Lattice degeneration
Lattice degeneration: 5% to 10% of the population, varies in extensiveness but 30% of all RRDs. It is commoner in myopes and connective tissue syndromes ( Stickler). usually asymptomatic. typically detected as an incidental finding during routine ophthalmoscopy Thin, well-demarcated, pigmented ovoid patches of retina typically circumferential but may be radial ( in Stickler). Within the involved area, there may be sclerotic vessels or atrophic holes. Although usually darkly pigmented, it may appear hypo-pigmented The vitreous overlying lattice degeneration is liquefied while on the edges of lattice, there is firm vitreoretinal adhesion Complications: Retinal tears may occur at posterior margin and at the ends of areas of lattice (due to strong vitreous adhesion) retinal detachment. in only 1% of patients with lattice degeneration. Prophylactic laser treatment is not usually performed in asymptomatic eyes laser treatment of lattice is only recommended