Expert Q&A for How to Diagnose Feline Cataracts

There are several possible reasons why eyes are cloudy. First look to see if it's the cornea that's misty, or if the cloudiness is within the eye. Causes include dry eye, glaucoma, long term irritation, a prolapsed lens, high blood pressure, or a cataract.

Cataracts are not painful; however, they do interfere with vision. A cataract is a cloudy lens, so light can't pass through to react with the retina. Thus, the cat is not in pain but may be confused or disorientated at times.

Try flicking your finger quickly towards the eye. This is known as the "menace reflex" because the normal reaction is to blink when something threatens the eye. If the cat can see, they should blink. However, be careful not to touch the whiskers as this will also make the cat blink.

Cataract surgery needs to be undertaken by a specialist veterinary ophthalmologist. The procedure requires the use of expensive equipment and this is reflected in the cost. Expect to pay several thousand dollars for this procedure.