Challenges In Early Glaucoma Detection

Area of Science:

• Ophthalmology
• Optic Neuropathy
• Retinal Ganglion Cell Biology

Background:

• Glaucoma, a leading cause of optic neuropathy, involves progressive retinal ganglion cell loss and optic nerve head excavation.
• It results from complex cellular processes and factors causing accelerated ganglion cell apoptosis.

Purpose of the Study:

• To investigate the association between myopia and glaucomatous optic disc changes.
• To analyze the relationship between the degree of myopia and optic disc characteristics in glaucoma patients.

Main Methods:

• A prospective-retrospective, comparative, randomized clinical trial involving 150 patients (97 female, 53 male; age 18-80).
• Assessment of myopia, optic disc size, oblique disc size, and parapapillar atrophy (alpha and beta zones).

Main Results:

• Patients with high myopia and tilted optic discs had large discs (4.05 ± 0.65).
• Myopia degree linearly declined with increasing oblique disc size.
• Higher myopia in glaucoma patients correlated with frequent parapapillar atrophy (alpha and beta zones).
• Parapapillar changes were most prevalent in patients with myopia and other conditions (62%), followed by glaucoma only (56%).

Conclusions:

• Existing studies on myopia and open-angle glaucoma are largely observational.
• A systematic approach to estimate the myopia-glaucoma association is lacking.
• The Disc Damage Likelihood Scale (DDLS) shows strong correlation with visual field loss in assessing glaucomatous optic disc damage.