Plaquenil ocular toxicity most commonly affects which retinal area?

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Prepare for the Certified Paraoptometric Assistant (CPOA) Exam. Study with extensive flashcards and multiple choice questions with explanations. Enhance your skills and knowledge to succeed.

Multiple Choice

Plaquenil ocular toxicity most commonly affects which retinal area?

Explanation:
Hydroxychloroquine (Plaquenil) retinopathy primarily involves the macula. The drug concentrates in the retinal pigment epithelium and photoreceptors near the fovea, leading to outer retinal and RPE damage in that central area. Over time this produces the characteristic macular changes, often described as bull’s-eye maculopathy, which affects central vision essential for detailed tasks. The other structures listed (optic nerve, lens, cornea) may be affected by Plaquenil in different ways, but the retina’s macular region is the most consistently impacted site.

Hydroxychloroquine (Plaquenil) retinopathy primarily involves the macula. The drug concentrates in the retinal pigment epithelium and photoreceptors near the fovea, leading to outer retinal and RPE damage in that central area. Over time this produces the characteristic macular changes, often described as bull’s-eye maculopathy, which affects central vision essential for detailed tasks. The other structures listed (optic nerve, lens, cornea) may be affected by Plaquenil in different ways, but the retina’s macular region is the most consistently impacted site.

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