The Effect of a Scleral Lens on the Anterior Chamber Depth and Minimum Rim Width

Completed · Not applicable

Conditions studied: Ocular Hypertension

In brief

The purpose of this study is to evaluate the use of two instruments to measure changes in two ocular structures: 1) the anterior chamber depth (ACD) - measured using low coherence optical biometry, and 2) minimum rim width of the optic nerve head (MRW) - measured using optical coherence tomography. Changes in these ocular structures indicate fluctuations in intraocular pressure (IOP) and will be measured during scleral contact lens (SGP) wear to determine if SGP wear influences IOP. We hypothesize that a scleral lens increases the intraocular pressure (IOP) during active wear and that the ACD and MRW will also change.

Key facts

Study ID

NCT03926975

Run by

University of Houston

People needed

26

Starts

2018-06-01

Expected to finish

2019-08-30

Last updated by the study team

2021-01-29

Who can join

Age: 18 and older, up to 60. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• young, normal individuals

You may not qualify if…

• IOP > 20mm in either eye, and h/o ocular hypertension, glaucoma, or ocular surgery that can affect IOP.
• h/o scleral lens wear or current scleral lens wear

Where it is running

• University Eye Institute — Houston, Texas, United States

Full record on ClinicalTrials.gov

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