Femtosecond Laser Implantation of a 355- degree intrastromal corneal ring segment in keratoconus: three years follow up.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR201810796878908

Enrollment

Registered

2018-10-29

Start date

2014-10-01

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Eye Diseases

Interventions

355 degree kerarings

crosslinking of the cornea

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Age above 18 central keratoconus corneal thickness above >400um

Exclusion criteria

Exclusion criteria: corneal scars thin cornea <400um' previous refractive surgery associated retinal or lens pathology history of herpes simplex keratitis

Design outcomes

Primary

Measure	Time frame
improvement in vision, keratometry and refraction of the cornea in keratoconus	—

Secondary

Measure	Time frame
the high rate of ring extrusion	—

Countries

Egypt

Contacts

Public ContactHatem Ammar

Professor at ophthalmology department

htmammar@yahoo.com00201000008375

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Aug 9, 2026