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Glaucoma:
Glaucoma
is a symptomatic condition, not a disease. The characteristic physical
sign is increased intra ocular pressure (IOP). A sustained increase
in IOP may be due to an increase in the formation of the aqueous
humour, a difficulty in its exit or a raised pressure in the episcleral
veins. Increase in IOP causes pathological changes in the optic
disk and typical defects in the field of vision and eventually blindness.
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