OCULAR LIGHT DAMAGE
OCULAR LIGHT DAMAGE
复制标题
眼部光损伤
DOI:
--
复制
发表时间:
1993
影响因子:
3.3
通讯作者:
S. Zigman
中科院分区:
文献类型:
--
作者:
S. Zigman
This review describes papers recently published on the damage to and protection of ocular tissues from environmental short-wavelength radiation. The focus is on radiant energy in the 295-450 nm range, as the ozone layer filters out wavelengths shorter than 295 nm. It is useful mechanistically to consider the effects of UV-B (280-3 15 nm)* and UV-A (3 15400 nm) wavelengths separately, but the natural environment always contains a mixture of near-UV wavelengths from 295 to 400 nm. Generally, it is 97% UV-A and 3% UV-B. From direct sun, at an intermediate latitude the eye would receive -300 kJ/m2 of UV-A and 10 kJ/m2 UV-B in 30 min. Near-UV energy is strongly absorbed in the anterior segment of the eye (cornea, lens). The exception is that in aphakic eyes (z.e. after lens removal), the posterior segment can also receive sufficient near-UV energy to be damaged by it. As the lens is an efficient UV filter, the greatest damage to the retina in intact eyes is from blue light. The blue retinal photoreceptors absorb blue light for vision, but they can also be damaged by intense exposure to it. Blue lightand near-UV radiation-induced cellular damage is often enhanced by natural photosensitizers present in all living cells and body fluids (i.e. riboflavin). Natural antioxidants also protect ocular tissues from light damage. Thus, near-UV and blue energy can damage the ocular tissues both by direct and photosensitized reactions. Antioxidants can be used to protect against these toxic reactions.
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影响因子:
3.4
作者:
Fu,J;Lam,TT;Tso,MO
通讯作者:
Tso,MO
影响因子:
2
作者:
Rafferty,NS;Scholz,DL
通讯作者:
Scholz,DL
影响因子:
3.4
作者:
Rapp,LM;Smith,SC
通讯作者:
Smith,SC
影响因子:
4.4
作者:
Hightower,K;McCready,J
通讯作者:
McCready,J
DOI:
--
发表时间:
1990
期刊:
Lens and eye toxicity research
影响因子:
--
作者:
Roberts,JE;Dillon,J
通讯作者:
Dillon,J