The pupil, the black spot in the center of the eye, is essentially a hole that allows light into the eye. The pupil enlarges and constricts as the muscles attached to it respond to stimuli such as light, which shrinks pupils. Darkness and stress...
Cataracts affect the lens of the eye. When a person has a cataract, the lens is obstructed by a cloudy mass that prevents him from seeing clearly, with her field of vision resembling a fogged window.
Your baby's eyes begin forming just two weeks after conception, according to University of Illinois at Chicago Department of Ophthalmology and Visual Sciences. He will likely have eye drops administered shortly after birth and may need them again...
A concussion is a traumatic blow to the brain. Concussion occurs if a blow to the head causes the brain to bounce off the skull, causing swelling and trauma, according to PDR Health. Concussion can also occur if injury causes bleeding inside the...
Kava kava, also known simply as kava, is an herbal supplement primarily used to treat anxiety. It also may help relieve stress, insomnia and menopausal symptoms. Numerous side effects are possible, some severe. For this reason, the U.S. National...
Kava tea is a beverage brewed from the root of the Piper methysticum plant. While kava has been used for centuries in some regions, recent links to liver damage have raised serious questions about its safety. Understanding the risks of kava is...
Your eyeball is located inside a pear-shaped bony cavity known as the orbit. The orbit also holds muscles, nerves, blood vessels and structures that form and drain tears. The white part of the eyeball is called the sclera. The sclera is covered by...
The two cavernous sinuses are venous drainage areas on either side of the pituitary gland, at the base of the skull. Several cranial nerves and the internal carotid artery pass through the sinus. Thrombosis, or clotting, in the sinus can be caused...
Maintaining healthy eyes and good vision requires routine eye examinations. Eye care professionals gather each patient's medical information, such as allergies to medications, to monitor eye health, but also to avoid complications from any part of...