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.
1 Eye pain and other symptoms often described by those experiencing eye problems are summarized below: 2  Pain in or around the eye. 3  Partial or complete loss of vision. 4  Extreme light sensitivity. 5  Tearing. 6  Double vision. 7  Halos (colored circles or halos around lights).