It is very important to correct eye problems early on, as it might lead to total or partial blindness. Otherwise, the condition can be prevented by regularly getting your dog’s eyes checked for intra ocular pressure by an ophthalmologist. Blurred vision is often a symptom of transient ischemic attack or mini stroke, which often precedes a massive one. This condition should not be ignored and a doctor should be contacted immediately. http://www.alabamascholars.org/advisingeyedoc/2016/11/01/the-best-tips-on-real-world-products-in-keratoconus/Even slightly affected production or drainage of aqueous humour can lead to significant changes in the pressure. http://www.aprasw.org/advisingeyedoc/2016/11/01/what-you-should-know-about-effortless-programs-of-laser-eye-surgery/These clumps floats in the vitreous humour tend to cast shadows on the retina and a person will see spots in front of his eyes. Eye pain is one of the most common eye strain symptom. If you are a diabetic patient, then this could be the cause behind sudden loss of clear vision.