The patient presents with acute pain and redness of eye with diminished vision and vomiting. The finding shown is:
**Core Concept**
The patient's presentation suggests a diagnosis of acute angle-closure glaucoma, a medical emergency characterized by sudden increase in intraocular pressure (IOP) leading to optic nerve damage. This condition is often precipitated by pupillary dilation in a narrow anterior chamber.
**Why the Correct Answer is Right**
The given finding is likely a photograph showing a mid-dilated pupil with a shallow anterior chamber, which is a hallmark of acute angle-closure glaucoma. The increased IOP causes corneal edema, leading to the patient's symptoms of pain, redness, and diminished vision. The vomiting is likely a result of the severe headache associated with this condition.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely a photograph showing a normal eye, which would not explain the patient's symptoms of acute pain, redness, and diminished vision.
**Option B:** This option is likely a photograph showing a patient with a corneal ulcer, which may cause redness and pain, but would not explain the diminished vision or the mid-dilated pupil.
**Option C:** This option is likely a photograph showing a patient with a vitreous hemorrhage, which may cause diminished vision, but would not explain the acute onset of pain and redness.
**Clinical Pearl / High-Yield Fact**
In cases of suspected acute angle-closure glaucoma, prompt recognition and treatment are crucial to prevent permanent vision loss. The patient should be immediately referred to an ophthalmologist for further management, which may include topical and systemic medications, as well as surgical intervention if necessary.
**Correct Answer:** C.