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¹M.D. Asistant Professor, Mersin University Faculty of Medicine, Department of Ophthalmology, Mersin/TURKEY
²M.D. Asistant Professor, Abant İzzet Baysal University Faculty of Medicine, Department of Ophthalmology, Bolu/TURKEY
³M.D. Associate Professor, Atatürk Trainig and Research Hospital Eye Clinic, Ankara/TURKEY
⁴M.D., Mersin University Faculty of Medicine, Department of Ophthalmology, Mersin/TURKEY
⁵M.D. Asistant, Fatih University Faculty of Medicine, Department of Ophthalmology, Ankara/TURKEY
⁶M.D. Asistant Professor, Fatih University Faculty of Medicine, Department of Anesthesiology and Reanimation, Ankara/TURKEY
⁷M.D. Professor, Mersin University Faculty of Medicine, Department of Ophthalmology, Mersin/TURKEY
⁸M.D. Professor, Fatih University Faculty of Medicine, Department of Ophthalmology, Ankara/TURKEY Purpose: To evaluate the effectiveness of the automated loop system for fragmentation of the lens nucleus in an experimental rabbit model.
Materials and Methods: Sixteen albino New Zealand rabbits were grouped into three: In group 1 (n=6) soft rabbit lenses were divided into multiple pieces with automated loop system and removed through 5mm corneal incision. In group 2 (n=4), rabbit lenses were extracted by the same method as group 1. Thereafter, hard human lens was inserted into the anterior chamber; divided and removed by the loop system. Group 3 was composed of 6 rabbits that had ECCE surgery. The corneal edema, conjunctival hyperemia, intraocular pressures were evaluated on postoperative 2nd and 7th days with biomicroscopy and Schiotz tonometry.
Results: In group 1 and 2, soft rabbit nuclei and hard mature human nuclei could be divided into many small pieces by the automated loop system. No significant intraoperative and postoperative complications were developed in any of the treated rabbit eyes. The rate of the corneal edema in group 1 was similar to those of group 3. The corneal edema and conjunctival hyperemia rates were higher in the group 2 compared to both group 1 and group 3. However, the differences between groups for any of the parameters were not statistically significant (p>0.05).
Conclusion: The automated loop system divided both the soft rabbit and hard human nucleus successfully into multiple pieces and the nucleus pieces can easily be removed from 5 mm corneal incision. Keywords : Automated loop system, hard cataracts, phacofragmentation, cataract surgery