Portable Autorefractor- InstaRef R20
Not Applicable
- Registration Number
- CTRI/2021/11/037869
- Lead Sponsor
- Diwakar Rao
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Yet Recruiting
- Sex
- Not specified
- Target Recruitment
- 0
Inclusion Criteria
Subjects with BCVA 20/20 in each eye.
Subjects with refractive errors between Sph+/-10D, Cyl +/-5D.
Exclusion Criteria
Subjects with significant media opacity- corneal opacity, advanced cataract, vitreous hemorrhage. posterior segment pathology affecting visual acuity, amblyopia and inability to fixate, active eye infection, inflammation.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Demonstrate the performance of InstaRef R20 when compared against subjective refraction (gold standard). <br/ ><br>Timepoint: At the end of the study <br/ ><br>
- Secondary Outcome Measures
Name Time Method Demonstrate the substantial equivalence in terms of performance and safety of a InstaRef R20 in measuring refractive errors when compared against a Open field AR, Plusoptic, Quicksee and standard tabletop autorefractor Topcon ARK 800. <br/ ><br>Timepoint: At the end of the trail