ArticleBMC ophthalmology2025
Changes of corneal biomechanical and biometrical properties after combined phacoemulsification with viscocanalostomy surgery in patients with open-angle glaucoma.
Article in BMC ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Precision Glaucoma Surgery: A Mechanism-Based Review of MIGS and Contemporary Surgical Pathways.Journal of clinical medicine · 2026Review
- Micropulse Laser Trabeculoplasty in Glaucoma: Efficacy and Safety in a Clinical Cohort.Medicina (Kaunas, Lithuania) · 2025Article
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Authors and funding
10 authors.
Funding
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Abstract
purposeTo assess corneal biomechanical changes after phacoemulsification and ab-externo viscocanalostomy (phaco-visco) surgery in patients with open-angle glaucoma (OAG).
methodsPatients with OAG and cataract, visual acuity < 20/40 Snellen, were included. Pre- and postoperative evaluations were performed. Keratometric and aberrometry assessments were done with Oculus Pentacam AXL, and corneal biomechanics were evaluated using Corvis ST. Wilcoxon signed-rank and Chi-square tests were used.
resultsThis study included 30 eyes from 28 patients with OAG who underwent phaco-visco surgery. The mean age was 67.57 ± 9.20 years, with 50% being male. The mean postoperative follow-up duration was 4.1 ± 2.1 months. Postoperatively, biomechanically corrected intraocular pressure (bIOP) significantly decreased (-1.8 ± 4.7, P = 0.008), while central corneal thickness (CCT) showed no significant change (+ 0.333 ± 9.536, P = 0.810). Significant increases were observed in deflection amplitude max (+ 0.841 ± 0.173, P = 0.002), peak distance (+ 0.242 ± 0.458, P = 0.001), front astigmatism (+ 0.210 ± 0.420, P = 0.013), index of height asymmetry (+ 3.146 ± 6.374, P = 0.015), and index of height deviation (+ 0.007 ± 0.010, P = 0.001). Additionally, anterior chamber (AC) parameters such as AC depth (P = 0.001) and AC volume (P < 0.001) significantly increased following surgery.
conclusionsThis study shows that phaco-visco surgery in OAG eyes may increase corneal softening, decrease bIOP without altering CCT, induce corneal front astigmatism, and cause AC parameters changes. Corvis ST helps for more accurate IOP assessment and toric IOL planning.
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