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Cataract Surgery Lens Power Calculation After Laser Eye Surgery Using OCT

This study is looking at a new way to calculate the power of an intraocular lens (IOL) for cataract surgery, especially for people who have had laser eye surgery in the past. It uses a special imaging method called Optical Coherence Tomography (OCT) to get very detailed pictures of the front of your eye. The goal is to see if OCT can help doctors more accurately predict the right IOL power for you. You can join if you are an adult needing cataract surgery with a monofocal IOL (including toric IOLs) and have previously had laser vision correction like LASIK or PRK. The study will measure how well the OCT method predicts the IOL power at your initial visit and then check the accuracy of that prediction up to six months after your cataract surgery.

Study design
This is an observational study planning to enroll 690 participants. It is not specified if it is randomized or blinded.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for up to six months after cataract surgery to check the accuracy of the IOL power prediction.

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NCT00532051

Intraocular Lens Power Calculation After Laser Refractive Surgery Based on Optical Coherence Tomography

UNKNOWN
Not specifiedAges 18+Observational
Oregon Health and Science University
~690 participants
Updated 2024-02-12 on ClinicalTrials.gov
What's tested:OCT measurements

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
IOL power prediction (baseline visit)
Measured over Study enrollment
+1 more outcome measured

Conditions

Cataract

Explore related trials

Cataract

Where it's being run

1 sites across 1 states
Oregon1

Study leadership

  • David Huang, MD, PhD · PRINCIPAL_INVESTIGATOR · Casey Eye Institute, Oregon Health & Science University

Who to contact

Humberto Martinez, COT
[email protected]
503-494-7712
Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

The subjects will be patients seeking cataract surgery with implantation of monofocal IOLs (including toric IOLs) but not multifocal or accommodative IOLs.
Subjects will have had post-laser vision correction (LVC) such as previous LASIK, PRK, laser sub-epithelial keratectomy (LASEK), epi-LASIK (surface laser ablation under a microkeratome-created epithelial flap) or RK. The post-LVC group will be subdivided into those who have previous hyperopic LVC and those who have previous myopic LVC.

Exclusion

Inability to give informed consent.
Inability to maintain stable fixation for OCT imaging.
Inability to commit to required visits to complete the study.
Eyes with concurrent cataract, retinal diseases, glaucoma, or other eye conditions that may limit the visual outcome after surgery.

What this trial measures

  • IOL power prediction (baseline visit)Study enrollment

    Subjects will be assessed at study enrollment, and a prediction of the most suitable IOL power will be made. Predicted IOL power will be measured in Diopters.

  • IOL power prediction error (post-operative visit)No later than 6-months following cataract surgery.

    Subjects will be assessed no later than 6-months following cataract surgery to assess accuracy of IOL power prediction at baseline visit. IOL power error will be measured in Diopters.