Ptosis is the medical term for drooping of the upper eyelid(s).
Ptosis is the medical term for a drooping eyelid. It refers only to the upper eyelid; it does not refer to lower eyelid sagging. Upper eyelid drooping can sometimes affect your vision if the drooping is severe. Symptoms of Ptosis. The primary symptom of ptosis is a visible drooping of the upper eyelid. Ptosis can affect children and adults at any stage of life. You may notice symptoms in one or both eyes. There are two types of ptosis: acquired and congenital. Congenital ptosis is present at birth and is usually due to the lack of development of eyelid muscles called levators. Acquired ptosis is the most common type, and is usually due to the muscles that elevate the eyelid becoming weak, thin, or stretched with age. Droopy eyelids interfere with vision and can lead to fatigue from straining to elevate the eyelids.  Ptosis can be caused by the aponeurosis of the levator muscle, nerve abnormalities, trauma, inflammation or lesions of the lid or orbit. Dysfunctions of the levators may occur as a result of autoimmune antibodies attacking and eliminating the neurotransmitter. When caused by Horner's syndrome, ptosis is usually accompanied by miosis and anhidrosis. In this case, the ptosis is due to the result of interruption innervations to the sympathetic, autonomic Muller's muscle rather than the somatic levator palpebrae superioris muscle. acquired aponeurotic ptosis Ptosis caused by a partial disinsertion, dehiscence or weakness of the aponeurosis of the levator palpebrae superioris muscle. It usually occurs in old age and is bilateral, but disinsertion can result from trauma to one eye (e.g. following eye surgery). Congenital ptosis may be caused by a problem with nerve innervation or a weak muscle. Drooping eyelids may also be the result of diseases such as myotonic dystrophy or myasthenia gravis. The primary symptom of ptosis is a drooping eyelid. Ptosis usually refers to drooping of the upper eyelid. This is most commonly seen in aging, however, many conditions can cause ptosis including trauma, certain nerve palsies, myasthenia and other conditions. Ptosis may also be congenital.  Ptosis is defined as drooping of the upper lid, partly covering the pupil. Ptosis causes a tired, sleepy appearance and reduces vision. Repair is intended to provide a more youthful, vibrant appearance as well as to improve your sight.  Background. A drooping eyelid is called ptosis or blepharoptosis. In ptosis, the upper eyelid falls to a position that is lower than normal. In severe cases of ptosis, the drooping eyelid can cover part or all of the pupil and interfere with vision, resulting in amblyopia. Note the images below: Congenital ptosis of the right eye. Ptosis can affect one eye or both eyes. Ptosis may be present at birth, or it may develop later in life. If a droopy eyelid is present at birth or within the first year of life, the condition is called congenital ptosis. Ptosis may occur because the levator muscle's attachment to the lid is weakening with age. Acquired ptosis can also be caused by a number of different things, such as disease that impairs the nerves, diabetes, injury, tumors, inflammation, or aneurysms. Congenital ptosis may be caused by a problem with nerve innervation or a weak muscle. Drooping eyelids may also be the result of diseases such as myotonic dystrophy or myasthenia gravis. The primary symptom of ptosis is a drooping eyelid. Ptosis (pronounced “toe-sis”) is the medical term for drooping of the upper eyelid(s). This lowering of the upper eyelid margin may cause a reduction in the field of vision when the eyelid either partially or completely obstructs the pupil. Patients with ptosis often have20difficulty keeping their eyelids open. There are many causes of ptosis including age related weakening of the muscle, congenital weakness, trauma, or sometimes neurologic disease. As we age, the tendon that attaches the levator muscle, the major muscle that lifts the eyelid can stretch and cause the eyelid to fall. Ptosis can be caused by a number of factors that affect the muscles, nerves, or skin of the eyelids. The muscles that allow your eyelids to move up and down—called the levator muscles—can become weakened from age or injury. Symptoms of Ptosis. The primary symptom of ptosis is a visible drooping of the upper eyelid. Ptosis can affect children and adults at any stage of life. You may notice symptoms in one or both eyes.
http://www.healthline.com/symptom/droopy-eyelid http://www.eyehealthweb.com/ptosis/ https://en.wikipedia.org/wiki/Ptosis_(eyelid) http://medical-dictionary.thefreedictionary.com/Ptosis https://www.sharecare.com/health/eye-conditions/what-is-eyelid-ptosis http://www.eyeconsultantsofpa.com/oculoplastic-surgery-facial-rejuvenation/ptosis-repair-reading-pa.html http://emedicine.medscape.com/article/1212815-overview http://medical-dictionary.thefreedictionary.com/Ptosis http://www.asoprs.org/i4a/pages/index.cfm?pageid=3669 http://www.healthline.com/symptom/droopy-eyelid
what is ptosis