Posters
Capsular tension ring implantation during the phacoemulsification in cases with zonular weakness
Poster Details
First Author: E.Danilenko RUSSIA
Co Author(s): A. Kulikov S. Churashov .
Abstract Details
Purpose:
To compare postoperative results of phacoemulsification, complicated by zonular weakness, in case of capsular tension ring implantation and without it.
Setting:
Ophthalmology department of Medical Military Academy named after S.M.Kirov
Methods:
The study enrolled 39 patients (40 eyes) with cataract, complicated by zonular weakness (14 women, 25 men, 72,2±12,1 years old). All of the patients were undergone phacoemulsification with IOL implantation and a capsular tension ring (CTR) if it was necessary. After 1, 3 and 6 months postoperatively refractometry, visual acuity measurement, optical biometry, ultrasound biomicroscopy and OCT of the anterior segment were carried out.
Results:
Patients were divided into 2 groups. In I group (27 eyes) standard phacoemulsification was provided. In II group (13 eyes) it was necessary to implant CTR. 1 patient was excluded due to the extracapsular cataract extraction. 6 months postoperatively UCVA was significantly higher in group II (0,65±0,16 and 0,37±0,19, р=0,09, p=0.09), upright angle of IOL tilt (0,27±0,34° and 1,35±0,44°, р=0,00), total zonnular length (14,34±0,88 and 20,22±0,18 mm, р=0,00), maximal value of zonular gap (1,94±0,22 and 2,42±0,18 mm, р=0,00) and the value of IOL decentration (0,28±0,24 and 0,78±0,22 mm, р=0,00) were significantly less in group II.
Conclusions:
OCT of the anterior segment of the eye and ultrasound biomicroscopy application after phacoemulsification gives a great capacity in IOL-capsular complex visualization and measurement. Implantation of capsular tension ring during phacoemulsification, complicated by zonular weakness due to a more regular distribution of zinn ligament tension results in IOL tilt and decentration minimization and increase of UCVA in the long-run prospect.
Financial Disclosure:
None
