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A Comparison of Eye Pressures measured Using Three Different Devices in People having different visual defects and Corneal Thickness.

A COMPARATIVE STUDY OF INTRAOCULAR PRESSURE USING GOLDMANN APPLANATION, ICARE AND CORVIS ST AMONG DIFFERENT REFRACTIVE GROUPS WITH CORRELATION TO CENTRAL CORNEAL THICKNESS. - nil

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/11/097061
Enrollment
120
Registered
2025-11-07
Start date
Unknown
Completion date
Unknown
Last updated
2025-11-17

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

Conditions

Health Condition 1: H578- Other specified disorders of eye and adnexa

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil

Sponsors

Centre For Sight Eye Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Subjects consenting for the study. 2.Age of subject 45 years to 60 years 3.Subjects having Emmetropia: Error within the range of plus minus 0.25 D. Hypermetropia: Error within the range of plus 3D to plus 5 D Myopia: Error within the range of minus 3D to minus 5D Astigmatism: Error less than plus minus 0.50 D

Exclusion criteria

Exclusion criteria: 1.Subjects unwilling to participate. 2.Age is equal to and less than 45 years, more than 60 years 3.Patients with any significant systemic diseases. 4.Patients taking any systemic medications that may affect vision or are on steroids for any autoimmune diseases or organ transplants. 5.Patients with dry eyes, ocular surface pathologies (OSSN , SJS ,and OCP) glaucoma and corneal microtrauma. 6.Anxious patients / Type A personalities to avoid any anxiety issues and fear issues

Design outcomes

Primary

MeasureTime frame
This study aims to examine the agreement among the three devices(GAT, Icare and Corvis ST) and to investigate potential factors that might account for the difference between the IOP values. It is expected to correlate IOP values with various refractive statuses such as emmetropia, hypermetropia and myopia.Timepoint: At baseline

Secondary

MeasureTime frame
• Correlate the influence of corneal biomechanism on the values of IOP evaluated by the use of Goldmann Applanation Tonometer (GAT), Icare Tonometer, and Corvis ST in Emmetropia, Hypermetropia and Myopia.Timepoint: One Time

Countries

India

Contacts

Public ContactMaj Gen Dr JKS Parihar Retd

Centre For Sight Eye Hospital, Safdarjung Enclave, New Delhi

jksparihar@gmail.com9818992191

Outcome results

None listed

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