Background
Lattice degeneration is a common, atrophic disease of the peripheral retina characterized by oval or linear patches of retinal thinning.[1, 2] The prevalence peaks by the second decade and is believed to be minimally progressive but may be uncommonly complicated by retinal detachment.[3]
Pathophysiology
The pathogenesis of lattice degeneration is not well understood, although several theories have been proposed. Regional developmental absence of the internal limiting membrane versus abnormal vitreoretinal traction dynamics appears to be the most cogent argument proposed.
Epidemiology
Frequency
United States
Lattice degeneration affects approximately 10% of the population and is bilateral in 30-50% of patients who are affected. A variable familial risk may be present on the basis of various autosomal dominant pedigrees.[4] An increased prevalence exists in myopic eyes, and its prevalence may be associated with increasing axial length, reaching 15% in the longest eyes.
International
No information is available regarding the international occurrence of lattice degeneration.
Mortality/Morbidity
See discussion of retinal detachment in History and Physical.
Race
No reported racial differences exist in lattice degeneration.
Sex
No reported sex differences exist in lattice degeneration.
Age
See History regarding early onset and progression with age.
Straatsma BR, Zeegen PD, Foos RY, et al. Lattice degeneration of the retina. XXX Edward Jackson Memorial Lecture. Am J Ophthalmol. May 1974;77(5):619-49. [Medline].
Byer NE. Lattice degeneration of the retina. Surv Ophthalmol. Jan-Feb 1979;23(4):213-48. [Medline].
Lewis H. Peripheral retinal degenerations and the risk of retinal detachment. Am J Ophthalmol. Jul 2003;136(1):155-60. [Medline].
Edwards AO, Robertson JE Jr. Hereditary vitreoretinal degenerations. In: Ryan SJ, ed. Retina. 3rd ed. St. Louis: Mosby; 2001:482-98.
Byer NE. Long-term natural history of lattice degeneration of the retina. Ophthalmology. Sep 1989;96(9):1396-401; discussion 1401-2. [Medline].
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Avitabile T, Bonfiglio V, Reibaldi M, et al. Prophylactic treatment of the fellow eye of patients with retinal detachment: a retrospective study. Graefes Arch Clin Exp Ophthalmol. Mar 2004;242(3):191-6. [Medline].
Wilkinson CP. Evidence-based analysis of prophylactic treatment of asymptomatic retinal breaks and lattice degeneration. Ophthalmology. Jan 2000;107(1):12-5; discussion 15-8. [Medline].
Wilkinson C. Interventions for asymptomatic retinal breaks and lattice degeneration for preventing retinal detachment. Cochrane Database Syst Rev. 2005;CD003170. [Medline].
Mastropasqua L, Carpineto P, Ciancaglini M, Falconio G, Gallenga PE. Treatment of retinal tears and lattice degenerations in fellow eyes in high risk patients suffering retinal detachment: a prospective study. Br J Ophthalmol. Sep 1999;83:1046-1049. [Medline].

