Collection of which of the following in anterior chamber, is known as hyphaema: March 2011, March 2013
**Core Concept**
Hyphaema refers to the accumulation of blood in the anterior chamber of the eye, typically as a result of trauma or surgical complications. This condition can lead to increased intraocular pressure, vision disturbances, and other complications if left untreated.
**Why the Correct Answer is Right**
Hyphaema occurs when blood from the iris or ciliary body leaks into the anterior chamber, often due to a rupture of the iris or ciliary body vessels. The blood accumulates in the anterior chamber, which is the space between the cornea and the iris. The presence of blood in the anterior chamber can cause increased intraocular pressure, discomfort, and vision disturbances.
**Why Each Wrong Option is Incorrect**
**Option A:** is incorrect because it would refer to a collection of fluid in the posterior chamber, not the anterior chamber. The posterior chamber is the space behind the iris and in front of the vitreous humor.
**Option B:** is incorrect because it would refer to a collection of pus in the eye, which is a sign of endophthalmitis, a severe infection of the inner eye.
**Clinical Pearl / High-Yield Fact**
It's essential to differentiate between hyphaema and other conditions that may present with blood in the anterior chamber, such as angle closure glaucoma or uveitis.
**Correct Answer: C. Blood**