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Postoperative complications of lens surgery in dogs
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Lens surgery has become a standard therapy in veterinary ophthalmology. Different surgical procedures have been described. This interesting publication describes the most common complications, basing on 140 cataract extractions...
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The goal of this study was to compare the results of one surgeon in four different methods of cataract extraction without intraocular lens implantation.
114 dogs with 70 nucleus expressions (ECLE), 42 phacoemulsifications (PHACO), 17 intracapsular lens extractions (ICLE) as well as one irrigation and aspiration (I/A) were re-evaluated. Six dogs were not available for re-evaluation. Four dogs with traumatic cataract were evaluated separately.
The most common complication was corneal edema, which occurred rarely after PHACO (6%) compared to ECLE (34%) or ICLE (24%).
Posterior synechia and dyscoria was seen more frequently after ECLE (30%) or PHACO (33%) compared to ICLE (12%). Within two years secondary cataract was noted more frequently after PHACO (50%) than after ECLE (30%).
In 98 dogs the cosmetic and functional results of 62 ECLE, 39 PHACO, 12 ICLE and one I/A were evaluated. Within the first four weeks 84% of the PHACO, 66% of the ECLE and 50% of the ICLE were evaluated as successful.
Two years after surgery the rate of success was 67% with PHACO, 42% with ECLE and 11% with ICLE. In patients with diabetes mellitus a higher success rate was achieved than in nondiabetic dogs (within four weeks 84.0% vs. 66.7% and after two years 55.6% vs. 26.1%).
Furthermore surgery in dogs with immature cataracts was more successful than in dogs with more developed stage of cataract (within four weeks in immature cataracts 87.0%, in mature 73.6% and in hypermature 40.0%).
In our study, phacoemulsification was superior compared to the other techniques. Therefore phacoemulsification is strongly recommended in early stages of cataract and in diabetic patients.
Source: www.fecava.org
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