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A comparison of visual function of two types of lenses used in cataract surgery to see which one works better with respect to optical parameters of the two lenses.

A comparative prospective clinical study of optical performance of two types of diffractive-refractive trifocal intraocular lenses - NIL

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/04/083982
Enrollment
90
Registered
2025-04-03
Start date
Unknown
Completion date
Unknown
Last updated
2025-07-21

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

Conditions

Health Condition 1: H251- Age-related nuclear cataract

Interventions

Intervention1: NIL: NIL Control Intervention1: NIL: NIL

Sponsors

Anita Kumawat
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients undergoing cataract surgery for both eyes at an interval of 7 days to 28 days Has no significant astigmatism Healthy macula with visual potential of 6/6 or 6/7.5 Willingness to comply with study protocols and follow up visits In the capsular bag intraocular lens

Exclusion criteria

Exclusion criteria: Patient with unhealthy zonules and lens capsule Localized and systemic conditions affecting visual potential History of ocular trauma or surgery Taking medication that affect vision Unwilling to undergo second eye surgery in 1 month Patient with follow up of less than 3 monhts

Design outcomes

Primary

MeasureTime frame
To compare vision at near, intermediate and distance after implantation of the intraocular lensTimepoint: At 1 day, 1 week, 1 month and 3 months

Secondary

MeasureTime frame
Defocus curve, residual refraction, contrast sensitivity, visual disturbances, VF scoreTimepoint: At 1 day, 1 week, 3 weeks, 3months

Countries

India

Contacts

Public ContactDr Maj Gen JKS Parihar

Centre For Sight Eye Hospital

drmahipal@gmail.com9810046017

Outcome results

None listed

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