What type of ulcer involves a rupture of Descemet's membrane?

A Descemetocele is a specific type of corneal ulcer that results from the rupture of Descemet's membrane, which is the innermost layer of the corneal stroma. In this condition, the damage to the cornea is significant enough that the membrane becomes exposed, leading to a situation where the underlying aqueous humor can bulge through this defect, creating a characteristic dome-shaped structure.

This formation is a critical indicator of the depth and severity of the ulcer. When Descemet's membrane is compromised, it can lead to more extensive corneal damage and increase the risk of complications, such as ocular perforation, if not addressed urgently. Understanding this mechanism helps veterinarians identify the severity of corneal disease and formulates appropriate treatment plans.

Other types of ulcers, such as perforated ulcers and deep corneal ulcers, may involve tissue damage but do not specifically denote the rupture of Descemet's membrane as the defining feature, which is a key characteristic of a Descemetocele.