Rotational stability of modified toric intraocular lens

We evaluated the rotational stability of a new toric intraocular lens (IOL), HOYA XY-1 toric IOL that is an improved version of HOYA 355 toric IOL, with longer overall length (13.0 mm vs. 12.5 mm), shortened unfolding time, and texture processing of the surface of haptics. Data from 193 eyes of 165...

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Bibliographic Details
Published in:PloS one 2021-03, Vol.16 (3), p.e0247844-e0247844
Main Authors: Osawa, Ryoko, Oshika, Tetsuro, Sano, Masahiko, Yuguchi, Takuma, Kaiya, Tadayoshi
Format: Article
Language:English
Subjects:
Astigmatism
Biology and Life Sciences
Cataracts
Cornea
Data analysis
Editing
Engineering and Technology
Evaluation
Eye surgery
Image processing
Image resolution
Intraocular lenses
Markers
Medicine and Health Sciences
Ophthalmology
Patients
Social Sciences
Statistical analysis
Statistical analysis of data
Surgeons
Surgery
Surgical outcomes
Testing
Topography
User statistics
Variance analysis
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Summary:We evaluated the rotational stability of a new toric intraocular lens (IOL), HOYA XY-1 toric IOL that is an improved version of HOYA 355 toric IOL, with longer overall length (13.0 mm vs. 12.5 mm), shortened unfolding time, and texture processing of the surface of haptics. Data from 193 eyes of 165 patients (76.4 ± 8.3 years old) with preoperative corneal astigmatism exceeding 0.75 diopters who had undergone phacoemulsification and toric IOL implantation were collected and analyzed. Corneal astigmatism, refractive astigmatism, and uncorrected (UDVA) and corrected distance visual acuity (CDVA) were evaluated before and 1 day, 1 week, and 1 month after surgery. The degree of IOL decentration, IOL tilt, and toric axis misalignment was assessed at 1 day and 1 month postoperatively. Fifty eyes received AcrySof toric IOL, 51 eyes TECNIS toric IOL, 46 eyes HOYA 355 toric IOL, and 46 eyes HOYA XY-1 toric IOL. The amount of axis misalignment from the intended axis was significantly different among IOLs (p = 0.004, one-way ANOVA), and HOYA XY-1 showed significantly less amount of axis misalignment than TECNIS (p = 0.020, Tukey's multiple comparison) and HOYA 355 (p = 0.010). The proportion of eyes that showed axis misalignment
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0247844