Phacoemulsification Versus Combined Phacoemulsification and Viscogonioplasty in Primary Angle-Closure Glaucoma

Abstract

Phaco alone and Phaco-VGP resulted in widening of the drainage angle, reduction of IOP, and PAS extent in PACG eyes. Phaco-VGP resulted in significantly more reduction of PAS and more opening of angle. However, it seems that additional VGP has no significant effect on long-term IOP.

Predictors of intraocular pressure change after phacoemulsification in patients with pseudoexfoliation syndrome

“…We did not find any association between angle, lens and anterior segment parameters with postoperative IOP change. The lack of an association between postoperative IOP and preoperative anterior segment angle width and ACD, both in this study and in previous studies on open angle eyes, suggests that mechanisms of IOP reduction other than macroscopic angle closure may be at play 17 33 34 39. This is especially true in PXS eyes in which microscopic TM changes and clogging may be implicated in the development of IOP rise.…”

Role of anterior segment optical coherence tomography in angle‐closure disease: a review

“…Several studies have demonstrated with AS‐OCT that angle‐closure eyes after PE alone, combined with viscogonioplasty or with goniosynechialysis (GSL) resulted in widening of the drainage angle, deepening of the anterior chamber and reduction of IOP and PAS extent . Tun et al .…”

“…Larger baseline I-Curv was the most significant predictor of angle widening after therapeutic interventions (especially ALPI), explaining about half of the variability in AOD750 change. 75 Several studies have demonstrated with AS-OCT that angle-closure eyes after PE alone, 76,77 combined with viscogonioplasty 78,79 or with goniosynechialysis (GSL) 80 resulted in widening of the drainage angle, deepening of the anterior chamber and reduction of IOP and PAS extent. [76][77][78][79][80] Tun et al studied the use of SS-OCT to assess the circumferential reduction of ITC area after PE alone compared with PE and GSL (PE + GSL) in eyes with synechial PACG (Fig.…”

Aqueous outflow facility after phacoemulsification with or without goniosynechialysis in primary angle closure: a randomised controlled study

“…One trial reported that viscogonioplasty had a significant additional benefit in terms of lowering IOP and reducing the medication required,12 while the other only found a reduction in PAS but not IOP with additional viscogonioplasty 13. There have not been any direct comparisons of viscogonioplasty and GSL to date.…”