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

Vance Thompson Vision

Status: Completed

Conditions: Presbyopia

Treatments: Diagnostic Test: There is not an intervention

Study type: Observational

Funder types: Other; Industry

Identifiers

NCT04474782

VT-2019-01

Details and patient eligibility

About

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.

Enrollment: 45 patients

Sex: All

Ages: 37 to 48 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Able and willing to provide written informed consent on the IRB approved Informed Consent Form
2. 37-48 years of age
3. Phakic

Exclusion criteria

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