Seeing Double? Here’s What Double Vision Can Mean

Double vision — seeing two overlapping or side-by-side images of a single object — can range from a minor, temporary issue to a sign of something that needs urgent attention. The key is understanding which type you’re dealing with.

Two broad categories

• Monocular diplopia (double vision in just one eye, even with the other eye closed) — often related to the eye itself, such as early cataract changes or corneal irregularities
• Binocular diplopia (double vision that resolves when either eye is closed) — usually related to eye muscle imbalance or alignment issues, and occasionally to nerve-related causes

Why prompt evaluation matters

Sudden-onset double vision, especially when it appears alongside other symptoms like headache, drooping eyelid, or general weakness, should be assessed without delay — it can occasionally point to causes beyond the eye itself that need broader medical attention alongside an eye exam.

What we check

Eye alignment, muscle function, and a full eye health assessment to determine whether the cause is eye-related or needs referral for broader evaluation.

Don’t dismiss double vision as something that will simply pass — get it properly assessed. Book a consultation if you’re experiencing double vision, especially if it started suddenly.