#ITRACE TORIC LENS ALIGNMENT HOW TO#
#ITRACE TORIC LENS ALIGNMENT MANUAL#
#ITRACE TORIC LENS ALIGNMENT TRIAL#

Simulated outcomes suggest that overall results for a group of patients whose toric IOL surgery planning is performed with the dual-zone automated keratometry data from the biometer will be equivalent to those when manual keratometry is used. Patient records at four clinical sites were reviewed to identify patients who had manual keratometry and biometry with the Lenstar LS 900 recorded before toric IOL implantation and refractive follow-up data after implantation. 2011 37:2181-7) evaluated simulated clinical outcomes in patients with toric IOLs calculated on the basis of dual-zone automated keratometry from an integrated optical biometer relative to manual keratometry. They concluded that cataract extraction with toric IOL implantation can be used to correct (irregular) astigmatism and to improve visual functioning in patients with mild to moderate amounts of stable keratoconus and cataract. No IOL misalignment or other complications occurred. Refractive astigmatism decreased by 70% in both eyes. Visser et al., ( Cornea 2011 30:720-3) reported 2 cases in which cataract extraction with foldable acrylic toric IOL implantation was used to correct corneal astigmatism (irregular) in patients (age > 60 years) with keratoconus and cataract. They concluded that cataract surgery with toric intraocular lens allows the correction of high degrees of regular corneal astigmatism. The average preoperative cylinder was 10.12D (range, 3.40-17.89D) postoperatively, which decreased to 2.75D (range, 0.75-4.25). A marked improvement in both unaided visual acuity and astigmatism was shown after the procedure. Seven consecutive patients with all sutures removed were included. Kersey et al., ( Cornea 2007 26:133-5) studied the change in visual acuity and refraction after cataract surgery using a toric posterior chamber intraocular lens in patients with astigmatism after penetrating keratoplasty. They concluded that implantation of the AcrySof® toric IOL proved to be an effective, safe, and predictable method of managing corneal astigmatism in cataract patients. Three toric models were evaluated in cylinder powers of 1.50 diopters (D) (SN60T3 T3 group, n=16), 2.25 D (SN60T4 T4 group, n=14) and 3.00 D (SN60T5 T5 group, n=23) at the IOL plane.

#ITRACE TORIC LENS ALIGNMENT TRIAL#

2008 34:1483-8) presented clinical data from a single-center prospective clinical trial of the AcrySof® toric (IOL)fifty-three eyes (43 patients) had implantation of an AcrySof® toric IOL. They concluded that favorable efficacy, rotational stability, distance vision spectacle freedom, and safety results support the use of the AcrySof® Toric IOL (Alcon Laboratories, FW, Tx) for patients with cataracts and corneal astigmatism.īauer et al., ( J Cataract Refract Surg.

Holland et al., ( Ophthalmology 2010 117:2104-11) carried out a randomized, multicenter study which included 517 subjects (Toric IOL, n=256 control IOL, n=261). The maximum acceptable axis shift seems to be less than 30°. A negative effect occurred in some eyes in which the lens axis rotated more than 30°. The 3.00D IOLs resulted in better correction than the 2.00D IOLs when the axis shift of the lens was less than 30°.

Best corrected visual acuity three months postoperatively was 20/25 or better in 77% of eyes. The lenses, which had a cylindrical power of 2.00 diopters (D) ( n= 26) or 3.00 D ( n= 21), were implanted through a 5.7mm incision after cataract extraction by phacoemulsification. Shimuzi et al., ( J Cataract Refract Surg.1994 20:523-6) evaluated the efficacy of toric IOLs implanted in the eyes of 47 patients who had preoperative against-the-rule astigmatism. This review of journal abstracts gives an overview of the currently available toric and multifocal toric IOLs along with their results and complications. Now, we have multifocal toric IOLs which provide spectacle independence not only for distance vision but also for near and intermediate vision. They offer patients the opportunity to correct corneal astigmatism at the time of cataract surgery and achieve spectacle independence for distance vision. Toric pseudophakic intraocular lenses (IOLs) are increasingly used in cataract surgery.

#ITRACE TORIC LENS ALIGNMENT HOW TO#

How to cite this URL: Sinha R, Shekhar H, Tinwala S, Rathi A, Titiyal JS. How to cite this article: Sinha R, Shekhar H, Tinwala S, Rathi A, Titiyal JS.

Itrace toric lens alignment