Glaucoma has 3 types: open angle (chronic), closed-angle (acute) and secondary.    Causes  Glaucoma is caused by increased pressure in the eyeball as a result of a build-up of fluid, due to insufficient drainage. In open-angle glaucoma, this build-up occurs gradually over time, while in closed-angle glaucoma, a sudden blockage occurs. Secondary glaucoma can be [...]
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