The Tropic of Cancer and The Tropic of Capricorn. The Tropic of Cancer and the Tropic of Capricorn each lie at 23.5 degrees latitude. The Tropic of Cancer is located at 23.5Â° North of the equator and runs through Mexico, the Bahamas, Egypt, Saudi Arabia, India, and southern China.
Dr. Elliot Werner: Neither. Halos indicate something in the transparent structures of the eye that is interfering with the transmission of light back to the retina. The most common causes of halos are corneal edema (swelling), cataract, and high humidity in the air.
Following are some allergic causes of dark circles around the eyes: 1. Seasonal: Seasonal allergies such as food allergies, hay fever, cosmetic allergies and allergens from the workplace or home, cause dark circles.Allergies results in inflammation that expands the tiny blood vessels under eyes.eople having allergies to the mold, dust, dander from cats and dogs donât sleep properly and suffer from adrenal fatigue. Because of these reasons they get dark circles under eyes. 3. Food: There are certain foods that can cause allergic reactions and contributes to dark circles.