Cloudy eyes in dogs are caused by inflammation of the cornea, a condition that is medically referred to as keratitis. Keratitis causes squinting, avoiding light, pawing at the eyes, excessive tearing and loss of transparency.
There are various types of keratitis, all of which have the potential to lead to blindness if left untreated. Dogs with keratitis must be taken to a vet for assessment right away.
Ulcerative keratitis causes corneas that appear hazy and dull before turning cloudy and then turning an opaque, milky white color. The condition is painful and occurs often as a complication of corneal ulcers or keratoconjunctivitis sicca.
Infectious keratitis is a bacterial infection that occurs as a complication of ulcerative keratitis or corneal ulcers. It is usually a result of Staphylococcus bacteria and may cause discharge from the eye, matted and swollen eyes and pain.
Other types of keratitis include fungal, interstitial and vascular. General treatment for all types of keratitis is topical medication that is applied directly to the affected eye. A sensitivity test is generally used to find out which topical antibiotic is most useful in treating the condition. Recovery time ranges from several weeks to several months, depending on the type of keratitis.