2024年3月8日 · Retinal diseases vary widely, but most of them cause visual symptoms. Retinal diseases can affect any part of your retina, a thin layer of tissue on the inside back wall of the eye.

2022年8月2日 · Overview. Sjogren's (SHOW-grins) syndrome is a disorder of your immune system identified by its two most common symptoms — dry eyes and a dry mouth.

2022年3月31日 · Pectus excavatum is a condition in which the person's breastbone is sunken into the chest. In severe cases, pectus excavatum can look as if the center of the chest has been scooped out, leaving a deep dent.

Retinal detachment. Retinal detachment is an emergency situation in which the thin layer of tissue at the back of the eye, called the retina, pulls away from its usual position.

2023年12月14日 · Plaque psoriasis, the most common form of psoriasis, causes dry, raised skin patches (plaques) covered with gray or silver scales.

2023年8月2日 · LASIK surgery. During LASIK eye surgery, an eye surgeon creates a flap in the cornea — the transparent, dome-shaped surface of the eye that accounts for a large part of the eye's bending or refracting power (A).

2024年12月11日 · Wet macular degeneration is an eye condition that causes blurred vision or reduced central vision. It is a type of age-related macular degeneration where blood vessels leak fluid or blood into part of the retina known as the macula (MAK-u-luh).

2024年11月6日 · Causes. In a latex allergy, the immune system identifies latex as a harmful substance and triggers certain antibodies to fight it off.

A cornea transplant is an operation to replace part of the cornea with corneal tissue from a donor. This operation is sometimes called keratoplasty.

2024年2月15日 · Leukoplakia (loo-koh-PLAY-key-uh) causes thick, white patches that form on the gums. The patches also may form on the insides of the cheeks and the bottom of the mouth.