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terminology and guidelines for glaucoma ii - Kwaliteitskoepel

terminology and guidelines for glaucoma ii - Kwaliteitskoepel

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The optic disc rim may show atrophy with an afferent pupillary defect<br />

Symptoms:<br />

Mild, intermittent symptoms of acute angle-closure type<br />

2.4.1.3 - Chronic Angle-Closure Glaucoma (CACG)<br />

Etiology: permanent synechial closure of any extent of the chamber angle as confirmed by indentation gonioscopy.<br />

Pathomechanism: see Ch. 2.4.1<br />

Features:<br />

Signs:<br />

Peripheral anterior synechiae of any degree at gonioscopy<br />

IOP elevated to a variable degree depending on the extent of angle-closure, above 21 mm Hg<br />

Visual acuity according to functional status (may be normal)<br />

Damage of optic nerve head compatible with <strong>glaucoma</strong><br />

Visual field defects “typical” of chronic <strong>glaucoma</strong> may be present<br />

Superimposed intermittent or acute angle-closure possible<br />

Symptoms:<br />

Visual disturbances according to functional states<br />

Usually no pain; sometimes discom<strong>for</strong>t<br />

Transient “haloes” when intermittent closure of the total circumference causes acute IOP elevations<br />

2.4.2 - STATUS POST ACUTE ANGLE-CLOSURE ATTACK<br />

Etiology: previous episode of acute angle-closure attack<br />

Pathomechanism: see Ch. 2.4.1<br />

Features:<br />

Signs:<br />

Patchy iris atrophy<br />

Iris torsion/spiralling<br />

Posterior synechiae<br />

Pupil either poorly reactive or non reactive<br />

“Glaukomflecken” of the anterior lens surface<br />

Peripheral anterior synechiae on gonioscopy<br />

Endothelial cell count can be decreased<br />

2.4.3 - THE “OCCLUDABLE” ANGLE; ACR (Angle-Closure Risk)<br />

Etiology: pupillary block, plateau iris or lens; each component plays different roles in different eyes<br />

Pathomechanism: see Ch. 2.4.1<br />

Features:<br />

Signs:<br />

Iridotrabecular apposition <strong>and</strong>/or PAS<br />

IOP elevation may be present<br />

Fellow eye of acute angle-closure attack<br />

Fellow eye of documented non-secondary angle-closure<br />

Ch. 2 - 16 EGS

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