The eye is a sensitive but strongly built organ. Like everything made of flesh and blood, it is also subject to some problems, most of which are the byproducts of modern lifestyles. But advances in eye health care more than make up for the harmful effects, and today people have a much better chance of retaining their vision into old age. The eye is a sensor that converts the reflected light from an object into a signal that the brain uses to identify the image.,
Lola's Curmudgeonly Musings 
The eye is a sensitive but strongly built organ. Like everything made of flesh and blood, it is also subject to some problems, most of which are the byproducts of modern lifestyles. But advances in eye health care more than make up for the harmful effects, and today people have a much better chance of retaining their vision into old age. The eye is a sensor that converts the reflected light from an object into a signal that the brain uses to identify the image.,
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