DescriptionPtosis, pronounced toe-sis, is the medical term for drooping of the upper eyelids. The droopy eyelid can be mild to severe. People who have ptosis may complain that people tell them they look ‚Äútired or lazy.‚Ä? Because of a constant effort to raise the eyelids it is not uncommon to also complain of fatigue and tension headaches.
The most common reason for ptosis is acquired ptosis , which develops as we age. This is due to disinsertion of the tendon that holds the eyelid up in a normal anatomic position. Another cause is congenital ptosis , which happens when a child is born with droopy eyelids. This is rather an urgent medical condition for the child and surgery may be needed to prevent permanent loss of vision in the affected eye. Other rare causes of ptosis include myogenic ptosis from conditions such as Myasthenia gravis, neurogenic ptosis , due to third nerve palsy and mechanical ptosis from tumors or trauma.
In order for the visual system to develop normally, each eye needs to receive the visual information independently. In other words if the child has droopy eyelids, this will result in blockage of the visual information to the brain, thus leading to irreversible poor vision. Therefore it is important to surgically raise the eyelids to prevent permanent loss of vision.