What condition involves blood accumulation behind the cornea of the eye?

Hyphema is the correct condition that involves blood accumulation behind the cornea of the eye. Specifically, hyphema refers to the presence of blood in the anterior chamber of the eye, which is the space between the cornea and the iris. This condition can occur due to trauma, surgical complications, or diseases affecting the eye, leading to visible bleeding that may obstruct vision and cause other complications if not treated properly.

The other conditions listed are related to blood and hemorrhage but affect different parts of the eye or other bodily systems. Subconjunctival hemorrhage pertains to bleeding underneath the conjunctiva, which can present as a bright red patch on the white part of the eye but does not involve the anterior chamber where hyphema occurs. Uveitis is an inflammation of the uvea, which includes the iris, and may lead to symptoms such as redness, pain, and vision change but does not directly involve blood accumulation behind the cornea. Hemorrhagic cystitis refers to inflammation and bleeding in the bladder, unrelated to eye conditions. Understanding the specificity of these terms helps clarify how hyphema directly pertains to blood accumulation in the eye.