ABSTRACT oIQor
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Purpose: To quantify the prevalence of cataract, the outcomes =/Vr,y$
of cataract surgery and the factors related to adHHnH`,
unoperated cataract in Australia. D@7\Fg
Methods: Participants were recruited from the Visual D{PO!WzW
Impairment Project: a cluster, stratified sample of more than OB;AgE@
5000 Victorians aged 40 years and over. At examination ~^KemwogPN
sites interviews, clinical examinations and lens photography {*yhiE ,
were performed. Cataract was defined in participants who |JnJ=@-y
had: had previous cataract surgery, cortical cataract greater & i)p^AmM
than 4/16, nuclear greater than Wilmer standard 2, or \
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posterior subcapsular greater than 1 mm2. M5[AA/@
Results: The participant group comprised 3271 Melbourne "e@JMS
residents, 403 Melbourne nursing home residents and 1473 CdC&y}u
rural residents.The weighted rate of any cataract in Victoria RVlC8uJ;P
was 21.5%. The overall weighted rate of prior cataract +'y$XR~W {
surgery was 3.79%. Two hundred and forty-nine eyes had Wd3/Y/MD
had prior cataract surgery. Of these 249 procedures, 49 Q<w rO
(20%) were aphakic, 6 (2.4%) had anterior chamber {CYFM[V
intraocular lenses and 194 (78%) had posterior chamber $l7
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intraocular lenses.Two hundred and eleven of these operated Y{f;qbEQH'
eyes (85%) had best-corrected visual acuity of 6/12 or +p>tO\mo
better, the legal requirement for a driver’s license.Twentyseven J XbG|L
(11%) had visual acuity of less than 6/18 (moderate s{'r'`z.
vision impairment). Complications of cataract surgery w)5eD+n\-
caused reduced vision in four of the 27 eyes (15%), or 1.9% G#
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of operated eyes. Three of these four eyes had undergone u\<