Abstract
Purpose: :
to evaluate the intraocular pressure (IOP) of dogs that had intraocular lens implantation after phacoemulsification.
Methods: :
phacoemulsification (Universal II-Alcon, USA) followed of intraocular lens implantation (polymethylmethacrylate- PMMA, biconvex, overall length 15mm and diameter 7mm, prolene flexible open loop, + 41D - Medphacos, Brasil) in the bag was performed on eleven adult, mixed breed, male or female dogs. The IOP was measured (TonoPen- Mentor, USA) on three moments of the day (8h, 16h and 24h) during the days 1, 2, 4, 7, 9, 14, 16, 21, and 28 of pos op (PO). On the day of the surgery the IOP was measured at 3, 6, 9 and 12 hours after surgery. Three days before the surgery and maintained all over the experiment the animals were put on a medication regimen consisted of: prednisone - 1mg/kg orally (Meticorten-Schering Plough, São Paulo, Brasil) the association of dexamethasone 1mg and chloramphenicol 5mg eye drops (Dexafenicol- Allergan, São Paulo, Brasil), and the association of atropine 1% and phenylephrine 10% eye drops (Ophthalmos, São Paulo, Brasil). The IOP was measured in this period to know if there was any effect caused by the medication. The non parametric Mann-Whitney test was used to evaluate the results.
Results: :
the medication regimen did not interfere in the IOP. A statistical elevation of the IOP was observed on the eyes without lens implantation when compared with the eyes with lens implantation starting at the 6 hours of PO and persisted during all experiment.
Conclusions: :
the lens implantation seems to be beneficial with respect of the IOP when a phacoemulsification is performed in dogs.
Keywords: intraocular lens • intraocular pressure