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Diabetes
...  with diabetes is retinopathy; however, other eye conditions such as cataracts and glaucoma are also more likely to occur in people with diabetes. Diabetic retinopathy simply means disease of the retina. It occurs when diabetes damages the very fine blood vessels in the retina at the back of the eye. Once damaged, the retina does not repair and vision cannot be restored; so early detection  ...

Hand Muscles
...  the forearm, but the tendons extend to the hands. They acquired the name extrinsic because the muscle belly is outside the hand. Whenever you move your hands, fibrous connective tissue, known as the retinaculum, covers the flexor and extensor tendons to keep them in place while accomplishing the movement. Without the retinaculum, it is impossible to coordinate the movements in your hands. Major  ...

Eyeball
...  the fibrous tunic, the vascular and the nervous tunic. The fibrous tunic consists of the sclera and the cornea; the vascular has the choroid, ciliary body and the iris; and the nervous has the retina. Each of these coats help in keeping the functions of the eyes. Sclera The sclera is the outmost covering of the eye and is found mostly on the posterior part of the eyeball. Dense  ...

Visual Sense
...  sense. If you lose it, it will be very difficult to adapt to the colorful world. The eye is like a camera. The iris permits the entry of light; whereas the lens, cornea and humors focus it to the retina. However, humans do not see all light. Only the visible light found in the electromagnetic spectrum is perceptible to the human eye. To help you understand how the eye perceives the images  ...


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