**Core Concept**
The question is testing the understanding of the clinical presentation of angle-closure glaucoma, a medical emergency characterized by a sudden increase in intraocular pressure (IOP) due to blockage of the drainage angle in the eye.
**Why the Correct Answer is Right**
Angle-closure glaucoma occurs when the iris is pushed forward, blocking the trabecular meshwork and preventing aqueous humor from draining out of the eye. This results in a rapid increase in IOP, leading to symptoms such as severe eye pain, headache, nausea, vomiting, and vision loss. The veically oval mid-dilated pupil is a classic sign of angle-closure glaucoma, as the iris is pushed forward and the pupil becomes irregularly shaped. The shallow anterior chamber is another key feature, as the increased IOP pushes the iris forward and reduces the space between the cornea and the iris.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because angle-closure glaucoma is not typically associated with a shallow anterior chamber in infancy or early childhood, as the iris is not fully developed and the drainage angle is not fully formed.
**Option B:** This option is incorrect because open-angle glaucoma is characterized by a gradual increase in IOP due to a slow blockage of the drainage angle, and does not typically present with a veically oval mid-dilated pupil or shallow anterior chamber.
**Option C:** This option is incorrect because uveitis is an inflammatory condition of the uvea, and while it can cause increased IOP, it is not typically associated with a veically oval mid-dilated pupil or shallow anterior chamber.
**Clinical Pearl / High-Yield Fact**
The "V" shape of the pupil in angle-closure glaucoma is due to the iris being pushed forward and the pupil becoming irregularly shaped, making it a classic sign of this medical emergency.
**Correct Answer: D. Acute angle-closure glaucoma**
Free Medical MCQs Β· NEET PG Β· USMLE Β· AIIMS
Access thousands of free MCQs, ebooks and daily exams.
By signing in you agree to our Privacy Policy.