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Retrospective study of Comparison ofcorneal curvature using four different instruments and comparing it with the standard one, manual keratometer

COMPARATIVE STUDY OF THE KERATOMETRIC READINGS OBTAINED WITH MANUAL KERATOMETER, AUTO-KERATOMETER, ORBSCAN, IOL- MASTER AND PENTACAM IN PATIENTS UNDERGOING FEMTO-SECOND LASER ASSISTED CATARACT SURGERY.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2015/05/005745
Enrollment
80
Registered
2015-05-05
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

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

Conditions

Health Condition 1: null- CATARACT

Interventions

Control Intervention1: NIL: NIL

Sponsors

NETHRADHAMA SUPERSPECIALTY EYE HOSPITAL
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patients within age group of 50-70yrs. 2. Patients voluntarily undergoing FLACS. 3. Patients with pre-operative corneal astigmatism of 0.5 D or more.

Exclusion criteria

Exclusion criteria: 1. Patients using any topical medication (such as anti-glaucoma medications,etc.) 2. Patients with keratoconus or any other corneal ectatic disorders, corneal opacities. 3. Un cooperative patients (suffering from dementia, unable to understand language) 4. Patients with obvious Dry Eye Syndrome. 5. Patients with any surface conjunctival disorders such as pinguecula, pterygium, etc. 6. Patients with glaucoma. 7. History of previous ocular surgery including refractive surgery. 8. Inflammatory ocular conditions such as keratitis, kerato-uveitis.

Design outcomes

Primary

MeasureTime frame
To compare the keratometric readings obtained among patients undergoing Femto-second LASER Assisted Cataract Surgery (FLACS), using â?¢ Manual Keratometer (Bausch and Lomb type) â?¢ Automated Keratometer (TOPCON KR-1, Japan) â?¢ ORBSCAN II ( Bausch and Lomb, USA) â?¢ IOL Master 500(Carl Ziess Meditec, Germany) â?¢ Pentacam® (Oculus, Germany) Timepoint: Measurement of Keratometric readings was done once pre-operatively.—

Secondary

MeasureTime frame
NILTimepoint: NIL—

Countries

India

Contacts

Public ContactKRITIKA CHOPRA

NETHRADHAMA SUPERSPECIALTY EYE HOSPITAL

kritika.chopra.7289@gmail.com9811485825

Outcome results

None listed

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