CHARACTERISTICS OF MACULAR REGION AND VISUAL ACUITY IN GLAUCOMA PATIENTS AFTER PHACOEMULSIFICATION CATARACT SURGERY

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Abstract

Background: To improve safety of phacoemulsification cataract surgery, innovative technologies have been developed. Assessment of macular region status after the use of routine and innovative phaco technologies is of great interest. 

Aim: To compare effects of different phaco technologies on macular retina, visual acuity and intraocular pressure in patients with compensated glaucoma after uncomplicated phaco with intraocular lens implantation. 

Materials and methods: Phacoemulsification of immature cataract was performed in 52  patients (52 eyes) using Oertli machine and uniform method. Patients were divided into 3 groups. Group 1 included 20  patients (20  eyes) with simple (primary) openangle glaucoma (POAG) after phaco using easyPhaco technology. Group 2 included 20  POAG patients (20  eyes) after phaco using routine technology. Group  3 included 12  patients without glaucoma after routine phaco. EasyPhaco technology involves using of the new Oertli machine parameters, phaco tip with new geometry, flow rate/vacuum setting of 1:10. Preoperatively, in all 40 patients with glaucoma, normal values of intraocular pressure were achieved using antiglaucomatous therapies. Visual acuity, intraocular pressure and macular thickness by optical coherent tomography were measured before the surgery, in 1 and 6 weeks after the procedure.

 Results: Increase of macular thickness (by 12–30  mcm compared to baseline) was observed postoperatively in patients with and without glaucoma. After 1 week, mean macular thickness was significantly less in the easyPhaco group compared to routine phaco groups with and without glaucoma (221.5±15.4;238.3 ± 11.5 and 229.3 ± 16.9 mcm,respectively, p < 0.05). In the groups 1 and 3, macular thickness returned to preoperative values after 6 weeks (group 1: 210.5 ± 13.8 and 209.7 ± 16.3 mcm; group  3: 211.1 ± 14.4 and 211.1 ± 15.8  mcm,respectively). By contrast, after routine phaco technology in POAG patients, macular edema persisted after 6  weeks (mean macular thickness 228.2 ± 13.5  mcm compared to 208.2 ± 17.6  mcm preoperatively). 

Conclusion: In patients with glaucoma, use of easyPhaco technology is associated with less effects on the retina and less risk of macular edema after the surgery.

 

About the authors

E. N. Mityaeva

Mytishchi City Clinical Hospital

Author for correspondence.
Email: mityaevadoc@mail.ru
Ophthalmologist, the Head of the Ophthalmology Department Russian Federation

I. A. Loskutov

Eye Microsurgery Center of the NonGovernmental Healthcare Institution “N.A. Semashko Railroad Hospital”

Email: fake@neicon.ru

MD, PhD, Chief

Russian Federation

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Copyright (c) 2015 Mityaeva E.N., Loskutov I.A.

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