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primary glaucoma in which the aqueous humor has free access to the trabecular meshwork.
chronic (open-angle) glaucoma
chronic glaucomaOphthalmology A disorder caused by ↑ intraocular pressure, 2º to blockage of the circulation of the aqueous humor, which may damage the optic nerve and cause blindness Clinical ↓ vision, halos around lights–worse at night, mild headaches Management Beta-blocker eyedrops
Glaucoma in which the tonometer indicates an intraocular pressure reading of up to 45 or 50, the anterior ciliary veins are enlarged, the cornea is clear, the pupil is dilated, and pain is present. During attacks vision is poor. The visual field may be normal. Cupping of the optic disk is not present in the early stages.
See also: glaucoma