RECRUITINGINTERVENTIONAL

Automated Applanation Tonometry - Updated

About This Trial

Goldmann Applanation Tonometry (GAT) is considered the clinical gold standard for eye pressure measurements and yet it is known to be a subjective measurement with limited repeatability and limited portability. Another clinical standard for checking eye pressure is known as the pneumotonometer. This method is more objective but not portable. The purpose of this study is to develop new methods of measuring eye pressure that are more objective, reproducible and portable. In this study, the investigators will be comparing the eye pressure measurements using 2 investigational methods to GAT and pneuumotonometer.

Who May Be Eligible (Plain English)

Criteria: Who May Qualify: - Presenting for a routine eye exam - ≥ 18 years of age - Able and willing to give consent Who Should NOT Join This Trial: - History of corneal scarring - Active infection of the eye - Ocular surface trauma or infection Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language

Criteria: Inclusion Criteria: * Presenting for a routine eye exam * ≥ 18 years of age * Able and willing to give consent Exclusion Criteria: * History of corneal scarring * Active infection of the eye * Ocular surface trauma or infection

Treatments Being Tested

DEVICE

Standard GAT

Standard Goldmann Applanation Tonometry (GAT): this is the standard method for IOP measurement in clinical practice

DEVICE

Fixed force GAT

An investigational device similar to standard GAT

DEVICE

Upright applanating prototype

An investigational device, prism used in standard and fixed-force GAT is attached to a portable device

DEVICE

Pneumotonometer

This is a standard for checking eye pressure. A topical anesthetic (numbing agent). A probe will touch the front of the eye while the machine measures the eye pressure

Locations (1)

Duke Eye Center

Durham, North Carolina, United States