Several cases of malignant glaucoma are presented and a new concept is suggested from these cases and a review of the literature. Malignant glaucoma is redefined as a distinct type of angle closure with a forward movement of the lens and a direct closure of the angle occurring with or without glaucoma surgery. The term direct lens block angle closure is suggested to differentiate it from the more common pupillary block angle closure mechanism. The two types share common factors in their pathogenesis with the essential difference determined by the degree of the forward movement of the lens. The clinical differentiation between the two types of angle closure before surgery is discussed.
Levene R. A New Concept of Malignant Glaucoma. Arch Ophthalmol. 1972;87(5):497-506. doi:10.1001/archopht.1972.01000020499002