| Angle's classification, splint |
see under classification and splint; see also malocclusion.
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| Angle's s. |
a splint for fracture of the mandible.
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| angle-closure g. |
glaucoma caused by closure of the anterior angle by contact between the iris and the inner surface of the trabecular meshwork; called also closed-angle g., narrow-angle g., and pupillary block g. Click here to view image■Glaucoma. Impairment of aqueous outflow is caused by closure of the anterior angle, with apposition of the iris and trabecular meshwork, in angle-closure glaucoma (A), and by other obstruction in open-angle glaucoma (B).
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| angle-closure g., acute |
the third phase of angle-closure glaucoma and a grave medical emergency. Initially the symptoms resemble intermittent angle-closure glaucoma. Then, as the intraocular pressure continues increasing, the cornea becomes swollen and steamy; the iris fixes in mid-dilation; there is excruciating ocular pain radiating to the other areas of the trigeminal distribution, and there may be nausea and vomiting. Finally the eye may become red and congested; visual acuity fails rapidly as the cornea keeps swelling, and severe visual field loss or even blindness may result if the intraocular pressure is not lowered.
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| angle-closure g., chronic |
the fourth, last stage of angle-closure glaucoma, it is an irreversible increase of intraocular pressure resulting from progressive damage to the angle structures and from permanent, at least partial closure of the anterior angle by synechiae.
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