Corneal Astigmatism Measurement Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00818532

Enrollment

Registered

2009-01-07

Start date

2008-12-31

Completion date

2009-04-30

Last updated

2012-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Astigmatism

Keywords

Corneal astigmatism, Low diopter, Corneal measurement, Corneal astigmatism < 1 Diopter

Brief summary

To assess which commercially available measurement device is most accurate in measuring low (\< 1.0 D) degrees of corneal astigmatism.

Interventions

None listed

Study design

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

50 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* 50 years of age and older * Proof of eye exam within the last 3 months * Corneal astigmatism of \<1.0 diopter

Exclusion criteria

* Prior history of refractive or corneal surgery * Corneal trauma/disease * Intraocular surgery

Design outcomes

Primary

Measure	Time frame
Measurement of corneal power	Day 1

Countries

United States

Outcome results