Postoperative astigmatism and rotational stability after Artisan toric phakic intraocular lens implantation
- 1 September 2003
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of Cataract & Refractive Surgery
- Vol. 29 (9), 1761-1766
- https://doi.org/10.1016/s0886-3350(03)00014-2
Abstract
To evaluate deviations in the axis (intended versus achieved) and postoperative astigmatism after implantation of an Artisan toric phakic intraocular lens (IOL). University Eye Hospital, Mainz, Germany. This prospective study comprised 29 eyes with high ametropia and astigmatism. All eyes had uneventful implantation of a toric phakic IOL through a superior scleral tunnel incision at 12 o’clock. After a minimum of 6 months, the uncorrected visual acuity (UCVA), best correct visual acuity, refraction, and astigmatism were analyzed in all eyes. A multivariate analysis of postoperative astigmatism was performed. After a follow-up of at least 6 months, 95% of eyes were within ±1.00 diopter (D) of emmetropia and 85% of eyes has a UCVA of 20/30 or better. The difference between the mean intended cylinder axis and achieved cylinder axis was 3.9 degrees (median 3 degrees; range to 13 degrees). The difference between the mean intended axis and the achieved axis between miosis and mydriasis was 1.8 degrees (median 1.5 degrees; range 0 to 5 degrees). The mean postoperative astigmatism after 6 months was 0.56 D with an axis of 31 degrees. Doubled-angle scatterplot analysis showed a tendency toward more flattening in the vertical meridian. During the 6-month follow-up, no significant rotation was observed after implantation of Artisan toric phakic IOLs to correct high ametropia. A sutureless sclerocorneal superior approach for phakic IOL insertion resulted in moderate to low astigmatism. Induced astigmatism should be taken into consideration during preoperative planning.Keywords
This publication has 15 references indexed in Scilit:
- Toric phakic intraocular lens: European multicenter studyOphthalmology, 2003
- Torische IntraokularlinsenDer Ophthalmologe, 2001
- Prospective evaluation of a plate haptic toric intraocular lensEye, 2001
- Analysis of aggregate surgically induced refractive change, prediction error, and intraocular astigmatismJournal of Cataract & Refractive Surgery, 2001
- Multivariate analysis of refractive dataJournal of Cataract & Refractive Surgery, 2001
- How should we analyze astigmatic data?Journal of Cataract & Refractive Surgery, 2001
- Multicenter study of the Artisan phakic intraocular lensJournal of Cataract & Refractive Surgery, 2000
- Astigmatism correction with a foldable toric intraocular lens in cataract patientsJournal of Cataract & Refractive Surgery, 2000
- Toric intraocular lenses: Correcting astigmatism while controlling axis shiftJournal of Cataract & Refractive Surgery, 1994
- The Generalization of Student's RatioThe Annals of Mathematical Statistics, 1931