A patient with detachment of retina with ph-otopsia with floaters in the eye. Diagnosis is
**Core Concept**
The patient's symptoms suggest a retinal detachment, which is a medical emergency characterized by the separation of the retina from the underlying retinal pigment epithelium. This can lead to vision loss if not promptly treated. The symptoms of photopsia (flashing lights) and floaters are indicative of traction on the retina, which can cause retinal tears or detachment.
**Why the Correct Answer is Right**
Retinal detachment is often caused by retinal tears, which can be due to trauma, age-related changes, or retinal diseases such as retinal detachment, retinoschisis, or epiretinal membrane. The traction on the retina can cause the formation of retinal tears, which can progress to retinal detachment. The diagnosis of retinal detachment is confirmed by fundoscopic examination, which shows a retinal tear or detachment.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because retinal detachment is not typically associated with a red, painful eye, which is more characteristic of acute angle-closure glaucoma.
**Option B:** This option is incorrect because vitreous hemorrhage is a separate condition characterized by bleeding into the vitreous gel, which can cause floaters and vision loss, but it is not the same as retinal detachment.
**Option C:** This option is incorrect because diabetic retinopathy is a condition characterized by damage to the blood vessels in the retina, which can cause vision loss, but it is not typically associated with the symptoms of photopsia and floaters.
**Clinical Pearl / High-Yield Fact**
Retinal detachment is a medical emergency that requires prompt treatment to prevent vision loss. The "Amsler grid" test can be used to detect retinal detachment, which consists of a grid of horizontal and vertical lines that can help detect distortions in vision.
**Correct Answer:** C.