Lattice Degeneration

Lattice degeneration of the retina is the most common of all hereditary vitreo-retinal degenerations in about 6-8% of the general population, equal in males and females, with no racial preference and found more commonly in myopic eyes. Symptoms include flashing lights, floating spots in front of your vision, or a veil coming down over your vision.

The clinical features in the peripheral retina include snail track degeneration, retinal erosion, local retina excavation, and vitreous base excavation. Specifically, they are localized round, oval or linear retinal thinning, pigmentation, whitish-yellow surface flecks, round, oval or linear white patches, round, oval or linear red craters, small atrophic round holes, branching white lines, yellow atrophic spots, and tractional tears at the ends or posterior margins of the lesions. The vitreous over the lattice is liquefied with the margins of the lesions histologically characterized by exaggerated vitreous retinal attachments.

Patients who are at greatest risk to develop retinal detachments are given appropriate prophylactic treatment. Conditions recommended for treatment are symptomatic tears at the lattice edge or on the posterior margin of the patch of lattice, retinal detachment in the fellow eye and vitreous traction on lattice with atrophic holes.

Cryotherapy or laser photocoagulation is used depending on the location of the lattice requiring treatment.