Effect of corneal incision features on anterior and posterior corneal astigmatism and higher-order aberrations after cataract surgery.
Aged
Astigmatism
/ epidemiology
Cataract Extraction
/ adverse effects
China
/ epidemiology
Cornea
/ diagnostic imaging
Corneal Topography
/ methods
Female
Follow-Up Studies
Humans
Incidence
Male
Postoperative Complications
/ epidemiology
Refraction, Ocular
/ physiology
Retrospective Studies
Visual Acuity
cataract surgery
clear corneal incision
higher-order aberrations
optical coherence tomography
surgically induced astigmatism
Journal
Acta ophthalmologica
ISSN: 1755-3768
Titre abrégé: Acta Ophthalmol
Pays: England
ID NLM: 101468102
Informations de publication
Date de publication:
Nov 2021
Nov 2021
Historique:
revised:
20
12
2020
received:
21
06
2020
accepted:
12
01
2021
pubmed:
6
3
2021
medline:
1
2
2022
entrez:
5
3
2021
Statut:
ppublish
Résumé
To evaluate the influence of 2.2 mm clear corneal incision (CCI) features in surgically induced astigmatism (SIA) and higher-order aberrations (HOAs) after cataract surgery. Right eyes of 92 subjects receiving 2.2 mm incision cataract surgery were involved. A total of 38 eyes were categorized as the intact incision group, and 54 eyes were the defective incision group. Pre- and postoperative (1 month and 6 months) corneal astigmatism and HOAs on anterior and posterior corneal surfaces, corneal volume, and corneal thickness (CT) were measured using Pentacam. The CCI features including incision length (IL), incision angles, distance from incision to central cornea (Dis-En/Ex), and CT at incision site were quantified using AS-OCT. The defective incision group showed shorter IL and larger incision angles [false discovery rate (FDR) - p < 0.05]. Changes in CT at incision site were more pronounced for the defective incision group (FDR - p < 0.05). Some SIA parameters were related to the certain specific CCI features, especially IL (FDR - p < 0.05). Both groups exhibited significant increased 6 mm posterior corneal tHOAs at 1 month (Bonferroni corrected - p < 0.01) and the defective incision group showed increased 6 mm posterior tHOAs at 6 months (Bonferroni corrected - p = 0.023). There were characteristic correlations between Zernike terms and CCI features including IL, CT, Dis-En/Ex, and incision angles at 1 month, especially over 6 mm zone. The CCI deformities can affect corneal recovery and induce more HOAs at 1 month postoperatively. Such effects became minor, but could persist until 6 months. The IL combined with Angle-En/Ex was important factor influencing CCI integrity and corneal optical quality.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e1027-e1040Subventions
Organisme : National Natural Science Foundation of China
ID : 81670842
Organisme : Natural Science Foundation of Zhejiang Province
ID : LQ20H120006
Informations de copyright
© 2021 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
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