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Abstract #28061 Published in IGR 13-1
Classification of primary angle closure disease
Sihota RCurrent Opinions in Ophthalmology 2011; 22: 87-95
PURPOSE OF REVIEW: Primary angle closure disease, PACD, has had a plethora of classifications and terminologies. The International Society of Geographical and Epidemiological Ophthalmology (ISGEO) classification was a simple classification, extremely useful in surveys, but could not be clinically applied because of the varied presentation of PACD. RECENT FINDINGS: Reviewing the literature, it was seen that the landmarks in progression of PACD were an anatomical predisposition; iridocorneal apposition/adhesions; chronic rise in intraocular pressure (IOP), despite an iridotomy; and glaucomatous optic neuropathy. Therefore, a staging system for PACD is proposed. PACD suspect - occludable angle; PACD I - occludable angle with evidence of closure, but a normal IOP after iridotomy; PACD II - peripheral anterior synechiae in an occludable angle with a chronically raised IOP after iridotomy, with or without a suspicious optic nerve head; and PACD III - peripheral anterior synechiae in an occludable angle, with a raised IOP after iridotomy, and glaucomatous optic neuropathy. SUMMARY: This proposed classification has amalgamated all the clinically described subtypes of PACD - subacute, acute, chronic, symptomatic, and asymptomatic - into a staging, based on extent of damage to the outflow channels and optic nerve head, providing a basis for standardized therapy and possibly a quantifiable long-term prognosis. (copyright) 2011 Lippincott Williams & Wilkins, Inc.
R. Sihota. Glaucoma Research Facility and Clinical Services, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. rjsihota@hotmail.com
Classification:
9.3.5 Primary angle closure (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
