Drooping of the upper eyelids at birth. The lids may droop only slightly, or they may cover the pupils and restrict or even block vision. Moderate or severe ptosis calls for treatment to permit normal vision development. If congenital ptosis of the eyelids is not corrected, amblyopia (lazy eye) may develop, which can lead to permanently poor vision.
Post-traumatic stress disorder.
Propylthiouracil, an antithyroid medication, a drug that blocks the production of thyroid hormone by the thyroid gland. PTU is used to treat hyperthyroidism in order to reduce the excessive thyroid activity before surgery and to treat and maintain patients not having surgery.
The onset of puberty, often measured by the first development of pubic hair.
Adolescence, the period in which the human body first becomes capable of reproduction. The timing of the development of puberty is variable and involves many factors including genetic, nutritional, environmental, and social factors.
- Puberty, precocious
Precocious puberty is the unusually early development of secondary sexual features. The onset of sexual maturation in a girl before age 8 or a boy before age 9 is usually considered to be precocious puberty.