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To evaluate the improvement in vision and Contrast sensitivity using a computer based software Revital Vision therapy in patients with Corneal thinning (Keratoconus) after Collagen cross linking procedure ,after Post laser power correction and after cataract surgery with multifocal IOLs

"A stratified randomized clinical study evaluating RevitalVision therapy for improving best- corrected visual acuity and contrast sensitivity function in patients a) with stable keratoconus and those who have undergone Collagen Cross-linking surgery b) who have undergone laser Refractive surgery and c) who have undergone phaco-emulsification with extended depth of focus or multifocal IOLs" - NA

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2022/05/042734
Enrollment
180
Registered
2022-05-23
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: H537- Vision sensitivity deficiencies

Interventions

Intervention1: RevitalVisionâ??s perceptual learning therapy: Computerised vision therapy Using Gabor Patch and customization as per patients need for a duration of 12 weeks of vision therapy and foll

Sponsors

Medical Research Foundation Sankara Nethralya
Lead Sponsor
Revital Vision
Collaborator

Eligibility

Inclusion criteria

Inclusion criteria: Post Lasik Surgery(Cohort 1) Age for Post Refractive surgery 18-35 years Recruitment after 1 month of after Refractive surgery (LASIK/ EPI LASIK) All subjects with best-corrected visual acuity of 6/12 or better Subjects with subnormal contrast sensitivity Minimum requirement- laptop with a 15-inch screen with mouse and an internet connection at home Post Collagen Cross-Linking(Cohort 2) Age for Post Collagen Cross-Linking Surgery 10 years onwards Recruitment: Patients with stable keratoconus for over 12 months, and patients after 3 months of Collagen Cross-Linking surgery All subjects with best-corrected visual acuity of 6/12 or better Subjects with subnormal contrast sensitivity Minimum requirement- laptop with a 15-inch screen with mouse and an internet connection at home. Post Cataract Surgery EDOF or multifocal IOLs(Cohort 3) Age for Post Cataract surgery 40-75 yrs Recruitment 4 weeks after multifocal IOL implantation. All subjects with best-corrected visual acuity of 6/12 or better Subjects with subnormal contrast sensitivity Minimum requirement- laptop with a 15-inch screen with mouse and an internet connection at home

Exclusion criteria

Exclusion criteria: Post Lasik Surgery(Cohort 1) Presence of ocular co morbidities Subject with severe untreated attention disorder Subject who suffers from chronic migraine Epilepsy Post Collagen Cross-Linking(Cohort 2) Presence of ocular co morbidities Subject with severe untreated attention disorder Subject who suffers from chronic migraine Epilepsy Post Cataract Surgery EDOF or multifocal IOLs (Cohort 3) Presence of ocular co morbidities Subject with severe untreated attention disorder Subject who suffers from chronic migraine Epilepsy

Design outcomes

Primary

MeasureTime frame
Outcome measure: Improvement in Best Corrected Visual Acuity and Contrast Sensitivity Function. Change in Best Corrected Visual Acuity and Contrast Sensitivity Function in patients after Refractive surgery, Collagen cross linking and Phacoemulsification with extended depth of focus or multifocal IOLsTimepoint: Evaluated at 12 weeks , 6 months and at the end of one year—

Secondary

MeasureTime frame
To improve self-reported Quality of Vision, and overall binocular vision.Timepoint: 12 weeks—

Countries

India

Contacts

Public ContactDr Rachapalle Reddi Sudhir

Ophthalmologist, Sankara Nethralaya

drrrs@snmail.org42271500

Outcome results

None listed

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