Ptosis
Downward displacement. For example, ptosis of the eyelids is drooping of the eyelids.
Read Also:
- Ptosis of the eyelids, adult
Drooping of the upper eyelids in adults, most commonly due to separation of the tendon of the lid-lifting (levator) muscle from the eyelid. This may occur with age, after cataract or other eye surgery, an injury, eye tumor or a complication of other diseases involving the levator muscle or its nerve supply, such as diabetes. […]
- Ptosis of the eyelids, congenital
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 […]
- PTSD
Post-traumatic stress disorder.
- PTU
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.
- Pubarche
The onset of puberty, often measured by the first development of pubic hair.