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¹Malatya EGM Hayat Hospital, Eye Clinic, Malatya/TURKEY
²M.D. Asistant Professor, Abant İzzet Baysal University Faculty of Medicine, Department of Ophthalmology, Bolu/TURKEY
³M.D. Professor, Abant İzzet Baysal University Faculty of Medicine, Department of Ophthalmology, Bolu/TURKEY Purpose: To evaluate anterior chamber depth (ACD) and spherical refractive changes in patients undergoing phacoemulsification surgery and in the bag implantation of different types of intraocular lens (IOL).
Materials and Methods: This prospective study included 80 eyes of 80 patients undergoing phacoemulsification surgery and implantation of 4 different types of IOL between June 2011 and May 2012. Patients were divided into four groups according to the type of implanted IOL (Acriva UD 613, Alcon Acrysof MA60BM, Eyecryl HS AS600, Zaraccom F 260). There were 20 patients in each group. Patients were examined on the postoperative first week, first month and third month. Measurements of intraocular pressure, axial length, ACD and calculation of IOL diopters with SRK II formula were carried out preoperatively. Measurements of ACD and refraction were carried out on postoperative first week, first month and third month. Significance of ACD and refraction changes between preoperative and postoperative first week, first month and third month were investigated.
Results: We determined increase in ACD values for all patients. Comparison of the preoperative ACD and the postoperative first week ACD measurements revealed greatest ACD increase in Alcon IOL implanted group. Comparison of the postoperative first week ACD and the postoperative first and third month ACD measurements revealed greatest ACD decrease, which was also statistically significant in Zaraccom IOL implanted group (p=0.003). We did not determine statistically significant differences in the spherical refraction of any group between the first postoperative week and the first postoperative month (p values for Acriva, Alcon, Eyecryl and Zaraccom were 0.178, 0.154, 0.153 and 0.206, respectively).
Conclusion: It is important to be aware of the factors affecting the target refraction other than ACD associated with IOL to improve refractive outcomes. Keywords : Intraocular lens, cataract, anterior chamber depth, refraction