COMPARATIVE FUNCTIONAL RESULTS BETWEEN THE FOLDABLE ARTIFICIAL AND RIGID CRYSTALLINES IN THE CATARACT SURGERY THROUGH PHACOEMULSIFICATION
Abstract:
In this study, we aimed at examining whether the functional outcome after cataract surgery by phacoemulsification depends or not on the type of artificial lens implanted. Material and method: Prospective clinical trial, that took place between 2001-2009; we divided the patients into 4 study groups, were we implanted artificial crystallines made of polymethyl-meta-acrylate (PMMA) - group 1 (a corneal incision of 6 mm) and group 2 (5.5 mm incision), or hydrophilic or hydrophobic acrylic lens –group 3 (the incision of 2.8 mm) and group 4 (2.2 mm). The analysis of the induced postoperative astigmatism was achieved using the SIAC_104 freeware. Results: Surgically induced astigmatism when incisions exceed 5.5 mm is statistically significant, being higher than that induced by the smaller incision of less than 3 mm. There is also a statistically significant difference of the induced astigmatism when analyzing the 2.8 mm versus the 2.2 mm incisions. Conclusions: The surgeon must take into account the surgical induced astigmatism for a predictable functional postoperative outcome, especially when one wants to implant a toric IOL. Changing the position of the main incision can help reducing the pre-existing astigmatism.
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