Lattice degeneration is a condition that occurs in the retina of the eye, where thinning of the retina causes it to sag and appear lattice-like. Other synonyms for the condition include retinal lattice, retinal thinning, and retinal hole formation. While lattice degeneration may not always cause vision loss, it can increase the likelihood of developing retinal tears or detachments, which can lead to severe vision loss. The condition is often asymptomatic, making it difficult to diagnose without regular eye exams. People with a family history of lattice degeneration, high myopia, or previous eye injuries are at increased risk and should have regular eye exams to detect any changes in their retina.