What is a common symptom experienced by those with ocular migraines?

Visual distortions are a hallmark symptom of ocular migraines, which can present as temporary disturbances in vision. These distortions often include various phenomena such as seeing zigzag lines, flashes of light, or blind spots. These visual changes are typically temporary and can last anywhere from a few minutes to about an hour before normal vision returns.

Ocular migraines are distinct because they primarily affect visual perception without the presence of a significant headache, which may accompany other types of migraines. While some of the other options listed may relate to different ocular or visual conditions, they do not characterize the experience of those suffering from ocular migraines. Increased eye pressure is related to conditions like glaucoma, color blindness is a genetic condition not associated with migraines, and night blindness pertains to difficulties seeing in low light, which also has a different etiology.