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To determine Visual Improvement in patients with Conical Protrusion of Eye after inserting transparent ring into the Eye as a Treatment

Visual Outcomes of Intra Corneal Ring Segments in the Management of Keratoconus

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2022/08/044694
Enrollment
30
Registered
2022-08-16
Start date
Unknown
Completion date
Unknown
Last updated
2022-10-17

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

Conditions

Health Condition 1: H186- Keratoconus

Interventions

Intervention1: Intra Corneal Ring Segment: The main mode of action of Intra Corneal Ring Segment (ICRS) is Arc-shortening� effect, caused by increased lamellar volume of the implant which incre

Sponsors

Sankara Eye Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Keratoconic eyes with �· age more than 21 years of age �· clear central corneas �· intolerance to both contact lens and spectacle correction �· minimum corneal thickness of 450 micrometer at the site of incision and 350 micro meter at the central cornea �· patient with progressive keratoconus

Exclusion criteria

Exclusion criteria: Keratoconic eyes with Ã?· corneal opacities or central corneal scarring Ã?· corneal dystrophies Ã?· previous intra ocular or corneal surgery Ã?· patient with recurrent corneal erosion syndrome Ã?· local active infections/history of herpes keratitis Ã?· other eye diseases like glaucoma /retinal diseases/ cataract Ã?· localized or systemic autoimmune /immunodefieciency syndrome/severe atopic d/s Ã?· Diabetes (advanced and uncontrolled). Ã?· Advanced keratoconus (stage 3 and 4 Amslerââ?¬â??Krumeich). Ã?· Average keratometric reading >70D Ã?· Hydrops Ã?· Patients with grade 1-3 post-LASIK ectasia Ã?· Patients on with chances of changing refractions like on steroids therapy and pregnancy. Ã?· patients on Amiodarone, Sumatriptan, Isotretinoin therapy.

Design outcomes

Primary

MeasureTime frame
To anlyse the improvement in Ã?· uncorrected visual acuity Ã?· best corrected visual acuity Ã?· Manifest refraction Ã?· Corneal Tomography and topography to measure flat keratometry reading(K1), steep keratometry reading(K2), and Kmax in Keratoconus patients after Intra corneal ring segments insertionTimepoint: Preop - At baseline Postop - 1month, 3month,6month—

Secondary

MeasureTime frame
To analyse the improvement in Ã?· uncorrected visual acuity Ã?· best corrected visual acuity Ã?· Manifest refraction Ã?· Corneal Tomography and topography in Keratoconus patients after Intra corneal ring segments insertionTimepoint: post op - 1 month, 3 month, 6 month—

Countries

India

Contacts

Public ContactDr Husna K

Sankara Eye Hospital

siddharthanks@gmail.com9442257665

Outcome results

None listed

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