10 Common Eye Diseases
Eye Disease #5: Glaucoma
Our eyeballs are almost hollow, except for a fluid called aqueous humour. This fluid will normally be drained from the eye when needed to allow it to be replaced by fresh fluid. If the fluid is not allowed to drain away, though, then this can increase the pressure inside the eye.
This added pressure can squeeze against the optic nerve. This will gradually cause progressive damage, leading to a deterioration in the patient’s sight. The reasons that the fluid is blocked from exiting the eye is not known, but we do know it is hereditary. Basically, if one of your parents has glaucoma, there’s a good chance that you will get it too.
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