1 MCQs in Ophthalmology for NEET PG
A 14-year-old boy presents to the retina clinic with a complaint of gradual blurring of vision in both eyes over the past 2 years. Fundoscopy reveals a homogeneous yellow-orange lesion at the fovea bilaterally, as marked **A** in the diagram. His father has a similar lesion and wears glasses for myopia. Visual acuity is 20/40 in both eyes. Electro-oculography (EOG) shows an Arden ratio of 1.2 (normal >1.8), while full-field electroretinography (ERG) is normal. Which of the following best explains the pathophysiology underlying the lesion marked **A**?
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