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Astigmatism correction with toric intraocular lenses: wavefront aberrometry and quality of life
  1. Rita Mencucci1,
  2. Cristina Giordano1,
  3. Eleonora Favuzza1,
  4. Jean-Jacques Gicquel2,
  5. Leopoldo Spadea3,
  6. Ugo Menchini1
  1. 1Department of Specialised Surgical Sciences–Eye Clinic, University of Florence, Florence, Italy
  2. 2Department of Ophthalmology, Poitiers University Hospital, Poitiers Cedex, France
  3. 3Department of Biotechnological and Applied Clinical Sciences, Eye Clinic, University of L'Aquila, L'Aquila, Italy
  1. Correspondence to Dr R Mencucci, Department of Specialised Surgical Sciences–Eye Clinic, University of Florence, Largo Brambilla 3, Florence 50134, Italy; rita.mencucci{at}unifi.it

Abstract

Background/aim To evaluate wavefront aberrations and subjective quality of life after toric intraocular lens (TIOL) implantation.

Methods Three groups of subjects who underwent unilateral cataract surgery with intraocular lens (IOL) implantation were compared: (1) toric group (n=40): corneal astigmatism >1.50 D, implanted with Acrysof toric SN60TT IOL (Alcon Inc, Fort Worth,  Texas, USA); (2) astigmatic SN60AT group (n=40): corneal astigmatism >1.50 D, implanted with Acrysof SN60AT IOL; and (3) control group (n=40): corneal astigmatism <1.00 D, implanted with Acrysof SN60AT IOL. Uncorrected distance visual acuity (UDVA), refraction, lower order astigmatism (Z22, Z−22), Strehl ratio and the modulation transfer function area ratio were evaluated over a 3 month follow-up period. A standardised quality of life test (National Eye Institute Refractive Error Quality of Life Instrument-42) was distributed to both astigmatic groups 3 months postoperatively.

Results Postoperative UDVA and aberrometric values were significantly better (p<0.001) and mean postoperative spherical equivalent was significantly lower (p<0.05) in the toric and control groups compared with the astigmatic SN60AT group. The toric group had significantly better postoperative quality of life compared with the astigmatic SN60AT group (p<0.05).

Conclusions Acrysof TIOL implantation resulted in better visual, refractive and aberrometric results than SN60AT spherical IOL implantation in astigmatic patients, similar to the control group. The better objective optical and retinal image quality resulted in better subjective quality of life after TIOL implantation.

  • Lens and zonules
  • Treatment Surgery

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