Refraction Determination Analysis

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01995435

Enrollment

Registered

2013-11-26

Start date

2015-02-28

Completion date

2015-06-30

Last updated

2015-09-07

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

Conditions

Astigmatism,, Eye Strain,, Hyperopia,, Myopia,, Presbyopia,

Brief summary

Correlating the accuracy of a refraction done over telemedicine to that of a standard refraction, with a study hypothesis that the results will be equivalent.

Interventions

DEVICETelemedicine refraction

DEVICETraditional refraction

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

DIAGNOSTIC

Masking

TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

* 18-40 years old * healthy eyes

Exclusion criteria

* mid level ocular diseases (glaucoma, hypertension, retinal issues) * psychiatric disorders * brain tumor or history of * under 18, or over 40 years old

Design outcomes

Primary

Measure	Time frame
refraction in diopters over telemedicine compared standard phoropter refraction	an average of 1 year

Secondary

Measure	Time frame	Description
telemedicine refraction results beyond dioptric readings	an average of 1 year	to see if there are other uses for telemedicine refraction results

Other

Measure	Time frame
patient satisfaction from telerefraction	an average of 1 year

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026