Analysis of Defocus Curve of Pre-Presbyopic and Emerging Presbyopic Patients

Completed

Conditions studied: Presbyopia

In brief

Educating patients on visual performance with presbyopic correcting intraocular lenses is crucial. Understanding the defocus curve of pre-presbyopic and emerging presbyopic crystalline lens will provide eye care provides useful information to better educate patients on visual performance expectations after cataract surgery with a presbyopic correcting intraocular lens. Our objective will be to assess the subjective range of clear vision of a pre-presbyopic and emerging presbyopic patient population utilizing a defocus curve. A comparison of the pre-presbyopic and emerging presbyopic defocus curve to all FDA-approved presbyopic intraocular lenses will be discussed in the manuscript.

Key facts

Study ID

NCT04474782

Run by

Vance Thompson Vision

People needed

45

Starts

2019-10-17

Expected to finish

2020-08-31

Last updated by the study team

2021-03-30

Who can join

Age: 37 and older, up to 48. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Able and willing to provide written informed consent on the IRB approved Informed Consent Form
• 37-48 years of age
• Phakic

You may not qualify if…

• Previous cataract surgery
• Any pathology for which, in the investigator's judgement, could reduce the subjects BCVA
• Subjects that are unable to obtain 20/20 BCVA (i.e. amblyopia, etc.)

Where it is running

• Vance Thompson Vision — Sioux Falls, South Dakota, United States

Full record on ClinicalTrials.gov

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