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Rotational stability and refractive outcomes of a single-piece aspheric toric intraocular lens with 4 fenestrated haptics.

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PURPOSE To assess the outcomes of implantation of a single-piece toric intraocular lens (IOL) with 4 fenestrated haptics. SETTING IRCCS Fondazione Bietti, Rome, Italy. DESIGN Prospective case series. METHODS All… Click to show full abstract

PURPOSE To assess the outcomes of implantation of a single-piece toric intraocular lens (IOL) with 4 fenestrated haptics. SETTING IRCCS Fondazione Bietti, Rome, Italy. DESIGN Prospective case series. METHODS All patients who had implantation of the Mini Toric Ready IOL were consecutively enrolled. Intraoperatively, the IOL was aligned using an automated system. Follow-up visits were performed at 1 day, 1 week, and 1, 3, and 6 months. At each visit, retroillumination pictures were taken to assess IOL orientation; visual acuity and refraction were also measured. RESULTS The final analysis comprised 63 eyes (63 patients). From the first to the last follow-up, the mean arithmetic rotation was -0.2 degrees ± 3.5 (SD) (range -13 to +10 degrees) and the mean absolute rotation was 1.6 ± 3.1 degrees. Intraocular lens rotation from the first to the last examination was within 5 degrees in 92.1% of eyes and on consecutive visits, within 5 degrees in 98.4% or more of eyes. By 6 months, 10 IOLs (15.9%) had rotated clockwise and 10 counterclockwise. Linear regression did not show a statistically significant relationship between rotational stability and the axis of placement with any preoperative parameter (eg, axial length). The mean magnitude of preexisting corneal astigmatism was 1.9 ± 0.7 diopters (D) (range 0.76 to 3.72 D). At the last follow-up, the mean magnitude of refractive astigmatism was 0.5 ± 0.4 D (range 0.0 to 1.5 D); the difference was statistically significant (P < .05). CONCLUSION The toric IOL showed good rotational stability and is an option for correcting corneal astigmatism at the time of cataract surgery.

Keywords: rotational stability; fenestrated haptics; single piece; toric intraocular; intraocular lens

Journal Title: Journal of cataract and refractive surgery
Year Published: 2019

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