What degree of myopia increases retinal detachment risk?

Myopia -6D: 5-10x baseline RD risk; myopia >-10D (high): 20-40x baseline risk; lifetime RD risk ~2-3% for myopia >-6D vs 0.06% general population; annual fundus examination recommended for high myopes.

Which retinal detachment type is most urgent?

Macula-off RD (macula detached): requires surgery within 24-72 hours; visual recovery inversely proportional to duration of macular detachment; macula-on RD: surgery within 24h recommended to prevent macular involvement; all RD require same-day/emergency ophthalmology assessment.

When is pneumatic retinopexy appropriate for RD repair?

Pneumatic retinopexy (intravitreal gas + laser): single superior break, phakic, cooperative patient; success rate 70-80% primary repair; requires patient positioning; inferior breaks: NOT appropriate for pneumatic retinopexy (gas rises superiorly).

What are indications for primary vitrectomy vs scleral buckle for RD?

Vitrectomy preferred: PVR grade C, posterior breaks, media opacity, previous buckle failure; scleral buckle preferred: young phakic patient, inferior detachment, pediatric (preserve crystalline lens); both approaches have equivalent anatomic success for uncomplicated RD.

What is PVR and how does it complicate RD repair?

Proliferative vitreoretinopathy (PVR): fibrocellular membranes on retinal surface causing traction and fixed folds; Grade C (fixed folds) requires membrane peeling during vitrectomy; primary repair failure (15-25%) main cause of PVR; silicone oil tamponade for severe PVR cases.

Rhegmatogenous Retinal Detachment Risk and Surgical Approach

Calculates rhegmatogenous retinal detachment risk from myopia degree, lattice degeneration extent, prior surgery, and macula status, guiding choice between pneumatic retinopexy, scleral buckle, and pars plana vitrectomy.

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