Yes, blurry and double vision can often be treated or improved, but the correct treatment depends on what is causing it. Please report both symptoms to your doctor or neurologist and arrange a complete eye examination with an ophthalmologist. A neuro-ophthalmologist may be especially helpful when the problem appears connected to Parkinson’s or the nervous system.

Parkinson’s can reduce blinking and tear production, causing dry eyes and blurry vision. Artificial tears, warm compresses, eyelid care, screen breaks, and prescription dry-eye treatments may help, but an eye doctor should recommend the appropriate products.

Double vision can occur when the eyes have difficulty working together. One common Parkinson’s-related cause is **convergence insufficiency**, in which the eyes have trouble turning inward together while reading or looking at something nearby. Possible treatments include:

* Prism lenses added to glasses
* Separate reading and distance glasses
* Eye exercises recommended by an eye specialist
* Temporary covering of one eye in selected situations
* Treatment of dry eyes or another underlying eye condition

Do not begin eye exercises or regularly cover one eye without professional guidance. Covering an eye reduces depth perception and may increase the risk of falling. Do not drive while experiencing uncontrolled double vision.

Blurry or double vision should not automatically be blamed on Parkinson’s. Other possible causes include an outdated eyeglass prescription, cataracts, glaucoma, diabetes, dry eye, medication effects, eye-muscle problems, or another neurological condition. Some Parkinson’s medications can also contribute, so ask your neurologist and pharmacist to review everything you take. Do not change medication on your own.

It may help to notice whether the problem occurs during OFF periods, after medication, while reading, when looking into the distance, or when you are tired. Also try covering one eye and then the other separately, and tell the eye doctor whether the double image disappears when either eye is covered. That information can help identify the type of double vision, but it does not replace an examination.

The encouraging answer is that treatments such as artificial tears, updated glasses, prism lenses, or treatment of the underlying condition may make a meaningful difference. Schedule an eye examination rather than trying to manage continuing blurry or double vision by yourself. [Parkinson’s Foundation](https://www.parkinson.org/understanding-parkins...)

Vision Changes

https://www.parkinson.org/understanding-parkinsons/non-movement-symptoms/vision