Macular Holes
Conditions
Keywords
Inverted Internal Limiting Membrane Flap Technique, Large Macular Hole, Macular hole surgery
Brief summary
This study compares the anatomical and visual outcomes in a large series of patients affected by idiopathic macular holes larger than 400 µm treated using pars plana vitrectomy and gas tamponade combined with internal limiting membrane (ILM) peeling or the inverted internal limiting membrane flap technique. A part of the participants will receive internal limiting membrane peeling,whil the other will receive the inverted internal limiting membrane flap technique.
Detailed description
Vitrectomy is the standard treatment for idiopathic macular holes (IMHs) and is combined with removal of the internal limiting membrane (ILM) to improve anatomical outcomes.However, surgical closure is not achieved after a single operation in all cases, and patients with long-standing MHs or highly myopic eyes are challenging to treat.Various surgical strategies have been introduced to improve postoperative outcomes for these cases. Michalewska et al. have reported an inverted ILM flap technique for large MHs. The ILM around the MH was left to cover or fill the hole and showed a better anatomical closure rate and visual outcome than ILM peeling for large MHs. Nevertheless, the functional and anatomic outcomes of the ILM flap technique have not been investigated as extensively as the ILM peeling technique and have yet to be confirmed by research comparing the ILM flap technique with the conventional procedure.
Interventions
PROCEDUREthe Cover group
The internal limiting membrane around the MH was left to cover the hole
PROCEDUREthe Fill group
The internal limiting membrane around the MH was left to fill the hole
PROCEDUREthe peeling group
the internal limiting membrane was discarded
Sponsors
Second Affiliated Hospital, School of Medicine, Zhejiang University
Study design
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* idiopathic MHs, a minimum hole diameter of ≥ 400 μm, and follow-up for at least 3 months after vitrectomy.
Exclusion criteria
* High myopia (≥6 diopters,AL≥26.5mm), increased intraocular pressure (IOP, \>21 mm Hg) or glaucoma, severe cataract, severe systemic conditions that prevent surgery, and history of ocular trauma, intraocular inflammation, retinal vascular disease, or previous ocular surgery.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline best-corrected visual acuity at 3 months | at 3 months after surgery | best-corrected visual acuity were gauged with EDTRS charts,recorded in decimals and was converted to logarithm of the minimum angle of resolution units for statistical analysis |
| visual function | at 3 months after surgery | visual function were gauged with national eye institute visual function questionnaire-25((NEI VFQ-25) |
| Change from Baseline visual function at 3 months | at 3 months after surgery | visual function were gauged with national eye institute visual function questionnaire-25((NEI VFQ-25) |
| MH status | at 3 months after surgery | MH status (open, flat open or closed) |
| IS/OS line interruption width | at 3 months after surgery | IS/OS line interruption width were gauged with spectral-domain optical coherence tomography |
| Change from Baseline IS/OS line interruption width at 3 months | at 3 months after surgery | IS/OS line interruption width were gauged with spectral-domain optical coherence tomography |
| Baseline best-corrected visual acuity | at 3 months after surgery | best-corrected visual acuity were gauged with EDTRS charts,recorded in decimals and was converted to logarithm of the minimum angle of resolution units for statistical analysis |
Countries
China
Contacts
Primary ContactZhiyong Zhang, docter
Outcome results
None listed