Bifocal Contact Lens Study for Adults With Age-Related Near Vision Loss

Presbyopia Clinical Trial

Official title: Clinical Performance Study of Clerio Single Vision and Bifocal Contact Lens Designs Immediately Following Insertion

Status Completed

Clinical Trial Summary

The primary objective of this study is to evaluate the distance, intermediate and near visual performance of Clerio designed single vision and Clerio designed LIRIC modified bifocal lenses (+2.00D add) compared to commercially available single vision and multifocal lenses.

Clinical Trial Description

Clerio Vision Inc. has licensed a new femtosecond based laser procedure discovered by researchers at the University of Rochester known as Laser Induced Refractive Index Customization (LIRIC), which allows the alteration of the optical design of a finished soft hydrogel contact lens. Clerio Vision Inc. scientists have developed a diffractive multifocal optical design using the LIRIC procedure which shows an increase of the depth of focus of the contact lens when measured on an optical bench. It is hypothesized that a presbyopic patient wearing a soft contact lens of this design will experience an improvement in intermediate and near vision over that provided by their distance corrected single vision contact lenses, without significantly impacting their distance vision. The purpose of this feasibility study is the on-eye evaluation of the performance of the Clerio Vision designed and LIRIC modified soft contact lenses. Results from this study will guide future development of these potential products. ;

Related Conditions & MeSH terms

• Presbyopia

• NCT number: NCT03653715
• Study type: Interventional
• Source: Clerio Vision, Inc.
• Status: Completed
• Phase: N/A
• Start date: August 6, 2018
• Completion date: October 12, 2018