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Comparing eye power measured by a person not trained in refraction versus the eye power measured by a person who is trained in refraction

Investigating accuracy of subjective refraction performed by a trained non-refractionist compared with an experienced refractionist in a high volume eye hospital in southern India

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2022/05/042464
Enrollment
420
Registered
2022-05-11
Start date
Unknown
Completion date
Unknown
Last updated
2022-05-30

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

Conditions

Health Condition 1: H526- Other disorders of refraction

Interventions

Intervention1: E-See Subjective: Subjective refraction will be performed by the trained non refractionist Control Intervention1: Subjective Refreaction: Subjective refraction will be performed by the

Sponsors

Aravind Eye Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Attending the general Ophthalmology units of AEH

Exclusion criteria

Exclusion criteria: 1. Present with ocular injury or infections. 2. Are on medications that can influence the refraction measurement. 3. Are physically or mentally challenged

Design outcomes

Primary

MeasureTime frame
Refractive errorTimepoint: 3 months—

Secondary

MeasureTime frame
Submission of the findings in a peer reviewed journalTimepoint: 12 months—

Countries

India

Contacts

Public ContactSanil Joseph

Lions Aravind Institute of Community Ophthalmology (LAICO)

sanil@aravind.org9894279089

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026