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Бюллетень медицинских Интернет-конференций (ISSN 2224-6150) 2016. Том 6. № 5
ID: 2016-05-1150-T-6393 Тезис
Idiong Q.M., Bello I.O., Ugwu I.E.
The Results of Phacoemulsification with the Implantation of the Intraocular Lense
Saratov State Medical University n.a. V.I. Razumovsky, Оphthalmology Department Scientific supervisor: MD, PhD Tatyana V. Ryazantseva
Background. Phacoemulsification cataract surgery is a procedure in which an ultrasonic device is used to break up and then remove a cloudy lens, or cataract, from the eye to improve vision. The insertion of an intraocular lens (IOL) usually immediately follows phacoemulsification. A typical postoperative complication in cataract surgery is that the refractive power of the implanted IOL is often not sufficient for optimal vision, requiring the patient to use prescription eye wear. This is mainly because the eye is a complex optical system and the biometric data required for the calculation of the lOL's shape cannot be determined with sufficient precision before surgery. In particular, vision is strongly influenced by the radius of curvature of the cornea and the length of the eye ball. In addition, the exact location of the IOL in the capsular bag may change unpredictably during surgery or afterwards while the wound is healing, making the initial IOL design no longer optimal. Analysis of clinical trials indicates that about 80% of cataract patients have post-surgery vision that is within one diopter of the perfect vision, whereas another 10% have an even greater deviation of two or more diopters.
The aim of the study was to retrospectively evaluate the effectiveness and safety of phacoemulsification and intraocular lens implantation.
Material and method. The study involved a total number of 279 patients with senile cataract aged from 62 to 77 years, among them 155 females and 125 males. All patients underwent phacoemulsification with implantation of IOL "Rumex" or "Aspira". The vision acuity before surgery was 0.04-0.05.
Result. Postoperative visual acuity was analyzed on the fifth day after surgery and was: 0.5-0.7. Best corrected visual acuity (BCVA) improved in 204 of 279 eyes (73.1%). 75 (26.8%) patients needed spectacles (±1.0 D), mainly because of refractive error during examination before the surgical treatment.
Conclusion. Phacoemulsification with implantation of intraocular lens was effective in all studied cases but careful examination of the refractive power of lens must be taken before surgery to attain 100% result without prescription eye wear for optimal vision following cataract surgery.
Keywords: Phacoemulsification, Cataract Surgery, Intraocular lens
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