A young male presents with central scotoma in left eye. His right vision showed 6/6 vision. On examination, in the left eye, there was focal foveal detachment in fundoscopy. What would be the next step?
**Core Concept**
The patient's presentation of central scotoma in one eye, with a focal foveal detachment on fundoscopy, suggests a diagnosis of central serous chorioretinopathy (CSC). CSC is a condition characterized by the accumulation of fluid under the retina, leading to a detachment of the retinal pigment epithelium (RPE) and photoreceptor layer.
**Why the Correct Answer is Right**
The correct diagnosis of CSC necessitates a thorough investigation to rule out other causes of central visual loss, such as retinal artery occlusion or central retinal vein occlusion. The focal foveal detachment seen on fundoscopy is a hallmark of CSC. Given the patient's young age and the unilateral nature of the condition, CSC should be considered as a primary diagnosis. The next step would be to perform an optical coherence tomography (OCT) scan to confirm the diagnosis and assess the extent of the retinal detachment.
**Why Each Wrong Option is Incorrect**
**Option A:** Immediate fluorescein angiography is not the next step, as it is an investigative tool that may be performed later to assess the leakage of fluid from the choroid.
**Option B:** Systemic corticosteroids may be considered in the treatment of CSC, but they are not the immediate next step in management.
**Option C:** Laser photocoagulation may be used in the treatment of CSC, but it is not the initial step in management.
**Clinical Pearl / High-Yield Fact**
Central serous chorioretinopathy often resolves spontaneously within 3-6 months, but prompt treatment with laser photocoagulation or intravitreal corticosteroids may be necessary to prevent visual loss.
**Correct Answer:** B.