PREVALENCE OF LATTICE DEGENERATION IN AXIAL MYOPIA

Abstract

Lattice degeneration is an important predisposing factor for retinal detachment. A cross sectional study of
221 patients and 405 eyes with axial myopia of 25mm (–3.oo diopters) or more, was conducted with an
objective to find out prevalence of lattice degeneration of the retina among them. Of 221 patients, 48 (21.7%)
had the lattice degeneration consisting of 35 uniocular (72.9%) and 13 binocular patients (27.1%). Of 139
males, 36 (25.89%) had lattice degeneration; of 82 females, 12 (14.63%) had lattice degeneration (RR=1.26;
95%CI=1.03-1.55; p=0.049). Axial length was from 25mm to 35.77mm (mean=27.63mm, SD 1.98). The
greatest prevalence of lattice degeneration.9% (16 of 73 eyes) was found in eyes with axial length of 26mm
to 26.99 mm (-6.0D to –8.97.0D), and the least incidence was 8.6% (8 of 93 eyes) in eyes with axial length
25mm to 25.99 mm (-3.0 D to –5.97.0 D). Over all prevalence of lattice degeneration was 15% (61 of 405
eyes) of eye(s) with axial length of 25 mm (-3.0 D) or more. In the age groups below 40 years, the prevalence
of lattice degeneration was highest 85.24% (59 of 61 eyes). The lattice degeneration of retina is more
prevalent in males of age less than 40 years with moderate axial myopia.
Key Words: Lattice degeneration, axial myopia, retinal detachment.