title: Comparison of Verisyse and Veriflex Phakic Intraocular Lenses for Treatment of Moderate to High Myopia 36 Months after Surgery.
abstract: OBJECTIVE
  To compare refractive stability, endothelial cell count (ECC), incidence of complications, and patients' satisfaction between a rigid Verisyse (group I, n = 198) and foldable Veriflex (group II, n = 212) phakic intraocular lenses (pIOL) over 36 months postop.
  
  
  METHODS
  This was a retrospective study. Patients' satisfaction and incidence of photic phenomena were evaluated at one month and one year postop. Data were analyzed to determine difference between groups for astigmatism, mean spherical equivalent (MRSE), uncorrected (UDVA) and corrected (CDVA) monocular distance visual acuity, complication rate (acute and chronic), and ECC. Differences were considered statistically significant when p < 0.05.
  
  
  RESULTS
  Group II cases had significantly higher UDVA, CDVA, and lower astigmatism during the entire follow-up. There was no significant difference in mean MRSE or mean ECC postoperatively. In both groups, mean ECC reduced significantly at one month postop, followed by a gradual linear decline between 1 and 36 months of 22.4 cells/mm2/annum (group I) and 13.32 cells/mm2/annum (group II). Overall complication rates were ≤ 10% with no significant inter-group differences. Group I patients reported lower incidence of halos at one month but more problems with night vision at one year compared with group II. Overall satisfaction was high and total incidence of reported photic phenomena was low.
  
  
  CONCLUSIONS
  Both Verisyse and Veriflex pIOLs are effective in correcting myopia. The Veriflex lens demonstrated better refractive outcome; however, subclinical inflammation observed in the Veriflex group and potential influence of inflammation on ECC loss require further investigation.
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.
authors.forename: Maja
authors.initials: M
authors.lastname: Bohac
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.
authors.forename: Marija
authors.initials: M
authors.lastname: Anticic
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.
authors.forename: Natasa
authors.initials: N
authors.lastname: Draca
authors.affiliation: b Eye Hospital "Svjetlost," Banja Luka , Bosnia and Herzegovina.
authors.forename: Bojan
authors.initials: B
authors.lastname: Kozomara
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.
authors.forename: Iva
authors.initials: I
authors.lastname: Dekaris
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.
authors.forename: Nikica
authors.initials: N
authors.lastname: Gabric
authors.affiliation: a Specialty Eye Hospital "Svjetlost," Zagreb, Croatia, and School of Medicine , University of Rijeka , Rijeka , Croatia.|c NHS National Services Scotland , Edinburgh , UK.
authors.forename: Sudi
authors.initials: S
authors.lastname: Patel
mesh_terms: D000328:Adult; D001251:Astigmatism / Q000503:physiopathology; D002452:Cell Count; D055954:Corneal Endothelial Cell Loss / Q000473:pathology; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D047728:Myopia, Degenerative / Q000601:surgery; D017060:Patient Satisfaction; D054120:Phakic Intraocular Lenses / Q000592:standards*; D011183:Postoperative Complications; D012029:Refraction, Ocular / Q000502:physiology; D012189:Retrospective Studies; D014792:Visual Acuity / Q000502:physiology
keywords: Endothelial cells count loss; Veriflex; Verisyse; myopia; phakic intraocular lenses