Rosacea keratitis
A condition affecting the eyes in about half of all cases of rosacea. It is characterized by burning and grittiness of the eyes (conjunctivitis). If this is not treated, inflammation of the cornea may impair vision.
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- Roseola
A child with rash and no fever may usually return to child care. Because the rash appears so suddenly (right after the fever dramatically departs), the disease is also sometimes called exanthem subitum.
- Roseola infantilis
A child with rash and no fever may return to child care. Because the rash appears so suddenly (right after the fever dramatically departs), the disease is also sometimes called exanthem subitum.
- Roseola infantum
A child with rash and no fever may return to child care. Because the rash appears so suddenly (right after the fever dramatically departs), the disease is also sometimes called exanthem subitum.
- Rossi counter
An instrument used to measure the energy deposited by radiation in microscopic sites such as cells. Named for its creator Harald H. Rossi (1917-2000), a radiobiophysicist who contributed much to our ability to measure minute amounts of ionizing radiation and their effects on living things.
- Rotator cuff
A group of four tendons that stabilize the shoulder joint. Each of these tendons attaches to a muscle that moves the shoulder in a specific direction. The four muscles whose tendons form the rotator cuff are the subscapularis muscle, which moves the arm by turning it inward (internal rotation); the supraspinatus muscle, which is responsible […]