noun. 1  a. An old French dance resembling the gavotte, usually in 3/4 or 2/2 time beginning with an upbeat. 2  A movement in ballet in which the dancer transfers body weight quickly from foot to foot, usually on the balls of the feet, in a series of small steps.
Nystagmus is a condition where the eyes make repetitive movements. The eyes can jerk exclusively in one direction, or make back and forth movements. With nystagmus, the eye can look jittery and can affect both eyes or just one eye.
Ptosis describes drooping of one or both eyelids and can be congenital (present at birth) or acquired. If left untreated, ptosis and other eyelid problems can cause: âLazy eyeâ (amblyopia): Inability of one eye to see well (in spite of glasses or other means) Eyesight problems such as astigmatism (poor eyesight caused by irregular eye shape)