Finding out the cause of the allergy is the first step in effective allergy treatment. This resource will explain why is it important to get an allergy test if you have allergy symptoms and common types of allergy testing.
The retina is the layer of cells at the back of the eye that let us see light and color. The blockage usually comes from a clot or fatty deposit in your blood vessel. If the blood clot breaks free and moves to the brain, it can cause a stroke.