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Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

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Related Experiment Video

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CHOROIDAL NEOVASCULARIZATION AFTER MACULAR PLUG SURGERY.

Alberto Quarta1, Lisa Toto, Maria Ludovica Ruggeri

  • 1Department of Sciences, Ophthalmology Clinic, National Center of High Technology in Ophthalmology, Gabriele D'Annunzio University, Chieti, Italy.

Retinal Cases & Brief Reports
|May 22, 2025
PubMed
Summary
This summary is machine-generated.

Choroidal neovascularization (CNV) can occur after macular plug surgery. Inverted internal limiting membrane flap surgery showed poor visual outcomes due to exudative activity and fibrosis, while human amniotic membrane (hAM) procedures had varied results.

Keywords:
ILM inverted flapchoroidal neovascularizationhuman amniotic membranemacular hole

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Area of Science:

  • Ophthalmology
  • Retinal Surgery
  • Vascular Biology

Background:

  • Macular plug surgery is used for full-thickness macular holes.
  • Choroidal neovascularization (CNV) is a potential complication.
  • This study investigates CNV after inverted internal limiting membrane flap and human amniotic membrane (hAM) procedures.

Purpose of the Study:

  • To report and characterize choroidal neovascularization (CNV) following macular plug surgery.
  • To detail outcomes in cases using inverted internal limiting membrane flaps versus hAM grafts.

Main Methods:

  • Retrospective, observational case series.
  • Multimodal imaging: OCT, OCT angiography, fluorescein angiography/ICGA.
  • Analysis of CNV characteristics and visual acuity.

Main Results:

  • CNV occurred in the fovea in all four cases (two refractory, two primary macular holes).
  • Inverted flap cases had high exudative/fibrotic potential with limited anti-VEGF response.
  • hAM cases showed contained or late-leaking CNV; visual acuity was poor (20/120-20/200).

Conclusions:

  • CNV after inverted flap surgery is associated with foveal involvement and poor vision due to exudation and fibrosis.
  • Close monitoring for CNV is crucial in macular plug surgery patients, especially with inverted flaps.
  • CNV within hAM grafts can occur without significant exudation, linked to peri-hAM atrophy.