[Refractive precision and objective quality of vision after toric lens implantation in cataract surgery].
OBJECTIVE
To study efficacy and predictability of toric IOL implantation for correction of preoperative corneal astigmatism by analysing spherocylindrical refractive precision and objective quality of vision.


METHODS
Prospective study of 13 eyes undergoing micro-incisional cataract surgery through a 1.8mm corneal incision with toric IOL implantation (Lentis L313T(®), Oculentis) to treat over one D of preoperative corneal astigmatism. Preoperative evaluation included keratometry, subjective refraction, and total and corneal aberrometry (KR-1(®), Topcon). Six months postoperatively, measurements included slit lamp photography, documenting IOL rotation, tilt or decentration, uncorrected visual acuity, best-corrected visual acuity and objective quality of vision measurement (OQAS(®) Visiometrics, Spain).


RESULTS
Postoperatively, mean uncorrected distance visual acuity was 8.33/10 ± 1.91 (0.09 ± 0.11 LogMar). Mean postoperative refractive sphere was 0.13 ± 0.73 diopters. Mean refractive astigmatism was -0.66 ± 0.56 diopters with corneal astigmatism of 2.17 ± 0.68 diopters. Mean IOL rotation was 4.4° ± 3.6° (range 0° to 10°).


CONCLUSIONS
Mean rotation of this IOL at 6 months was less than 5°, demonstrating stability of the optic within the capsular bag. Objective quality of vision measurements were consistent with subjective uncorrected visual acuity.


CONCLUSIONS
Implantation of the L313T(®) IOL is safe and effective for correction of corneal astigmatism in 1.8mm micro-incisional cataract surgery.
Service d'ophtalmologie, CHU de Bretonneau, 2, boulevard Tonnellé, 37000 Tours, France. arnauddebois@hotmail.fr
A
A
Debois
Y
Y
Nochez
C
C
Bezo
D
D
Bellicaud
P-J
PJ
Pisella
D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000453:epidemiology / Q000503:physiopathology / Q000534:rehabilitation / Q000601:surgery*; D002387:Cataract Extraction / Q000009:adverse effects / Q000379:methods; D015331:Cohort Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects / Q000379:methods; D007910:Lenses, Intraocular; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology; D011786:Quality Control; D012029:Refraction, Ocular / Q000502:physiology*; D012399:Rotation; D014785:Vision, Ocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology*