Comparison of WTW Corneal Diameter by IOL Master500,Pentacam & Digital Calipers & Its Biometric Correlation
Trial Snapshot
- Phase
- Not Applicable
- Status
- Not yet recruiting
- Sponsor
- Enrollment
- 50
- Locations
- 1
- Primary Endpoint
- WTW corneal diameter using IOL Master, Pentacam and Digital Caliper.
Study Overview
Brief Summary
This prospective cross-sectional observational study aims to compare white-to-white(WTW) corneal diameter measurements obtained using three modalities-Pentacam,IOL Master 500, and digital calipers-in healthy adults. The objective is to assess the agreement and correlation among these methods and evaluate their association with ocular biometric parameters such as axial length, anterior chamber depth, keratometry. By validating the accuracy of low-cost digital calipers against advanced imaging systems, the study explores the potential of their interchangeable use in routine clinical practice, especially in resource limited settings.
Study Design
- Study Type
- Observational
Eligibility Criteria
- Ages
- 20.00 Year(s) to 80.00 Year(s) (—)
- Sex
- All
Inclusion Criteria
- •Healthy individual with age 20 and above Optically clear cornea.
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.
Outcomes
Primary Outcomes
WTW corneal diameter using IOL Master, Pentacam and Digital Caliper.
Time 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.
Biometric parameters like k1,k2, axial length and Anterior Chamber Depth using OL Master and Pentacam.
Time 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.
Secondary Outcomes
No secondary outcomes reported
Investigators
Dr Chitransha Gaur
Sankara Eye Hospital