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.
Sometimes called âallergic shinersâ, dark under-eye circles are usually caused by allergies. When the nose is blocked, blood might not be able to flow through. This expands and darkens the veins that drain from the eyes to the nose. Congestion can also cause blood to sit in the area under the eyes. Often, doctors cannot find a cause for your childâs under-eye circles. Other causes may include: chronic sinus infections. enlarged adenoidsâ, causing nose blockage. eczema. heredity: dark under-eye circles can run in families.