1 MCQs in Ophthalmology for NEET PG
A 63-year-old African-American male with a family history of glaucoma presents with an intraocular pressure of 28 mmHg. Gonioscopy reveals an open anterior chamber angle (grade 4 Shaffer). Fundoscopy demonstrates the structure marked **A** in the diagram—an enlarged cup with a cup-disc ratio of 0.8 and focal inferior neuroretinal rim notching that violates the ISNT rule. Humphrey 24-2 perimetry shows a corresponding superior arcuate scotoma in the Bjerrum area. Which of the following best describes the pathophysiologic significance of the focal inferior neuroretinal rim notching observed at the structure marked **A**?
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