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To compare the readings obtained [ K readings] from 4 machines used for measuring corneal curvature, in patients undergoing LASER assisted cataract surgery.

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

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2014/09/004955
Enrollment
50
Registered
2014-09-01
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- Healthy individuals with cataract opting for LASER assisted surgery.

Interventions

None listed

Sponsors

NETHRADHAMA SUPERSPECIALITY EYE HOSPITAL
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Patients giving written informed consent. 2.Patients within the age group of 50-70years. 3.Patients voluntarily undergoing Femtosecond LASER Cataract surgery. 4.Patients with pre-operative astigmatism of 0.5D or more.

Exclusion criteria

Exclusion criteria: 1. Patients using any topical medications (anti-glaucoma medications,etc.) 2. Patients with keratoconus, corneal ectatic disorders, corneal opacities. 3.uncooperative patients ( suffering from dementia, etc) 4. Patients with obvious dry eye syndrome. 5. Patients with history of any ocular surgery including refractive surgery. 6. Patients with any surface conjunctival disorder such as pingecula, pterygium,etc. 7. Patients with inflammatory ocular condition.

Design outcomes

Primary

MeasureTime frame
To compare and estimate the predictablity of the K-values obtained by Manual Keratometer,Auto-keratometer, Orbscan and IOL-Master.Timepoint: Each patient undergoing Femto-LASER Cataract surgery will be subjected to each the above mentioned test ONCE ONLY pre-operatively. Three readings each will be taken and an average value will be calculated. Data collected/ outcome will be assessed at three monthly intervals. Final data will be assessed after completion of 1 year.—

Secondary

MeasureTime frame
To estimate the predictability of the K-values with these Auto-keratometer, Orbscan and IOL-master when compared the Standard Manual Keratometer.Timepoint: Each patient undergoing Femto-LASER Cataract surgery will be subjected to each the above mentioned test once pre-operatively. Three readings each will be taken and an average value will be calculated.—

Countries

India

Contacts

Public ContactDR SRI GANESH

NETHRADHAMA SUPERSPECIALTY EYE HOSPITAL

kritika.chopra.7289@gmail.com08026634202

Outcome results

None listed

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