FindTrial
Sign In

A study comparing two methods of selecting lens power in patients undergoing cataract surgery to achieve better vision after surgery

To compare the predictive accuracy of the Barrett Universal 2 and SRK/T intraocular lens power calculation formulae in patients undergoing uneventful phacoemulsification cataract surgery. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/04/109369
Enrollment
100
Registered
2026-04-27
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Health Condition 1: H259- Unspecified age-related cataract

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil Intervention3: Barrett Universal 2 formula: Intraocular lens power calculation using Barrett Universal 2 formula in patients undergoing phacoemusificati

Sponsors

DEPARTMENT OF OPHTHALMOLOGY, SGRDIMSR AMRITSAR
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Presence of visually significant age related cataract Willingness to give informed consent and comply with follow-up Reliable and complete biometric measurements obtained using optical biometry Patients having being given medical fitness with respect to ECG findings and RBS values

Exclusion criteria

Exclusion criteria: Corneal opacities or irregular astigmatism interfering with keratometry History of ocular trauma, inflammations or surgery (including refractive procedures) High myopes Retinal pathologies Pre existing amblyopia Co-existing ocular pathology affecting visual outcome (eg macular degeneration, glaucoma with field loss, uveitis) Systemic diseases affecting vision Intraoperative complications Patients with cataract of grade 4 and 5 with suboptimal results on AL scan for IOL power calculation

Design outcomes

Primary

MeasureTime frame
The Barrett Universal 2 formula provides a better predictability of IOL power calculation and is less susceptible to the effect of the corneal shape, than the SRK/T formula. The Barrett Universal formula, instead of the SRK/T formula, may be clinically helpful for improving the refractive accuracy, especially in eyes with steep or flat corneas.Timepoint: The Barrett Universal II formula provides a better predictability of IOL power calculation and is less susceptible to the effect of the corneal shape, than the SRK/T formula. The Barrett Universal formula, instead of the SRK/T formula, may be clinically helpful for improving the refractive accuracy, especially in eyes with steep or flat corneas. This will be assessed by calculating the refractive error at day 40 post operatively—

Secondary

MeasureTime frame
The Barrett Universal formula, instead of the SRK/T formula, may be clinically helpful for improving the refractive accuracy, especially in eyes with steep or flat corneas which will be assessed by calculating the refractive error at day 40 post operativelyTimepoint: 40 days—

Countries

India

Contacts

Public ContactDr Parneet Kaur

SRI GURU RAMDAS UNIVERSITY OF HEALTH SCIENCES, VALLAH,AMRITSAR

pawanprasher@yahoo.com9646104858

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Jun 11, 2026