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Eyelid edema is a condition in which the eyelids are swollen and tissues contain excess fluid. It may affect eye function when it increases the intraocular pressure. Eyelid edema is caused by allergy, trichiasis or infections. [4] The main symptoms are swollen red eyelids, pain, and itching. Chronic eyelid edema can lead to blepharochalasis.
An epicanthic fold or epicanthus [6] is a skin fold of the upper eyelid that covers the inner corner (medial canthus) of the eye. [3] However, variation occurs in the nature of this feature and the possession of "partial epicanthic folds" or "slight epicanthic folds" is noted in the relevant literature.
A unique feature of most mammal eyes is the presence of eyelids which wipe the eye and spread tears across the cornea to prevent dehydration. These eyelids are also supplemented by the presence of eyelashes , multiple rows of highly innervated and sensitive hairs which grow from the eyelid margins to protect the eye from fine particles and ...
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. [1] It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.
The term comes from the Latin word nictare, meaning "to blink". It is often called a third eyelid or haw, and may be referred to in scientific terminology as the plica semilunaris, membrana nictitans, or palpebra tertia. Unlike the upper and lower eyelids, the nictitating membrane moves horizontally across the eyeball.
The Arabic word cognates with Syriac-Aramaic word כוחלא / ܟܘܚܠܐ kuḥla. Both words derived from Akkadian 𒎎𒋆𒁉𒍣𒁕 guẖlu(m) meaning stibnite. The English word alcohol is a loan of the Arabic word (via Middle Latin and French; originally in the sense "powder of antimony". The modern meaning is from the 18th century).
Williams says kids begin pointing to and naming body parts between 1 and 2 years of age, but don’t ask questions about bodily functions until they're around 3 years old. Additionally, they need ...
Blepharoconjunctivitis is the dual combination of conjunctivitis with blepharitis (inflammation of the eyelids). [citation needed] Keratoconjunctivitis is the combination of conjunctivitis and keratitis (corneal inflammation). [citation needed] Blepharokeratoconjunctivitis is the combination of conjunctivitis with blepharitis and keratitis.