Clinical Behavior of the Asqelio™ Trifocal Diffractive Intraocular Lens

March 17, 2023 updated by: AST Products, Inc.

Retrospective Study on the Clinical Behavior of the Asqelio™ Trifocal Diffractive Intraocular Lens With Follow-up at 3 Months

The main objective of this study was to evaluate distance, intermediate, and near vision in patients who have undergone cataract extraction with bilateral implantation of a new hydrophobic trifocal diffractive intraocular lens (IOL) with a biospheric design, the Asqelio Trifocal IOL (AST Products, Inc., Billerica MA, USA), along with patient-reported outcomes (PRO). For that purpose the clinical information of 50 eyes from 25 patients was retrospectively analyzed 3 months after implantation

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

25

Contacts and Locations

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

Study Locations

    • Cordoba
      • Córdoba, Cordoba, Spain, 14012
        • Hospital La Arruzafa

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

50 years to 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Subjects are regular clinic patients submitted to bilateral conventional cataract surgery by phacoemulsification, who wanted to correct their refractive error and presbyopia, and thus were implanted with the trifocal IOL subject to study by common clinical practice

Description

Inclusion Criteria:

  • 50 years or older submitted to cataract surgery with binocular implantation of Asqelio Trifocal TFLIO130C IOL
  • Seeking spectacle independence after surgery
  • IOL power between +5.0D y +34.0D
  • Transparent ocular media, except for the cataract prior to surgery.
  • Potential postoperatory visual acuity of 20/25 or better, as assessed prior to surgery

Exclusion Criteria:

  • Preoperatory corneal astigmatism greater than 1.0D
  • Previous corneal surgery or trauma
  • Irregular cornea (e.g. keratoconus)
  • Choroidal hemorrhage
  • Microftalmos
  • Severe corneal dystrophy
  • Uncontrolled or medically controlled glaucoma
  • Clinically significant macular changes
  • Severe concomitant ocular condition
  • Cataract not age-related
  • Severe optic nerve atrophy
  • Diabetic retinopathy
  • Ambyopia
  • Extremely shallow anterior chamber
  • Severe chronic uveitis
  • Pregnancy or lactating
  • Rubella
  • Mature/dense cataract difficulting preoperatory eye fundus assessment
  • Previous retinal detachment
  • Concurrent participation in another investigation involving drugs or medical devices

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Uncorrected distance visual acuity
Time Frame: 3 months after implantation
Uncorrected visual acuity for distance (4m) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Best-corrected distance visual acuity
Time Frame: 3 months after implantation
Best-corrected visual acuity for distance (4m) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Uncorrected intermediate visual acuity
Time Frame: 3 months after implantation
Uncorrected visual acuity for intermediate disntace (60cm) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Distance-corrected intermediate visual acuity
Time Frame: 3 months after implantation
Distance-corrected visual acuity for intermediate disntace (60cm) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Uncorrected near visual acuity
Time Frame: 3 months after implantation
Uncorrected visual acuity for near (40cm) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Distance-corrected near visual acuity
Time Frame: 3 months after implantation
Distance-corrected visual acuity for near (40cm) determined under photopic conditions using EDTRS optotypes, in LogMAR units
3 months after implantation
Defocus curve
Time Frame: 3 months after implantation
Binocular defocus curve with best correction for distance obtained varying mergence from -4.0D to +2.0D in 0.5D steps
3 months after implantation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Manifest Refraction
Time Frame: Preoperatively and 3 months after implantation
Refraction determined monocularly by subjective refraction methods, in diopters
Preoperatively and 3 months after implantation
Adverse events
Time Frame: 3 months after implantation
Percentage of subjects with adverse events (ocular and non ocular, severe and non severe), including secondary surgical interventions
3 months after implantation
Patient-reported outcomes CATQuest9SF
Time Frame: 3 months after implantation
Patient reported outcomes were assessed by CATQuest9SF questionnaire
3 months after implantation
Patient-reported outcomes PRSIQ
Time Frame: 3 months after implantation
Patient reported outcomes were assessed by patient-reported spectacle independence questionnaire (PRSIQ)
3 months after implantation
Patient-reported outcomes PRVSQ
Time Frame: 3 months after implantation
Patient reported outcomes were assessed by the patient-reported visual symptoms questionnaire (PRVSQ)
3 months after implantation

Collaborators and Investigators

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

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)

May 27, 2022

Primary Completion (Actual)

June 1, 2022

Study Completion (Actual)

September 1, 2022

Study Registration Dates

First Submitted

February 13, 2023

First Submitted That Met QC Criteria

March 17, 2023

First Posted (Actual)

March 20, 2023

Study Record Updates

Last Update Posted (Actual)

March 20, 2023

Last Update Submitted That Met QC Criteria

March 17, 2023

Last Verified

February 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ASQT022022

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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