Comparative Study between Implantable Collamer Lens Implantation and Refractive Lens Exchange in Patient with High Myopia

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

PACTR

Registry ID

PACTR202507649185134

Enrollment

Registered

2025-07-28

Start date

2017-10-10

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Eye Diseases

Interventions

Implantable Collamer Lens Implantation

Refractive lens exchange

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with myopia equal to or higher than -6 D, astigmatism less than -1.00 D presence of a contraindication to the corneal refractive surgery clear cornea, anterior chamber (AC) depth > 2.80 mm in cases of ICL implantation no detected eye pathology (maculopathy, cataract, uveitis, or glaucoma).

Exclusion criteria

Exclusion criteria: AC depth < 2.80 mm in cases of ICL, age less than 40 years, astigmatism more than -1.00 D, presence of any ocular pathology (Choriodal Neovasculariztion (CNV), macular scar, cataract, uveitis, staphyloma, corneal opacities or glaucoma) amblyopia (moderate to deep).

Design outcomes

Primary

Measure	Time frame
Uncorrected Distance Visual Acuity (UDVA), Best-Corrected Distance Visual Acuity (BCDVA), AND Refractive Accuracy	—

Secondary

Measure	Time frame
Intraocular Pressure (IOP), Anterior Chamber Depth (ACD), Incidence of Complications, including cataract formation, and posterior capsular opacification	—

Countries

Egypt

Contacts

Public ContactAhmed Mohammed

Professor of ophthalmology

draakma2000@gmail.com+201032204004

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026