Which of the following is listed as a potential cause of macular fluid buildup in CSR education?

• A. OTC/Rx steroid use
• B. Glaucoma
• C. Myopia
• D. Retinal detachment

Answer: (A)

Central serous retinopathy involves fluid leaking from the choroid into the subretinal space under the macula because the retinal pigment epithelium (RPE) is not handling fluid properly. A well-established risk factor for this leakage is corticosteroid exposure, whether from over-the-counter preparations or prescribed medications. Steroids can increase choroidal vascular permeability and disrupt the RPE’s pumping ability, making posterior pole fluid accumulation more likely and leading to the serous detachment seen in CSR.

Glaucoma is an optic nerve condition and doesn’t drive the serous fluid leakage under the retina seen in CSR. Myopia doesn’t directly cause CSR-related macular fluid buildup, though it has its own separate retinal implications. Retinal detachment due to a tear is a different process from CSR’s serous detachment; CSR specifically involves fluid accumulation without a retinal break. That’s why steroid use is highlighted as a potential cause in CSR education.