2023年5月16日 · The classic presentation includes unilateral mild ptosis with anisocoria (smaller pupil on the ptotic side) due to involvement of the sympathetic chain. It’s imperative to document pupillary size and reactivity in light and dark conditions.

2024年5月20日 · Unilateral ptosis is a drooping of one eyelid that can affect vision and appearance. Causes of unilateral ptosis can include neurological disorders, eye conditions, trauma, congenital factors, age-related changes, myasthenia gravis, …

2020年4月15日 · Horner syndrome is characterized by unilateral ptosis, pupillary miosis and facial anhidrosis secondary to interruption of sympathetic innervation to the eye. The ptosis associated with Horner syndrome is mild, typically only 1mm to 2 mm, and is due to lack of innervation to Müeller’s muscle in the upper eyelid.

Ptosis is a condition in which your upper eyelid droops, sags or falls over your eye. It usually happens because your levator muscle — the muscle that lifts your eyelid — doesn’t work as it should. The condition can limit your vision or block it completely, depending on …

2010年5月1日 · Approximately 10% to 20% of patients with unilateral ptosis have some degree of induced retraction on clinical evaluation in the contralateral lid. When there is a positive Hering’s test on preoperative examination, the surgeon should consider a bilateral ptosis procedure.

2023年8月8日 · Ptosis is known as the drooping of the upper eyelid, and the patient usually presents with the complaint of the defect in vision and cosmesis. It can be congenital or acquired, or it can be neurogenic, myogenic, aponeurotic, mechanical, or traumatic in origin.

2015年4月6日 · Ptosis can be bilateral or unilateral and can be difficult to identify unless a proper exam is performed. Ptosis is relatively common in the general population and while frequently regarded as a purely cosmetic issue, ptosis can be visually disabling and may be a sign of underlying systemic disease.

2015年8月14日 · Unilateral ptosis can be the result of weakness of the Müller muscle, which is innervated by the sympathetic nervous system (Horner syndrome) or the levator palpebrae superioris muscle, which is supplied by cranial nerve III (ie, the oculomotor nerve). 1 In Horner syndrome, ptosis is not accompanied by diplopia. Disorders of the oculomotor ...

2024年11月11日 · Ptosis is when the upper eyelid droops over the eye. The eyelid may droop just a little, or so much that it covers the pupil (the black dot at the center of your eye that lets light in). Ptosis can limit or even completely block normal vision. Children and adults can have ptosis.

Ptosis may only affect one eye (unilateral ptosis), or it may affect both eyes (bilateral ptosis). It can also occur in both children and adults, although the symptoms and causes vary slightly between each age group. If ptosis is present at birth, it’s known as congenital ptosis. If it’s developed later in life, it’s referred to as acquired ptosis.