The object of convergence is the directing of the yellow spot in each eye towards the same point, so as to produce singleness of vision; diplopia, or double vision, at once resulting when the image of an object is formed on parts of the retina which do not exactly. correspond in the two eyes.
Hives are red, itchy, slightly elevated swellings. Itching may be severe. Hives have clearly defined borders and may have a pale center. Typically, crops of hives come and go. One hive may remain for several hours, then disappear, and later, another may appear elsewhere.
Your Cures and Remedies Archive. ï»¿. Hives, also known as urticaria, is an allergic reaction that involves rash and welts appearing in different parts of the skin. Hives are extremely itchy and can either last for a couple of minutes or days before disappearing.ives, also known as urticaria, is an allergic reaction that involves rash and welts appearing in different parts of the skin. Hives are extremely itchy and can either last for a couple of minutes or days before disappearing.