Redness in the eye Cloudiness in the eye Swelling around the eyelid Tears Squinting Other changes in eye appearance

Symptoms due specifically to moon blindness often repeat over weeks and months. Recurrent symptoms should indicate whether or not you should suspect this condition. There may be sudden flares of inflammation followed by relatively clear and normal periods. Keep in mind that the inflammation may return. Seek vet treatment regardless of whether you believe the problem is moon blindness or another irritation. Non-chronic infections and other irritations still need medical treatment.

Cataracts will cause the eye to become cloudy and progressively more opaque. A whitening or clouding of the eye could indicate a cataract. [5] X Research source Your equine vet may recommend cataract removal surgery. This will help slow the deterioration of your horse’s vision, but it will not treat or cure the moon blindness.

All eye problems should be checked by a vet. Moon blindness can get worse very suddenly, so do not wait to call a vet. Your vet will be able to check for potential causes of moon blindness. Some, such as parasitic infection, may be chronic, while others, such a trauma, may cause acute moon blindness. [7] X Research source

Some eye medications must be applied every two hours. While treating your horse, do what you can to give it its medication at the right time. You may need to ask a friend, vet, or stable groom if they can give the medication when you are unable.

Keep in mind that while surgery may seem expensive, it will likely be cheaper in the long run than using medications. Surgery is also a faster option, and it will prevent long term discomfort for your horse.

MSM is a source of organic sulfur that can help with joints, muscles, and immune function.

If there isn’t a trainer in your area, you can still contact a center that specializes in blind horses and ask them for training tips and advice.