- The formation of thick, coarse, dense membrane which
causes marked distortion of the macula that may sometimes elevates
the fovea off the pigment epithelium. (puckering the macula)
- Clinical features:
- Symptoms:
- Markedly decreased vision or loss of central
vision
- Metamorphopsia
- Diplopia
- Central photopsia or macropsia
- Signs:
- Thick, opaque membrane may obscure the visibility
of the macula
- Foveal ectopia
- Commonly causes dragging of the paramacular retinal
vessels
- Chronic cases may be complicated with retinal pigment
epithelium changes, retinal vascular leakage, macular hole, macular
edema, hemorrhage, foveal cyst or choroidal neovascularization.
- Fluorescein angiogram demonstrates:
- Dragged perifoveal vessel
- Dye leakage
- Management: vitreoretinal surgery should be considered
when significant visual reduction (BCVA of < 20/50) has occurred.
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