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.
The most common foods that can cause hives if you are allergic include milk, egg, wheat, soy, fish, shellfish, peanut, and tree nuts. Can other ingredients in food cause hives? There are certain foods that can cause flushing, itching, and hives even though one may not be truly allergic to the food itself.