Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Ten modern techniques for full-thickness macular hole repair compared

Official title: Vitreoretinal Surgery for Full-Thickness Macular Hole: A Comparative Study of Ten Techniques

Run by Kazakh Eye Research Institute · NCT07606404 · Data updated 2026-11-12

We are testing ten different surgical approaches to fix full-thickness macular holes in adults to see which method closes the hole best and gives the best vision.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment120 (estimated)
SponsorKazakh Eye Research Institute
Research network
Locations1 site (Almaty, Almaty)
StatusRecruiting
StartedMay 25, 2026
Main results expectedMay 27, 2027
Study endsMay 27, 2028
Registry record updatedJune 2, 2026
Trial IDNCT07606404 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with a full-thickness macular hole suitable for pars plana vitrectomy, across a range of hole sizes, including small holes.

Probably not a fit

Patients with holes unlikely to close with surgery or with conditions that could obscure functional gains may see limited benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This single-center, randomized study assigns eligible adults with full-thickness macular holes to one of ten PPV-based surgical techniques, with stratification by hole size. Surgeons perform the procedures during pars plana vitrectomy and standardized postoperative care is followed. Key outcomes include anatomical hole closure on OCT and visual acuity, assessed at Day 7, Month 1, and Year 1, along with safety and reoperation rates. The trial also evaluates adjuncts like autologous PRP and human amniotic membrane grafts as part of the interventions.

Why it matters

Potential benefit: If successful, the study could identify a surgical approach that improves the likelihood of hole closure and better vision for patients.

How similar studies have gone: Prior studies suggest favorable results with advanced ILM flap techniques, but this trial explores multiple modern approaches in a randomized, controlled manner.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Adults aged ≥18 years.

Full-thickness macular hole (FTMH) eligible for pars plana vitrectomy (PPV).

Symptom duration ≤12 months.

Clear ocular media sufficient for high-quality OCT imaging.

No prior pars plana vitrectomy in the study eye.

No severe foveal atrophy on OCT.

Able and willing to comply with postoperative positioning and follow-up visits.

Written informed consent provided.

Exclusion Criteria:

A. Etiology-Related / Secondary Macular Holes:

Traumatic macular hole.

High myopia with posterior staphyloma (axial length \>28 mm and/or spherical equivalent ≤-8.0 D).

Diabetic tractional retinal detachment (TRD) or significant tractional maculopathy.

Retinal vascular occlusion-related macular hole.

Uveitis-related macular hole.

Advanced age-related macular degeneration (AMD) with foveal atrophy.

B. Prior Interventions:

Any prior pars plana vitrectomy in the study eye.

C. Ocular Conditions That May Affect Outcomes or Safety:

Active or recent ocular infection or inflammation (e.g., uveitis, endophthalmitis, keratitis).

Uncontrolled glaucoma (intraocular pressure \>28 mmHg despite treatment).

Media opacity precluding adequate OCT (e.g., dense cataract or corneal opacity).

Geographic atrophy involving the fovea.

Where it's running

  • Kazakh Eye Research Institute
    Almaty, Almaty, Kazakhstan
    Recruiting

Study contacts

  • Principal investigator: Sanzhar Sambet Sambet, MD — Kazakh Eye Research Institute
  • Study coordinator: Sanzhar Sambet, MD
  • Email: sanzhrs@gmail.com
  • Phone: +77758719834

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.