Eye development

Vitamin A deficiency during embryogenesis results in anterior segment defects (particularly cornea and eyelids) that lead to vision loss or blindness. There is some evidence that LMX1B plays a role in periocular mesenchymal survival. *Keith L. Moore and T.V.N. Persaud (2008). The developing human—clinical oriented embryology. 8th edition. USA: Saunders, an imprint of Elsevier Inc. p. 429 * Development of the Eye: A Series of Inductive Interactions retina. epithelial lining of ciliary body and iris. optic nerves. lens. corneal epithelium. skin of eyelid. sclera.

Sulcus subtarsalis

Sulcus subtarsalis is a groove in the innersurface of eyelid near the eyelid margin and which is also parallel to it. This separates marginal conjunctiva from tarsal conjunctiva. It provides space for lodging of foreign bodies. Arlt's line is a linear line present in the sulcus subtarsalis in Chlamydia trachomatis infection.

Ciaccio's glands

lachrymal caruncle
Ciaccio's glands or Wolfring's glands are small tubular accessory lacrimal glands (glandulae lacrimales accessoriae) found in the lacrimal caruncle of the eyelid. They are located in the upper border of the tarsus, approximately in the middle between the extremities of the tarsal glands. Sometimes they are situated slightly above the tarsus. There are usually 2 to 5 of these glands in the upper eyelid, and their function is to produce tears which are secreted onto the surface of the conjunctiva. They are named after Italian anatomist Giuseppe Vincenzo Ciaccio (1824–1901), who described these glands in 1874.

Eyelid (disambiguation)

Eyelid is part of the eye. *Eyelid Movies, album Eyelids (film), a Korean film. "Eyelids", a song by The Dodos from Visiter 2008.

Birt–Hogg–Dubé syndrome

Birt–Hogg–Dube (BHD) syndrome
These lesions are usually found in the armpit, on the eyelids, and in folds of skin. Not all individuals develop the facial tumors; some families with the mutation that causes BHD develop only kidney tumors or spontaneous pneumothorax. People over 20 years of age with Birt–Hogg–Dubé syndrome have an increased risk of developing slow-growing kidney tumors (chromophobe renal carcinoma and renal oncocytoma, respectively), kidney cysts, and possibly tumors in other organs and tissues. These tumors often occur in both kidneys and in multiple locations in each kidney. The average number of kidney tumors found in a person with BHD is 5.3, though up to 28 tumors have been found.

Ectrodactyly–ectodermal dysplasia–cleft syndrome

cleft feetectrodactyly-ectodermal dysplasia-cleft syndromeEctrodactyly-Ectodermal Dysplasia-Clefting (EEC) syndrome
Other features noted in association with EEC include vesicoureteral reflux, recurrent urinary tract infections, obstruction of the nasolacrimal duct, decreased pigmentation of the hair and skin, missing or abnormal teeth, enamel hypoplasia, absent punctae in the lower eyelids, photophobia, occasional cognitive impairment and kidney anomalies, and conductive hearing loss. Ectrodactyly involves the deficiency or absence of one or more central digits of the hand or foot and is also known as split hand–split foot malformation (SHFM).

Human hair growth

catagenhair growthgrowth
The growth of human hair occurs everywhere on the body except for the soles of the feet, the lips, palms of the hands, some external genital areas, the navel, scar tissue, and, apart from eyelashes, the eyelids. Hair is a stratified squamous keratinized epithelium made of multi-layered flat cells whose rope-like filaments provide structure and strength to the hair shaft. The protein called profis makes up hair and stimulates hair growth. Hair follows a specific growth cycle with three distinct and concurrent phases: anagen, catagen, and telogen. Each phase has specific characteristics that determine the length of the hair.


intercanthal distance
Telecanthus (from the Greek word "tele" meaning far, and the Latin word canthus, meaning either corner of the eye, where the eyelids meet) refers to increased distance between the medial canthi of the eyes, while the inter-pupillary distance is normal. This is in contrast to hypertelorism, where the inter-pupillary distance is increased. The distance between the inner corner of the left eye and the inner corner of the right eye is called intercanthal distance. In most people, the intercanthal distance is equal to the distance between the inner corner and the outer corner of each eye, that is, the width of the eye.

Death by Stereo

He was replaced by Dan Palmer, formerly of the band Eyelid. They toured for the rest of the year. In the winter of 1999, during a tour with Straight Faced and Ignite, Brett Gurewitz from Epitaph Records approached the band about releasing an album, ultimately signing them in 2000. Between a tour with Bane and Adamantium, they finished their second album, Day of the Death, which was released in January 2001. Death By Stereo spent almost all of 2001, touring North America, with bands such as Sick Of It All, Boysetsfire, The Hope Conspiracy, AFI, Rise Against, Nicotine and The Planet Smashers.

Ocular rosacea

Ocular rosacea is a manifestation of rosacea that affects the eyes and eyelids. Signs and symptoms generally consist of redness, irritation or burning of the eyes. Affected individuals may also feel that there is something, such as an eyelash, in the eye and frequently have redness of the nose and cheeks as well. Those who suffer from ocular rosacea may be treated with warm compresses, artificial tears and washing the area around the eye with warm water, including the eyelids, to help relieve symptoms. Additionally, oral antibiotics, typically doxycycline, may be prescribed.

Index of anatomy articles

Europhiles. eustachian tube. excretory system. exocrine gland. exophthalmos. exoskeleton. exotropia. extensor plantar response. extensor posturing. extensor retinaculum. external auditory meatus. external capsule. external carotid artery. external ear. external iliac artery. external jugular vein. external laryngeal nerve. external medullary lamina. external nasal nerve. external occipital protuberance. external ophthalmoplegia. extraocular muscles. extraperitoneal. extrapyramidal motor system. extrapyramidal signs. extrapyramidal system. extreme capsule. extrinsic muscle. eye. eyebrow. eyelash. eyelid. fabella. face. facet joint. facial artery. facial bone. facial colliculus. facial nerve. facial

Robinow syndrome

Though the eyes do not protrude, abnormalities in the lower eyelid may give that impression. Surgery may be necessary if the eyes cannot close fully. In addition, the ears may be set low on the head or have a deformed pinna. Patients suffer from dwarfism, short lower arms, small feet, and small hands. Fingers and toes may also be abnormally short and laterally or medially bent. The thumb may be displaced and some patients, notably in Turkey, experience ectrodactyly. All patients often suffer from vertebral segmentation abnormalities. Those with the dominant variant have, at most, a single butterfly vertebra.


It causes pain, redness, and swelling over the inner aspect of the lower eyelid and epiphora. When nasolacrimal duct obstruction is secondary to a congenital barrier it is referred to as dacrocystocele. It is most commonly caused by Staphylococcus aureus and Streptococcus pneumoniae. The most common complication is corneal ulceration, frequently in association with S. pneumoniae. The mainstays of treatment are oral antibiotics, warm compresses, and relief of nasolacrimal duct obstruction by dacryocystorhinostomy. A variety of causes may lead to dacryocystitis. Most notably, obstruction of the nasolacrimal duct leads to stasis of the nasolacrimal fluid, which predisposes to infection.


mucolipidosis Ineuraminidase
These infants are often born with coarse facial features, such as a flat nasal bridge, puffy eyelids, enlargement of the gums, and excessive tongue size (macroglossia). Many infants with ML I are also born with skeletal malformations such as hip dislocation. Infants often develop sudden involuntary muscle contractions (called myoclonus) and have red spots in their eyes (cherry red spots). They are often unable to coordinate voluntary movement (called ataxia). Tremors, impaired vision, and seizures also occur in children with ML I. Tests reveal abnormal enlargement of the liver (hepatomegaly) and spleen (splenomegaly) and extreme abdominal swelling.

Lacrimal papilla

papillae lacrimales
At the basal angles of the lacus lacrimalis, on the margin of each eyelid, is a small conical elevation, the lacrimal papilla, the apex of which is pierced by a small orifice, the punctum lacrimale, the commencement of the lacrimal duct. * Papilla (disambiguation) * Description at uams.edu

Superficial parotid lymph nodes

Their afferent vessels drain the root of the nose, the eyelids, the frontotemporal region, the external acoustic meatus and the tympanic cavity, possibly also the posterior parts of the palate and the floor of the nasal cavity. The efferents of these glands pass to the superior deep cervical glands.

Duck and cover

assessment of millions of homesdrillDuck-and-cover
While the duration of emittance of this burning thermal radiation, which can be experienced by people within range, increases with yield, it is usually at least a few seconds long. ) Great importance is given to closing eyelids and covering the location of the eyes as temporary and permanent flash blindness is a risk potential without this covering, especially at night.

Griffith's sign

Griffith's sign is a clinical sign in which there is lid lag of the lower eyelid on moving the eye upwards. It is found in Graves' ophthalmopathy. Von Graefe's sign. Boston's sign.

Dry eye syndrome

dry eyekeratoconjunctivitis siccadry eyes
In severe cases of dry eyes, tarsorrhaphy may be performed where the eyelids are partially sewn together. This reduces the palpebral fissure (eyelid separation), ideally leading to a reduction in tear evaporation. Keratoconjunctivitis sicca usually is a chronic problem. Its prognosis shows considerable variance, depending upon the severity of the condition. Most people have mild-to-moderate cases, and can be treated symptomatically with lubricants. This provides an adequate relief of symptoms. When dry eyes symptoms are severe, they can interfere with quality of life.


human facefacialfacial feature
The eyes sitting in the orbit and protected by eyelids, and eyelashes. The distinctive human nose shape, nostrils, and nasal septum. The cheeks covering the maxilla and mandibula (or jaw), the extremity of which is the chin. The mouth, with the upper lip divided by the philtrum, sometimes reveals the teeth. Diprosopus. Face perception. Facial symmetry. Physiognomy. Prosopagnosia.

Inferior palpebral nerve

inferior palpebral branches
The Inferior palpebral nerve (inferior palpebral branches) ascend behind the orbicularis oculi. They supply the skin and conjunctiva of the lower eyelid, joining at the lateral angle of the orbit with the facial and zygomaticofacial nerves.

Sphenoid wing meningioma

Proptosis, or anterior displacement of the eye, and palpebral swelling may also occur when the tumor impinges on the cavernous sinus by blocking venous return and leading to congestion. Damage to cranial nerves in the cavernous sinus leads to diplopia. Cranial nerve VI is often the first affected, leading to diplopia with lateral gaze. If cranial nerve V-1 is damaged, the patient will have pain and altered sensation over the front and top of the head. Horner's syndrome may occur if nearby sympathetic fibers are involved. Tumors found in the external third of the sphenoid are of two types: en-plaque and globoid meningiomas.

Microwave burn

microwave burns
Experiments on rabbits and dogs, mostly in the UHF range of frequencies, shown that the ocular effects are confined to eyelids and conjuctiva (as e.g. anterior segment keratitis or iritis). Cataracts were observed at several workers exposed to radiofrequency radiation, but in some of the cases the cause was unrelated to the RF exposure and in the other cases the evidence was incomplete or inconclusive. Some sources however mention incidence of microwave-related injuries of ocular lens and retina and the possibility of thermal effects to cause cataracts or focal tissue burns (incl. keratitis).