N/A
N=205
Comparing Low-cost Handheld Autorefractors - a Practical Approach to Measuring Refraction in Low Resource Settings
Myopia · Hyperopia
Bottom Line
View on ClinicalTrials.gov: NCT03456245 ↗Enrolled (actual)
205
Serious AEs
—
Results posted
Feb 2020
Primary outcome: Primary: Accuracy of Assessment of Participants' Best Visual Acuity (in Diopters) — 0.685; -0.416; -0.039 Diopters
Study Design & Population
- Study type
- Observational
- Phase
- N/A
- Interventions
- Vision device validation (Device)
- Age
- Adult, Older Adult · 40+ yrs
- Sex
- All
- Sponsor
- Harvard School of Public Health (HSPH)
- Primary completion
- Sep 2016
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Accuracy of Assessment of Participants' Best Visual Acuity (in Diopters) |
0.685; -0.416; -0.039 | — |
Summary
Study compares four portable vision measurement and eye-imaging technologies in terms of accuracy and time and ease of use with older adult (ages 40-100) participants in a developing-country setting (India). Specifically, the five portable devices will be measured against the baseline of the traditional eye-examination techniques, including the use of eye charts and phoropters.
Eligibility Criteria
Inclusion Criteria
- Individuals aged 40-100 coming to Sankara Eye Hospital from surrounding urban/rural communities.
Exclusion Criteria
- Individuals under the age of 40.
- Blind individuals
- Individuals with acute glaucoma, eye trauma/injury, infections such as conjunctivitis
- Individuals physically/cognitively incapable of following basic instructions and sitting/standing still in order to use devices.
Data sourced from ClinicalTrials.gov (NCT03456245). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.