Clinical Study
Eye (2005) 19, 765–769. doi:10.1038/sj.eye.6701648 Published online 10 September 2004
Long-term results of the management of silicone oil-induced raised intraocular pressure by diode laser cycloablation
S M S Ghazi-Nouri1, A N Vakalis1, P A Bloom1, C Bunce1 and D G Charteris1
1Vitreoretinal Research Department, Moorfields Eye Hospital, City Road, London, UK
Correspondence: SMS Ghazi-Nouri, Vitreoretinal Research Unit, Moorfields Eye Hospital, City Road, London, EC1V 2PD, UK. Tel: +44 20 75662283; Fax: +44 20 75662285; E-mail: snouri@doctors.org.uk
Received 18 December 2003; Accepted 1 June 2004; Published online 10 September 2004.
Abstract
Aims/background
To analyse the effectiveness and safety of cyclodiode treatment in eyes with silicone oil-related raised intraocular pressure (IOP) and to correlate the results with clinical features of treated eyes.
Methods
Retrospective review of case notes of all eyes that underwent cyclodiode treatment following injection of silicone oil at Moorfields Eye Hospital between April 1993 and January 2003 and were followed up for at least 1 year.
Results
In all, 38 patients were followed up for between 13 and 113 months. Totally, 17 had silicone oil in situat the time of first treatment. The mean pretreatment IOP was 31.4 mmHg (SD 10.9), reducing to 18.6 mmHg (SD 8.6) at 1 year and to 13.9 mmHg (SD 8.4) at the final follow-up visit (P<0.001). Before treatment, 28 (73.7%) patients were on two or more topical medications. This was reduced to 18 (47.4%) patients (P=0.013) at 1 year and 13 (34.2%) patients (P=0.0007) at final follow-up. Use of oral acetazolamide for glaucoma was reduced from 16 (42.1%) patients precyclodiode to five (13.2%) patients at 1 year (P=0.0034) and three (7.9%) patients at the final visit (P=0.001). Four patients (10.5%) at 1 year and five patients (13.2%) at the final visit had hypotony (defined as IOP of less than 5 mmHg). One patient had enucleation 75 months following first cyclodiode treatment.
Conclusion
Diode laser photocoagulation can successfully control silicone oil-induced raised intraocular pressure where medical treatment fails. Reduction of IOP appears to be maintained long term.
Keywords:
cyclodiode, silicone oil, glaucoma
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