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.
Other things that can contribute to dark circles under the eyes include: medication that causes blood vessels to dilate; scratching or rubbing your eyes excessively, such as during allergy season; regularly sleeping on your stomach; and in our best WebMD impression, you should know they can also be caused by liver diseaseâ¦ possibly deadlyâ¦