingness for a refractive presbyopia correction
- signed informed consent form
Exclusion Criteria:
- ocular comorbidity
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Active Comparator: SUPRACOR Regular
|
SUPRACOR algorithm with regular (100%) ablation profile.
SUPRACOR is a presbyopic algorithm that consists of a pre-calculated pulse pattern combined to the refractive pattern to combine near, intermediate and distance vision correction.
|
|
Experimental: SUPRACOR Strong
|
SUPRACOR algorithm with strong (130%) ablation profile.
SUPRACOR is a presbyopic algorithm that consists of a pre-calculated pulse pattern combined to the refractive pattern to combine near, intermediate and distance vision correction.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Binocular Uncorrected Distance Visual Acuity (UDVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
|
3 months follow up
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Monocular Uncorrected Distance Visual Acuity (UDVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
|
3 months follow up
|
|
Monocular Corrected Distance Visual Acuity (CDVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
Corrected means spectacle corrected.
|
3 months follow up
|
|
Binocular Corrected Distance Visual Acuity (CDVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
Corrected means spectacle corrected.
|
3 months follow up
|
|
Monocular Uncorrected Intermediate Visual Acuity (UIVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 80 cm (intermediate distance) in LogMAR scale under photopic light conditions.
|
3 months follow up
|
|
Binocular Uncorrected Intermediate Visual Acuity (UIVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 80 cm (intermediate distance) in LogMAR scale under photopic light conditions.
|
3 months follow up
|
|
Monocular Uncorrected Near Visual Acuity (UNVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 40 cm (near distance) in LogMAR scale under photopic light conditions.
|
3 months follow up
|
|
Binocular Uncorrected Near Visual Acuity (UNVA)
Time Frame: 3 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 40 cm (near distance) in LogMAR scale under photopic light conditions.
|
3 months follow up
|
|
Binocular Defocus Curve
Time Frame: 3 months follow up
|
To assess the visual acuity for different distances, defocus curves under photopic light conditions will be measured using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) device at 4m.
This test is performed with best distance corrected refraction and spherical additions ranging from -4.5 D to +1.0 D in 0.5D steps.
|
3 months follow up
|
|
Binocular Contrast sensitivity
Time Frame: 3 months follow up
|
The contrast sensitivity test consists in assessing the possibility to distinguish the alternation of white and grey fringes of difference contrast with difference frequency.
Contrast sensitivity will be assessed under photopic and mesopic light conditions using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) device at 2.5 m.
|
3 months follow up
|
|
Halo Photic phenomena
Time Frame: 3 months follow up
|
The amount and disturbance of photic halo side effects will be assessed by two methods: 1) Halo and Glare simulator: With this software tool the particant mimics the individual vision perception by adjusting a typical night scene image with the intensity and size of glare and halo; 2) Siepser Glarometer (Gulden Ophthalmics, Elkins Park, PA 19027).
This is a target-like device that measures and quantifies post-operative glare.
The measurement is of the participants' actual scope and range of monocular glare and halo.
|
3 months follow up
|
|
Glare Photic phenomena
Time Frame: 3 months follow up
|
The amount and disturbance of photic glare side effects will be assessed by two methods: 1) Halo and Glare simulator: With this software tool the particant mimics the individual vision perception by adjusting a typical night scene image with the intensity and size of glare and halo; 2) Siepser Glarometer (Gulden Ophthalmics, Elkins Park, PA 19027).
This is a target-like device that measures and quantifies post-operative glare.
The measurement is of the participants' actual scope and range of monocular glare and halo.
|
3 months follow up
|
|
Patient-Reported Spectacle Independence Questionnaire (PRSIQ)
Time Frame: 3 months follow up
|
The Patient-Reported Spectacle Independence Questionnaire (PRSIQ) is comprised of 3 questions about the need for glasses or contacts in the past 7 days for distance vision (at least 1.5 meters (m) away), intermediate vision (0.5 m to 1.5 m away), and near vision (< 0.5 m away).
Possible scores range from 1 to 5, with 1 = All of the time and 5 = None of the time for six of the questions; 3 of these questions ask the question in a positive way and 3 of the question ask the question in a negative way, so the higher scores are better for the negative question and are worse for the positive question.
There are also 3 questions whether glasses or contacts were needed in the past 7 days with scores of Yes = 1 and No = 2.
The results for each question will be summarized separately.
|
3 months follow up
|
|
Near Activity Visual Questionnaire (NAVQ)
Time Frame: 3 months follow up
|
The Near Activity Visual Questionnaire (NAVQ) is comprised of 10 questions about performing activities without extra reading spectacles.
Each question has responses of 0 to 4, with 0 indicating 'No difficulty' and 4 indicating 'Extreme difficulty'.
Any 'Not applicable' responses are scored according to the median overall score for the subject.
The scores are summed with total score ranging from 0 to 30.
Higher scores indicate more difficulty performing specified activities without spectacles.
|
3 months follow up
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Binocular Uncorrected Distance Visual Acuity (UDVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Monocular Uncorrected Distance Visual Acuity (UDVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Monocular Corrected Distance Visual Acuity (CDVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m, 80 cm and 40 cm in LogMAR scale under photopic light conditions.
Corrected means spectacle corrected.
|
12 months follow up
|
|
Binocular Corrected Distance Visual Acuity (CDVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 4 m, 80 cm and 40 cm in LogMAR scale under photopic light conditions.
Corrected means spectacle corrected.
|
12 months follow up
|
|
Monocular Uncorrected Intermediate Visual Acuity (UIVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 80 cm (intermediate distance) in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Binocular Uncorrected Intermediate Visual Acuity (UIVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 80 cm (intermediate distance) in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Monocular Uncorrected Near Visual Acuity (UNVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 40 cm (near distance) in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Binocular Uncorrected Near Visual Acuity (UNVA)
Time Frame: 12 months follow up
|
The visual acuity measurements will be assessed using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) at 40 cm (near distance) in LogMAR scale under photopic light conditions.
|
12 months follow up
|
|
Binocular Defocus Curve
Time Frame: 12 months follow up
|
To assess the visual acuity for different distances, defocus curves under photopic light conditions will be measured using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) device at 4m.
This test is performed with best distance corrected refraction and spherical additions ranging from -4.5 D to +1.0 D in 0.5D steps.
|
12 months follow up
|
|
Binocular Contrast sensitivity
Time Frame: 12 months follow up
|
The contrast sensitivity test consists in assessing the possibility to distinguish the alternation of white and grey fringes of difference contrast with difference frequency.
Contrast sensitivity will be assessed under photopic and mesopic light conditions using Clinical Trial Suite (M&S Technologies, Niles, IL, USA) device at 2.5 m.
|
12 months follow up
|
|
Halo Photic phenomena
Time Frame: 12 months follow up
|
The amount and disturbance of photic halo side effects will be assessed by two methods: 1) Halo and Glare simulator: With this software tool the particant mimics the individual vision perception by adjusting a typical night scene image with the intensity and size of glare and halo; 2) Siepser Glarometer (Gulden Ophthalmics, Elkins Park, PA 19027).
This is a target-like device that measures and quantifies post-operative glare.
The measurement is of the participants' actual scope and range of monocular glare and halo.
|
12 months follow up
|
|
Glare Photic phenomena
Time Frame: 12 months follow up
|
The amount and disturbance of photic glare side effects will be assessed by two methods: 1) Halo and Glare simulator: With this software tool the particant mimics the individual vision perception by adjusting a typical night scene image with the intensity and size of glare and halo; 2) Siepser Glarometer (Gulden Ophthalmics, Elkins Park, PA 19027).
This is a target-like device that measures and quantifies post-operative glare.
The measurement is of the participants' actual scope and range of monocular glare and halo.
|
12 months follow up
|
|
Patient-Reported Spectacle Independence Questionnaire (PRSIQ)
Time Frame: 12 months follow up
|
The Patient-Reported Spectacle Independence Questionnaire (PRSIQ) is comprised of 3 questions about the need for glasses or contacts in the past 7 days for distance vision (at least 1.5 meters (m) away), intermediate vision (0.5 m to 1.5 m away), and near vision (< 0.5 m away).
Possible scores range from 1 to 5, with 1 = All of the time and 5 = None of the time for six of the questions; 3 of these questions ask the question in a positive way and 3 of the question ask the question in a negative way, so the higher scores are better for the negative question and are worse for the positive question.
There are also 3 questions whether glasses or contacts were needed in the past 7 days with scores of Yes = 1 and No = 2.
The results for each question will be summarized separately.
|
12 months follow up
|
|
Near Activity Visual Questionnaire (NAVQ)
Time Frame: 12 months follow up
|
The Near Activity Visual Questionnaire (NAVQ) is comprised of 10 questions about performing activities without extra reading spectacles.
Each question has responses of 0 to 4, with 0 indicating 'No difficulty' and 4 indicating 'Extreme difficulty'.
Any 'Not applicable' responses are scored according to the median overall score for the subject.
The scores are summed with total score ranging from 0 to 30.
Higher scores indicate more difficulty performing specified activities without spectacles.
|
12 months follow up
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Robert Ang, MD, Asian Eye Institute
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- BL1901
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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