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We compare corneal size measured by IOL Master, Pentacam, and calipers, and study its relation to eye length and curvature. This helps identify the most reliable tool to guide lens selection and improve cataract surgery outcomes.

Comparison of WTW Corneal Diameter by IOL Master500,Pentacam & Digital Calipers & Its Biometric Correlation - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/08/092491
Enrollment
50
Registered
2025-08-06
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

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

Conditions

None listed

Interventions

Intervention1: Nil: Nil Control Intervention1: NIL: NIL

Sponsors

DrChitransha Gaur
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Healthy individual with age 20 and above Optically clear cornea. Cooperative subjects able to maintain fixation during all tests.

Exclusion criteria

Exclusion criteria: Patients with previous history of ocular surgery or trauma. Any corneal pathology (e.g., keratoconus, dystrophies, degenerations) Active contact lens use. Active ocular infection or inflammation. Systemic conditions of eye(connective tissue disorders) Patients with poor fixation due to ocular or neurological causes (e.g., nystagmus, macular disease, advanced cataract, amblyopia, or cognitive impairment), leading to poor-quality scans or inability to complete standardized WTW measurements. Severe ptosis or lid abnormalities.

Design outcomes

Primary

MeasureTime frame
WTW corneal diameter using IOL Master, Pentacam and Digital Caliper. Biometric parameters like k1,k2, axial length and Anterior Chamber Depth using OL Master and Pentacam.Timepoint: WTW corneal diameter using IOL Master, Pentacam and Digital Caliper. Biometric parameters like k1,k2, axial length and Anterior Chamber Depth using OL Master and Pentacam.—

Secondary

MeasureTime frame
NILTimepoint: NIL—

Countries

India

Contacts

Public ContactDr Chitransha Gaur

Sankara Eye Hospital

puneetjohri@sankaraeye.com9839210684

Outcome results

None listed

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