What clinical condition is characterized by 360 degree posterior synechia?

The clinical condition characterized by 360-degree posterior synechia is uveitis. Posterior synechia refers to the adhesion of the iris to the lens capsule, which can occur when inflammation causes the iris to become sticky. In uveitis, the inflammation can affect different parts of the uveal tract, which includes the iris, ciliary body, and choroid, leading to significant changes in the eye's internal structure.

When inflammation is severe and widespread, it can lead to a generalized adhesion that encircles the lens, resulting in the characteristic 360-degree posterior synechia. This condition typically arises from various causes, including autoimmune disorders, infections, or trauma that can provoke such extensive inflammation.

Other options, while they may present distinct clinical signs, do not typically cause this specific type of adhesion. Glaucoma primarily involves increased intraocular pressure and changes related to the optic nerve and does not lead to posterior synechia in the same manner as uveitis. Regular keratitis affects the cornea and does not cause iris adhesion, and conjunctival infections are associated with the conjunctiva and do not typically lead to the uveal tract involvement necessary for posterior synechia. Hence, uveitis is uniquely associated with