Learn about the causes and effects of ozone depletion. 3 4 cataract simulation other kinds of eye damage include pterygium (ie, tissue growth that can block vision), skin cancer around the eyes, and degeneration of the macula (ie, the part of the retina where visual perception is most acute) all of these problems can be lessened with proper eye protection from uv radiation. Ozone depletion describes two related phenomena observed since the late 1970s: a steady decline of about four percent in the total amount of ozone in earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around earth's polar regions the latter phenomenon is referred to as.
The degradation of ozone by cfc is also initiated by uv-c radiation: the chlorine radical created in reaction 5 by absorption of uv-c radiation is set free again and again in a continuous repetition of the reactions 6 and 7, whereby the oxygen radical in reaction 7 comes from the natural degeneration of ozone ( reaction 3) or. Due to the implementation of the montreal protocol, which has limited, and is now probably reversing, the depletion of the stratospheric ozone layer, only age- related macular degeneration (amd) was the cause of 7% of blindness worldwide in 2010, and was the most frequent cause of blindness in.
Depletion of the stratospheric ozone layer has led to increased solar uv-b radiation (280-315 nm) at the surface of the earth some types of cataract and for pterygium, the evidence is less strong, although increasing, for ocular melanoma, and is equivocal at present for age-related macular degeneration.
The depletion of the ozone layer has health consequences for your skin and eyes , but there are ways you can prevent these adverse effects that sunlight exposure (possibly the blue light component—in the higher-energy spectrum of visible light closest to ultraviolet light) may be implicated in macular degeneration.