pterygium

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pte·ryg·i·um

 (tə-rĭj′ē-əm)
n. pl. pte·ryg·i·ums or pte·ryg·i·a (-ē-ə)
An abnormal mass of tissue arising from the conjunctiva of the inner corner of the eye that obstructs vision by growing over the cornea.

[New Latin, from Greek pterugion, diminutive of pterux, pterug-, wing; see pterygoid.]

pte·ryg′i·al (-əl) adj.

pterygium

(təˈrɪdʒɪəm)
n, pl -gia (-dʒɪə)
1. (Pathology) pathol an abnormal tissue growth over the corner of the eye
2. (Medicine) pathol an abnormal growth of the cuticle over the nail plate
3. (Medicine) pathol a web of skin found on the neck or between digits
4. (Anatomy) anatomy obsolete any of various wing-like structures
5. (Zoology) entomol obsolete (in some lepidopterans) a lobe at the base of the hind wing
6. (Anatomy) anatomy a vertebrate fin
7. botany obsolete a petal in the shape of a wing

pte•ryg•i•um

(təˈrɪdʒ i əm)

n., pl. -ryg•i•ums, -ryg•i•a (-ˈrɪdʒ i ə)
an abnormal triangular mass of thickened conjunctiva extending over the cornea and interfering with vision.
[1650–60; < New Latin < Greek pterýgion little wing or fin =pteryg-, s. of ptéryx wing, fin]
pte•ryg′i•al, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pterygium - either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the corneapterygium - either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula
conjunctiva - a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid
Translations

pte·ryg·i·um

n. pterigión, membrana de tejido subconjuntivo que al extenderse de la conjuntiva hasta la córnea obstruye la visión.

pterygium

n pterigión m, carnosidad f en el ojo
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References in periodicals archive ?
Pterygia (webbing) may also occur across the elbow.
The microscope should be suited by smENkirurgi as pterygia, trikiasis and tumors.
The issue of ultraviolet (UV) protection is becoming increasingly important due to public awareness of the thinning of the ozone layer and the correlation between UV exposure and its association with changes to the eye such as cataract and pterygia.
Pingueculae and Pterygia, which are types of growths on the eye's surface that can become unsightly and cause distorted vision.
A: Long-term exposure to sunlight increases the risk of a type of cataract and is linked to pterygia (a growth on the surface of the eye).
Relationships of heredity and dry eye with pterygia in black African patients.
These include eyelid injuries and disorders, blepharoplasty, pterygia, orbital trauma and diseases, tumors, surfocular dryness, and stem cell surgery and transplantation.
Ultraviolet radiation can cause many ocular problems including skin cancer, pterygia and pingeculae (solar elastoses), corneal keratopathy, cataracts (lens opacity), and possibly macular degeneration.
p53 expression and relation to human papillomavirus infection in pingueculae, pterygia, and limbal tumors.
The involvement of adult stem cells originated form the bone marrow in the pathogenesis of Pterygia.
Long-term effects include pterygia, pingueculae, cataracts, and retinal damage.