Clinical Outcomes of Two Symmetrical Kera-rings Implantation in Grade Three Keratoconus

Sohag University

Status: Completed

Conditions: Cornea Ectasia

Treatments: Device: Intracorneal rings

Study type: Interventional

Funder types: Other

Identifiers

NCT06498570

Soh-MED-24-05--03PD

Details and patient eligibility

About

Clinical Outcomes of Two Symmetrical Kera-rings Implantation in Grade Three Keratoconus

Full description

a retrospective non- randomized controlled clinical study. The study included twenty-three grade 3 keratoconic eyes of twenty-three patients, the keratoconus staging was based on Amsler-Krumeich classification The ICRS surgery was performed with the patient under topical anesthesia. A tunnel channel was created by femtosecond laser using a 60-kHz infrared neodymium glass femtosecond laser at a wavelength of 1053 nm (Abbott Laboratories Inc., Abbott Park, Illinois, USA). Two symmetrical kerarings (Mediphacos Inc., Belo Horizonte, Brazil), were implanted in all cases with 160° arc and 0.25, 0.30 mm according to corneal thickness in implantation site. After surgery, the patients had a full ocular evaluation on days 1, 7, and 14, and again after a month. For a period of 1-year, corneal topography readings were taken quarterly.

Enrollment: 23 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• stable keratoconus.
• corneal cross-linking performed at least 6 months.
• contact lens intolerance
• minimum corneal thickness of 350 μm at the thinnest point (TP)
• mean keratometry (K mean) value less than 59 D

Exclusion criteria

• any other associated ocular or systemic pathology could affect the vision.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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23 participants in 1 patient group

grade 3 keratoconic eyes Grade 3 eyes with stable keratoconus

Other group

Description:

grade 3 keratoconic eyes Grade 3 eyes with stable keratoconus

Treatment:

Device: Intracorneal rings