Changes in anterior lens density after Implantable Collamer Lens V4c implantation: a 4-year prospective observational study.
Implantable Collamer Lens V4c
anterior average lens density
myopia
pentacam imaging
Journal
Acta ophthalmologica
ISSN: 1755-3768
Titre abrégé: Acta Ophthalmol
Pays: England
ID NLM: 101468102
Informations de publication
Date de publication:
May 2021
May 2021
Historique:
revised:
11
07
2020
received:
24
05
2020
accepted:
12
07
2020
pubmed:
26
8
2020
medline:
1
12
2021
entrez:
26
8
2020
Statut:
ppublish
Résumé
To investigate the changes in anterior lens density with a Pentacam after Implantable Collamer Lens (ICL) V4c implantation in patients with myopia. This prospective case series examined 62 eyes of 32 patients (mean age, 28.5 ± 5.73 years) with myopia or myopic astigmatism after ICL V4c implantation. Uncorrected distance vision acuity, corrected distance vision acuity (CDVA), manifest refraction, intraocular pressure, anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA), endothelial cell density and Pentacam images of lens density were obtained pre- and postoperatively. The vault was obtained during the follow-ups. Patients were followed up for an average of 51 ± 2.7 months (range, 48-57 months). All surgeries were uneventful, without any complication. The efficacy and safety indices at the last follow-up were 1.03 ± 0.2 and 1.22 ± 0.22, respectively. No eye had decreased CDVA, and 66% eyes gained ≥1 line. Furthermore, refractive error in 90% eyes was within ±0.50 D and that of 100% was within ±1.0 D of the attempted refraction. Anterior average lens density (a-ALD) in the 0.5-, 1.0- and 1.5-mm depth zones increased by 10.41 ± 11.51%, 17.1 ± 11.09% and 16.76 ± 10.4%, respectively, compared to preoperative values (all p < 0.05). The change in a-ALD between two different age groups was not significant. Moreover, there were no significant correlations between the change in a-ALD and age, preoperative spherical equivalent, ACD, ACA, ACV or vault. Implantable Collamer Lens (ICL) V4c implantation demonstrates safety and efficacy for myopia correction. Although a-ALD increased slightly at 4 years postoperatively, no cataract developed during the follow-up. Further studies should investigate the reason for the postoperative increase in a-ALD.
Types de publication
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
326-333Subventions
Organisme : Joint research project of new frontier technology in municipal hospitals
ID : SHDC12018103
Organisme : the Shanghai Shenkang Hospital Development Center
ID : SHDC12016207
Organisme : the Project of Shanghai Science and Technology
ID : 17411950200
Organisme : the Project of Shanghai Science and Technology
ID : 19140900700
Organisme : the National Natural Science Foundation of China for Young Scholars
ID : 81600762
Organisme : the National Natural Science Foundation of China
ID : 81770955
Informations de copyright
© 2020 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
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