Abstract
Purpose :
To evaluate the effect of phacoemulsification and intraocular lens (IOL) implantation on anterior chamber angle in eyes with medically uncontrolled filtered primary angle-closure glaucoma by indentation gonioscopy and ultrasound biomicroscopy (UBM).
Methods :
Forty-four eyes of 37 consecutive patients with medically uncontrolled PACG coexisting cataracts with a surgical history of trabeculectomy were included in this study. Each patient underwent phacoemulsification and IOL implantation. Indentation gonioscopy and UBM were performed preoperatively and then again 3 months after surgery. The main outcome measures were best-corrected visual acuity (BCVA), intraocular pressure (IOP), number of anti-glaucoma medications and anatomical changes in the anterior chamber angle.
Results :
The mean logarithm of the minimum angle of resolution BCVA significantly improved from 0.52 ± 0.30 preoperatively to 0.26 ± 0.23 postoperatively (p < 0.001). The mean IOP significantly decreasedfrom 24.33 ± 9.65 mmHg preoperatively to 18.04 ± 7.86 mmHg postoperatively (p < 0.05). 001). The median number of anti-glaucoma medications decreased from 2 preoperatively to 1 postoperatively (p < 0. 001). There was no significant difference in the extent of peripheral anterior synechia after the surgery (p > 0.05). Someparameters, including anterior central chamber depth, angle opening distance at 500 μm, trabecular-iris angle and scleral ciliary process angle, were significantly higher after than before surgery (p < 0.001). However, the crystalline lens rise was significantly smaller following surgery (p <0.001).
Conclusions :
Phacoemulsification and IOL implantation reduced IOP and improved vision in eyes with medically uncontrolled filtered PACG.
This is a 2020 ARVO Annual Meeting abstract.