Which of the following is NOT a cause of vision loss?

Vision loss can result from various medical conditions that affect the eye or the nervous system. Hypertension, for example, can lead to hypertensive retinopathy, where high blood pressure damages the blood vessels in the retina, causing vision impairment. Multiple sclerosis may cause vision loss as it can damage the optic nerve, leading to optic neuritis, which can significantly affect sight. Diabetes is well-known for potentially causing diabetic retinopathy, where elevated blood glucose levels damage the retinal blood vessels, leading to vision problems.

In contrast, epilepsy primarily affects brain function and does not directly cause vision loss. While seizures can lead to temporary visual disturbances during an episode, they do not result in permanent vision impairment. Among the options presented, epilepsy stands out as the one condition that does not have a direct link to causing vision loss in the long term, making it the correct choice for this question.