Study of Clinical Performance of Corneal Topography Measurement Using an Optical Biometer

Haag-Streit

Status: Completed

Conditions: Corneal Topography

Study type: Observational

Funder types: Other; Industry

Identifiers

NCT01861925

HS-LS900-TOPO-01

Details and patient eligibility

About

The purpose of this study is to quantify in-vivo repeatability of a new corneal topography measurement mode of an optical biometer, and the clinical performance of measurement in comparison to reference devices.

Enrollment: 50 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 18 years or older

Exclusion criteria

• No corneal transplants
• No corneal scar(s)
• No acute infections of the eye
• No weak fixation
• No suspected lack of compliance
• No vulnerable population

Trial design

50 participants in 3 patient groups

Normal eye

Description:

Astigmatism smaller than 1.5 diopters

Large regular astigmatism

Description:

Astigmatism of \> 1.5 diopters, regular astigmatism.

Large irregular astigmatism

Description:

Astigmatism of \> 1.5 diopters, irregular astigmatism.