Observational studyPloS one2017
Cataract surgery causes biomechanical alterations to the eye detectable by Corvis ST tonometry.
Observational study in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Association of Corneal Biomechanical Properties with Fingertip-Measured Advanced Glycation End Products and Carotenoids in Glaucoma Patients.Journal of clinical medicine · 2026Article
- Changes of corneal biomechanical and biometrical properties after combined phacoemulsification with viscocanalostomy surgery in patients with open-angle glaucoma.BMC ophthalmology · 2025Article
- Age-related analysis of corneal biomechanical parameters in healthy Chinese individuals.Scientific reports · 2024Article
- Impacts and Correlations on Corneal Biomechanics, Corneal Optical Density and Intraocular Pressure after Cataract Surgery.Diagnostics (Basel, Switzerland) · 2024Article
- Corneal biomechanics and diagnostics: a review.International ophthalmology · 2024Review
- The short-term effects of wearing swimming goggles on corneal biomechanics.International ophthalmology · 2022Article
- Evaluation of corneal hysteresis after pars plana vitrectomy combined phacoemulsification and intraocular lens implantation.Scientific reports · 2022Article
- Micron-scale hysteresis measurement using dynamic optical coherence elastography.Biomedical optics express · 2022Article
- Short term changes in corneal stress-strain index and other corneal biomechanical parameters post-laser in situ keratomileusis.Indian journal of ophthalmology · 2021Article
- Age-related variation in corneal biomechanical parameters in healthy Indians.Indian journal of ophthalmology · 2020Article
- Association between corneal biomechanical parameters and myopic refractive errors in young Indian individuals.Taiwan journal of ophthalmologyArticle
- Correlations between corneal biomechanics and specular microscopy in patient with cataract.Romanian journal of ophthalmologyObservational
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeModern cataract surgery is generally considered to bring about modest and sustained intraocular pressure (IOP) reduction. However, the pathophysiological mechanism for this remains unclear. Moreover, a change in ocular biomechanical properties after surgery can affect the measurement of IOP. The aim of the study is to investigate ocular biomechanics, before and following cataract surgery, using Corvis ST tonometry (CST). PATIENTS AND
methodsFifty-nine eyes of 59 patients with cataract were analyzed. IOP with Goldmann applanation tonometry (IOP-G), axial length, corneal curvature and CST parameters were measured before cataract surgery and, up to 3 months, following surgery. Since CST parameters are closely related to IOP-G, linear modeling was carried out to investigate whether there was a change in CST measurements following cataract surgery, adjusted for a change in IOP-G.
resultsIOP-G significantly decreased after surgery (mean±standard deviation: 11.8±3.1 mmHg) compared to pre-surgery (15.2±4.3 mmHg, P<0.001). Peak distance (the distance between the two surrounding peaks of the cornea at the highest concavity), maximum deformation amplitude (the movement of the corneal apex from the start of deformation to the highest concavity) and A1/A2 velocity (the corneal velocity during inward or outward movement) significantly increased after cataract surgery (P<0.05) while radius (the central curvature radius at the highest concavity) was significantly smaller following cataract surgery (P<0.05). Linear modeling supported many of these findings, suggesting that peak distance, maximum deformation amplitude and A2 velocity were increased, whereas A2 deformation amplitude and highest concavity time were decreased (after adjustment for IOP change), following cataract surgery.
conclusionCorneal biomechanical properties, as measured with CST, were observed to change significantly following cataract surgery.
trial registrationJapan Clinical Trials Registry UMIN000014370.
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