American Board of Ophthalmology (ABO) Practice Exam

Night blindness is not a symptom of glaucoma. Glaucoma primarily affects the optic nerve and often leads to characteristic symptoms such as peripheral vision loss, which is caused by damage to the areas of the eye responsible for peripheral vision. Severe eye pain can occur, particularly in acute angle-closure glaucoma, where there is a sudden increase in intraocular pressure leading to significant discomfort and necessitating urgent treatment. Increased intraocular pressure is a key feature of glaucoma, as it is one of the main risk factors that can lead to optic nerve damage over time.

In contrast, night blindness, or nyctalopia, is generally associated with conditions that affect rod photoreceptors or other retinal issues, rather than with glaucoma itself. Thus, while peripheral vision loss, severe eye pain, and increased intraocular pressure are closely related to the disease process of glaucoma, night blindness does not fall within the typical symptom spectrum for this condition.