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[The eye and ultraviolet radiation].

Abstract

The latest investigations show that the ultraviolet radiations are more dangerous for the eye than appreciated up to now. There exist 3 types of UV rays: 1. UV with wavelengths between 100 and 280 nm, absorbed by the ozone layer of the stratosphere and which have no impact; 2. UV with wavelengths between 280 and 315 nm, noxious for the cornea; 3. UV with wavelengths between 315 and 400, noxious both for the cornea and for the lens. When the lens is removed, the UV rays penetrate into the retina, where they provoke cystoid macular edema and then detachment of retina of the anterior pole (A ultraviolet with wavelengths between 315 and 400 nm). Up to the age of 10, the cornea and the lens permit UV penetration. After this age, a cumulative effect is produced, by the appearance in the cornea and the lens of fluorescein "chromatophores", a pigmentation, a change of the soluble proteins into insoluble ones, with high molecular weight and appearance of free radicals. The final results of these changes is the formation of a cataract. Aphakia permits the penetration of the UV rays into the retina, where their phototoxic effect works and therefore the implantation of the lens for retaining the UV with 400 nm wavelength is necessary.

Authors

No affiliation info available

Pub Type(s)

English Abstract
Journal Article
Review

Language

rum

PubMed ID

2533363

Citation

Mihail, S. "[The Eye and Ultraviolet Radiation]." Revista De Chirurgie, Oncologie, Radiologie, O. R. L., Oftalmologie, Stomatologie. Seria: Oftalmologie, vol. 33, no. 4, 1989, pp. 241-4.
Mihail S. [The eye and ultraviolet radiation]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Ser Oftalmol. 1989;33(4):241-4.
Mihail, S. (1989). [The eye and ultraviolet radiation]. Revista De Chirurgie, Oncologie, Radiologie, O. R. L., Oftalmologie, Stomatologie. Seria: Oftalmologie, 33(4), 241-4.
Mihail S. [The Eye and Ultraviolet Radiation]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Ser Oftalmol. 1989;33(4):241-4. PubMed PMID: 2533363.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [The eye and ultraviolet radiation]. A1 - Mihail,S, PY - 1989/10/1/pubmed PY - 1989/10/1/medline PY - 1989/10/1/entrez SP - 241 EP - 4 JF - Revista de chirurgie, oncologie, radiologie, o. r. l., oftalmologie, stomatologie. Seria: Oftalmologie JO - Rev Chir Oncol Radiol O R L Oftalmol Stomatol Ser Oftalmol VL - 33 IS - 4 N2 - The latest investigations show that the ultraviolet radiations are more dangerous for the eye than appreciated up to now. There exist 3 types of UV rays: 1. UV with wavelengths between 100 and 280 nm, absorbed by the ozone layer of the stratosphere and which have no impact; 2. UV with wavelengths between 280 and 315 nm, noxious for the cornea; 3. UV with wavelengths between 315 and 400, noxious both for the cornea and for the lens. When the lens is removed, the UV rays penetrate into the retina, where they provoke cystoid macular edema and then detachment of retina of the anterior pole (A ultraviolet with wavelengths between 315 and 400 nm). Up to the age of 10, the cornea and the lens permit UV penetration. After this age, a cumulative effect is produced, by the appearance in the cornea and the lens of fluorescein "chromatophores", a pigmentation, a change of the soluble proteins into insoluble ones, with high molecular weight and appearance of free radicals. The final results of these changes is the formation of a cataract. Aphakia permits the penetration of the UV rays into the retina, where their phototoxic effect works and therefore the implantation of the lens for retaining the UV with 400 nm wavelength is necessary. SN - 1220-0859 UR - https://www.unboundmedicine.com/medline/citation/2533363/[The_eye_and_ultraviolet_radiation]_ L2 - https://medlineplus.gov/eyecare.html DB - PRIME DP - Unbound Medicine ER -
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