Author(s): Sundelin K, Sjstrand J
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Abstract PURPOSE: To find out whether there is a "hidden" group of patients with posterior capsule opacification (PCO) 5 years after cataract surgery and to establish the incidence of PCO. SETTING: Department of Ophthalmology, Sahlgrenska University Hospital, Gothenburg, Sweden. METHODS: A random sample (n = 164) was selected among patients who had extracapsular cataract extraction (ECCE) with intraocular lens implantation in 1991 (N = 1672). All surgically treated cases that required neodymium:YAG (Nd:YAG) laser capsulotomy (n = 37) within the first 5 years after surgery were recorded. Patients still alive 5 years after surgery who had not had Nd:YAG treatment were offered an eye examination to determine whether PCO requiring capsulotomy existed. RESULTS: Thirty-seven of 110 patients (34\%) alive 5 years after surgery had an Nd:YAG capsulotomy during the first 5 postoperative years. Follow-up was possible in 51 of 73 untreated patients (70\%). Clinically significant PCO according to specified criteria was found in 7 cases (14\%). Half of them would benefit from treatment; the other half had visual impairment from other eye disease. CONCLUSIONS: The estimated incidence of PCO 5 years after ECCE was 43\%. Five years after surgery, there was an untreated group with clinically significant PCO, approximately 9\% of the surgically treated population. This hidden group must be considered in PCO studies.
This article was published in J Cataract Refract Surg
and referenced in Journal of Clinical & Experimental Ophthalmology