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To compare ability to see a blurred image among people who do not wear any glass, people who wear glasses and people who underwent laser correction

Comparison of blur perception in myopes, emmetropes and post LASIK patients

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2020/07/026291
Enrollment
15
Registered
2020-07-01
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

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

Conditions

None listed

Interventions

None listed

Sponsors

Manipal Academy of Higher Education MAHE
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Group 1: No subjective refractive error; BCVA of 0.0logMAR, no retinal pathologies, no binocular vision anomalies. Group 2:Spectacle corrected for at least the past 6 months. (1.00-8.00D of myopia); BCVA of 0.0LogMAR, no retinal pathologies, no binocular vision anomalies. Group 3:Was wearing/ using refractive correction previously and underwent any corneal refractive Surgery 1 year before the commencement of the study; BCVA of 0.0LogMAR, no retinal pathologies, no binocular vision anomalies.No residual myopia post LASIK.

Exclusion criteria

Exclusion criteria: 1. Any ocular comorbidities other than myopia. 2. More than 1.00D of anisometropia will be excluded. 3. No other history of any incisional procedures other than LASER Refractive Surgery. 4. Subjects with residual myopia post LASIK and other complications such as flap dislocation and ectasia. 5. Anisometropia of more than 1.00D and unilateral myopia.

Design outcomes

Primary

MeasureTime frame
Depth of focus Point of subjective neutralityTimepoint: At the end of the study

Secondary

MeasureTime frame
NilTimepoint: NA

Countries

India

Contacts

Public ContactDr Shonraj Ballae Ganeshrao

Manipal College of Health Professions

shonraj.bg@manipal.edu

Outcome results

None listed

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