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2024年2月11日 · What Is Claudication? Claudication is the pain you feel when your leg muscles don’t get enough blood while you exercise. It’s also known as intermittent claudication. It is a sign of...
2024年2月13日 · Diabetes. High blood pressure. Obesity. Smoking. If you notice growths on your eyelids and want them removed, see a dermatologist or an oculoplastics surgeon. That's an eye doctor who has also ...
2024年2月27日 · The symptoms of systemic scleroderma may include: Skin thickening on your fingers, hands, face, lower arms, and shins. Hardened or thickened skin that's lighter or darker than your usual skin tone ...
- Pathophysiology
- Function
- Prevention
- Epidemiology
- Signs and symptoms
- Prognosis
We see through the cornea, which is the clear outer lens or \"windshield\" of the eye. Normally, the cornea has a dome shape, like a ball. Sometimes, however, the structure of the cornea is just not strong enough to hold this round shape and the cornea bulges outward like a cone. This condition is called keratoconus. Keratoconus is caused by a decr...
Tiny fibers of protein in the eye called collagen help hold the cornea in place and keep it from bulging. When these fibers become weak, they cannot hold the shape and the cornea becomes progressively more cone shaped.
Keratoconus appears to run in families. If you have it and have children, its a good idea to have their eyes checked for it starting at age 10. The condition progresses more rapidly in people with certain medical problems, including certain allergic conditions. It could be related to chronic eye rubbing.
Keratoconus usually starts in the teenage years. It can, though, begin in childhood or in people up to about age 30. It's possible it can occur in people 40 and older, but that is less common.
The changes in the shape of the cornea can happen quickly or may occur over several years. The changes can result in blurred vision, glare and halos at night, and the streaking of lights.
The changes can stop at any time, or they can continue for decades. There is no way to predict how it will progress. In most people who have keratoconus, both eyes are eventually affected, although not always to the same extent. It usually develops in one eye first and then later in the other eye. With severe keratoconus, the stretched collagen fib...
2023年2月21日 · Trouble focusing. Dry or watery eyes. Blurred or double vision. Increased sensitivity to light. Pain in the neck, shoulders, or back. These symptoms can lower your productivity. If you stay awake ...
2024年1月18日 · Fish, poultry, or lean meats (3 oz, or about the size of a deck of cards or the palm of your hand; 2 egg whites or 1 whole egg): 6 or fewer per day. Nuts, seeds, or beans (1 tablespoon of peanut ...
2020年8月17日 · There are separate growth charts for weight, height, and head circumference. These simply represent the average weight, height, or head circumference of a bunch of normal children. You will see ...
