Lattice Degeneration

• Histopathologically represents localized areas of inner retinal atrophy with loss of the internal limiting membrane, adherent vitreous to the edges of the lesion with an overlying pocket of liquefied vitreous, and sclerosis of the remaining retinal vessels.
• Lattice degeneration is seen in approximately 10% of the population, but rarely leads to rhegmatogenous retinal detachments.
• However, lattice degeneration is present in 20-40% of rhegmatogenous detachments.

Radial Perivascular Lattice Degeneration

• Lattice lesions with retinal thinning and pigmentary disturbances along retinal vessels may be referred to as radial perivascular chorioretinal degeneration.
• Typically seen more posteriorly along retinal vessels in comparison to traditional peripheral lattice degeneration.
• May be an incidental finding, as in this case, or seen with hereditary vitreoretinal degenerations such as Stickler syndrome in which there is a high risk for rhegmatogenous retinal detachment.