Background: To comprehensively evaluate the agreement of component corneal aberrations from the newly updated wavefront analysis software of a swept-source optical coherence tomographer (SS-OCT) and a referential Placido-topography combined OCT device in elderly cataract patients.
Methods: Retrospective study including 103 eyes from 103 elderly patients scheduled for cataract surgery that were measured on the same day with a SS-OCT (Heidelberg Engineering, Germany) device and a Placido-topography combined OCT device (CSO, Italy). Anterior, total, and posterior corneal wavefront aberrations were evaluated for their mean differences and limits of agreement (LoA) via Bland-Altman plots. Vector analysis was additionally employed to compare corneal astigmatism measurements in dioptric vector space.
Results: Mean differences of all corneal aberrometric parameters did not exceed 0.05 μm. Total corneal aberrations were not significantly different from 0 except for vertical coma (- 0.04 μm; P = 0.003), spherical aberration (- 0.01 μm, P < 0.001), and root mean square (RMS) higher-order aberration (HOA) (0.03 μm, P = 0.04). The 95% LoA for total corneal aberration parameters between both devices were - 0.46 to 0.42 μm for horizontal astigmatism, - 0.37 to 0.41 μm for oblique astigmatism, - 0.19 to 0.17 μm for oblique trefoil, - 0.33 to 0.25 μm for vertical coma, - 0.20 to 0.22 μm for horizontal coma, - 0.22 to 0.20 μm for horizontal trefoil, - 0.11 to 0.08 μm for spherical aberration, and - 0.22 to 0.28 μm for RMS HOA. Vector analysis revealed no statistically significant mean differences for anterior, total, and posterior corneal astigmatism in dioptric vector space.
Conclusion: In eyes undergoing cataract surgery with a regular elderly cornea, corneal wavefront analysis from the SS-OCT device showed functional equivalency to the reference device. Nevertheless, clinically relevant higher order aberration parameters should be interpreted with caution for surgical decision-making.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10392018 | PMC |
| http://dx.doi.org/10.1186/s40662-023-00348-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluation of Ocular Parameters in Newly Diagnosed Obsessive-Compulsive Disorder Children With Eye-Rubbing Compulsion.
Clin Pediatr (Phila)
December 2024
Department of Child and Adolescent Psychiatry, Recep Tayyip Erdogan University, Rize Training and Research Hospital, Merkez/Rize, Turkey.
Purpose: To determine the ocular structural changes in obsessive-compulsive disorder (OCD) children with eye-rubbing compulsion.
Methods: Participants recruited at the child and adolescent psychiatry clinic were evaluated for the OCD diagnosis. All patients underwent imaging with Scheimpflug corneal topography (Sirius, CSO, Italy), Tomey EM-4000 specular microscopy (Nagoya, Japan), and Lenstar LS 900 (Haag-Streit AG, Switzerland) optical biometry.
An evaluation of corneal topographic changes in a large series of patients with vernal keratoconjunctivitis.
J Fr Ophtalmol
December 2024
Merkez Prime Hospital, Department of Ophthalmology, Kocaeli, Turkey.
Purpose: To evaluate corneal topographic indices and the prevalence of keratoconus in patients with vernal keratoconjunctivitis (VKC) and to compare these with normal individuals.
Methods: One-hundred twelve consecutive patients with VKC and 112 age- and sex-matched healthy individuals were included in this prospective study. Demographic characteristics were recorded, and complete ophthalmic examinations were performed for all participants.
Effects of customized corneal cross-linking on higher-order aberrations in progressive keratoconus and low-grade myopia.
Acta Ophthalmol
December 2024
Department of Clinical Sciences/Ophthalmology, Umeå University, Umeå, Sweden.
Objective: To evaluate the effects of customized corneal collagen cross-linking (CXL) on higher-order aberrations (HOAs) in keratoconus (KC): vertical coma (VC), horizontal coma (HC), spherical aberration (SA), trefoil (TF) and astigmatism, compared with the same effects in healthy eyes undergoing CXL for low-grade myopia.
Methods: This mixed-designed study included 38 eyes of 38 patients with KC, treated and followed prospectively, who received customized epi-on CXL in high oxygen, and a retrospective control group of 23 eyes from 23 patients who underwent central 4-mm CXL treatment for low-grade myopia. VC, HC, SA, TF and keratometry values were obtained from Pentacam HR® measurements at baseline and at 1, 6, 12 and 24 months post-treatment.
Characteristics of corneal aberration in patients with bilateral keratoconus and unilateral corneal Vogt's striae.
Int J Ophthalmol
December 2024
Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an 710004, Shaanxi Province, China.
Aim: To assess the corneal high-order aberration (HOA) and its correlation with corneal morphological parameters in patients with bilateral keratoconus (KCN) and unilateral Vogt's striae.
Methods: A total of 168 eyes of 84 patients with KCN, whose corneas had definite signs of unilateral Vogt's striae, were enrolled. Corneal HOA and morphological parameters were measured using Pentacam HR.
Influence of Biometric and Corneal Tomographic Parameters on Normative Corneal Aberrations Measured by Root Mean Square.
J Clin Med
November 2024
Centro Internacional de Oftalmología Avanzada, 06011 Badajoz, Spain.
: To determine the impact of corneal and biometry parameters on the normative root mean square (RMS) values of corneal aberrations measured at a 6 mm diameter. : The RMS values for corneal aberrations (anterior, posterior, and total) were measured along with corneal parameters using Scheimpflug tomography on 770 normal subjects. The biometric parameters were measured with an optical biometer.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!