Efficacy of 4-Haptic Bitoric Intraocular Lens Implantation in Asian Patients with Cataract and Astigmatism

다국어 초록 (Multilingual Abstract)

Purpose: To determine the efficacy of 4-haptic bitoric intraocular lens (IOL) implantation in Asian patients withcataract and astigmatism.
Methods: A total of 19 eyes with ≤25.0 mm axial length and ≥0.75 diopters (D) corneal astigmatism wereincluded in this prospective non-comparative study. All subjects underwent phacoemulsification with implantationof an AT Torbi 709M IOL. Visual and refractive outcomes as well as toric IOL axis were evaluatedduring a 3-month follow-up. Errors in predicted residual spherical equivalent were calculated by subtractingpredicted residual spherical equivalent from postoperative refraction.
Results: Uncorrected and corrected distance visual acuity improved significantly 3 months after surgery, from0.43 to 0.05 and from 0.24 to -0.05, respectively. Mean refractive cylinders also decreased significantly, from-1.91 preoperatively to -0.54 D 3 months after surgery. Mean J0 and J45 decreased 3 months postoperatively,from 0.26 to 0.03 D and from 0.24 to -0.06 D, respectively. After 3 months, mean absolute IOL rotationwas 1.81º. Errors in predicted residual spherical equivalent showed a hyperopic shift of 0.35 D.
Conclusions: Implantation of 4-haptic bitoric IOL proved to be effective for correcting astigmatism in Asianeyes during cataract surgery.

참고문헌 (Reference)

1 Kessel L, "Toric intraocular lenses in the correction of astigmatism during cataract surgery : a systematic review and meta-analysis" 123 : 275-286, 2016

2 Kim JH, "The analysis of predicted capsular bag diameter using modified model of capsule measuring ring in Asians" 36 : 238-244, 2008

3 Buckhurst PJ, "Surgical correction of astigmatism during cataract surgery" 93 : 409-418, 2010

4 Thibos LN, "Power vector analysis of the optical outcome of refractive surgery" 27 : 80-85, 2001

5 Patel CK, "Postoperative intraocular lens rotation : a randomized comparison of plate and loop haptic implants" 106 : 2190-2195, 1999

6 Jampaulo M, "Long-term Staar toric intraocular lens rotational stability" 146 : 550-553, 2008

7 Ouchi M, "High-cylinder toric intraocular lens implantation versus combined surgery of low-cylinder intraocular lens implantation and limbal relaxing incision for high-astigmatism eyes" 8 : 661-667, 2014

8 Zhu X, "Factors influencing 1-year rotational stability of AcrySof Toric intraocular lenses" 100 : 263-268, 2016

9 Kim MJ, "Evaluation of optical performance of 4 aspheric toric intraocular lenses using an optical bench system : Influence of pupil size, decentration, and rotation" 41 : 2274-2282, 2015

10 Pan CW, "Ethnic variation in central corneal refractive power and steep cornea in Asians" 21 : 99-105, 2014

11 Bascaran L, "Efficacy and stability of AT TORBI 709 M toric IOL" 29 : 194-199, 2013

12 Li Y, "Effect of hydrophobic acrylic versus hydrophilic acrylic intraocular lens on posterior capsule opacification : meta-analysis" 8 : e77864-, 2013

13 Chang DF, "Early rotational stability of the longer Staar toric intraocular lens : fifty consecutive cases" 29 : 935-940, 2003

14 Yoon JJ, "Demographics and ocular biometric characteristics of patients undergoing cataract surgery in Auckland, New Zealand" 44 : 106-113, 2016

15 Mamalis N, "Comparison of two plate-haptic intraocular lenses in a rabbit model" 22 (22): 1291-1295, 1996

16 Mencucci R, "Clinical outcomes and rotational stability of a 4-haptic toric intraocular lens in myopic eyes" 40 : 1479-1487, 2014

17 Kretz FT, "Clinical outcomes and capsular bag stability of a four-point haptic bitoric intraocular lens" 31 : 431-436, 2015

18 Sheppard AL, "Clinical outcomes after implantation of a new hydrophobic acrylic toric IOL during routine cataract surgery" 39 : 41-47, 2013

19 Tehrani M, "Capsule measuring ring to predict capsular bag diameter and follow its course after foldable intraocular lens implantation" 29 : 2127-2134, 2003

20 Hoffer KJ, "Biometry of 7, 500 cataractous eyes" 90 : 360-368, 1980

21 Toto L, "Astigmatism correction with toric IOL : analysis of visual performance, position, and wavefront error" 29 : 476-483, 2013

22 Novis C, "Astigmatism and toric intraocular lenses" 11 : 47-50, 2000