Mechanical versus femtolaser corneal flaps assessment

Assessment of corneal flap thickness and symmetry in the optical center using anterior segment optical coherence tomography; mechanical versus femtolaser flaps

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR201708002498199

Enrollment

160

Registered

2017-08-03

Start date

2016-05-03

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 Refractive errors

Interventions

Corneal flap creation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Myopic patients with refraction less than -6.00 D, astigmatism less than -3.00 D and a stable keratometry after cessation of soft contact lens wear for at least 2 weeks or rigid gas-permeable contact lens wear for at least 4 weeks with K reading value ranging between 41.50 and 45.00 D.

Exclusion criteria

Exclusion criteria: The patients never had a previous kerato-refractive surgery and the corneal pachymetry was ¿ 520 µm at the thinnest location. Patients who do not fit the inclusion criteria or with history of herpetic eye disease, corneal dystrophy, corneal scarring because of infection or trauma, keratoconus, severe dry eye, collagen vascular disease, cataract, retinal disease, diabetes mellitus, pregnancy and who showed intraoperative and postoperative complications.

Design outcomes

Primary

Measure	Time frame
Corneal flap thickness	—

Secondary

Measure	Time frame
Corneal flap symetry	—

Countries

Egypt

Contacts

Public ContactAsmaa Ibraheem

khsemsem@yahoo.com201002415485

Outcome results

None listed

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