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A comparison of two online lens calculators to improve astigmatism correction in cataract surgery

Assessing astigmatic prediction errors: A comparative analysis of Two Toric IOL calculation methods - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/06/088038
Enrollment
70
Registered
2025-06-02
Start date
Unknown
Completion date
Unknown
Last updated
2025-06-24

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 Intervention2: Nil: Nil

Sponsors

Dr Isha Nirgudkar
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients with uneventful cataract surgery Regular astigmatism of more than 1 D Patients willing to participate in the study

Exclusion criteria

Exclusion criteria: Patients with co-existing ocular pathologies, such as pseudoexfoliation, glaucoma, traumatic cataract, or other comorbidities Patients not willing for the study Previous refractive or any other ocular surgery Patients with ocular surface disorders. Previous ocular trauma Post operative best corrected visual acuity less than 6 by 12 Patients with irregular corneal astigmatism

Design outcomes

Primary

MeasureTime frame
Prediction error in residual astigmatism between Barretts and Tecnis toric calculator Timepoint: POST OPERATIVE 4 WEEKS—

Secondary

MeasureTime frame
Centroid & mean absolute errors in prediction errors in astigmatism between Barretts & Tecnis toric calculator Prediction error in spherical equivalent between Barretts & Tecnis toric calculator Timepoint: POST OPERATIVE 4 WEEKS—

Countries

India

Contacts

Public ContactDr Isha Nirgudkar

RJ Sankara Eye Hospital, Panvel

paritekarprajakta@gmail.com9881409630

Outcome results

None listed

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