Intraocular toric lens rotational stability improvement

Written by Fedyashev G.A.

  UDK: 617.741–004.1/.753.3–089.243 | Pages: 26–28 | Full text PDF | Open PDF 


Background. PCEM-based intraocular toric lens (IOL) stability improvement was developed and invented in clinical practice: license 2535612, registered in State Registry of Inventions of RF on October 15, 2014.
Methods. 86 patients were operated (97 eyes) with corneal astigmatism aged 35–74. In 42 cases IOL were implanted in accordance with the offered invention.
Results. During 12 months average rotation angle of IOL implanted according to traditional technology was 2.2±2.0°. In patients operated by offered methods average rotation angle occurred to be much less – 0.8±1.2°.
Conclusions. The offered method of toric IOL fixation ensures their stability even with prominent contraction of capsular lens and provides prevention decentered lenses and anterior lens capsule phimosis preserving visual function for a long time.

Links to authors:

G.A. Fedyashev
Primorsky center of eye microsurgery (100e Borisenko St.Vladivostok 690088 Russian Federation), Pacific State Medical University (2 Ostryakova Ave. Vladivostok 690950 Russian Federation)

1. Eroshevskaya E.B. An intraocular correction of aphakia in patients with primary open-angle glaucoma: thesis, MD. Samara, 1997. 240 p.
2. Penzeva K.V., Takhtaev Yu.V. Analysis of retinal thickness after the primary posterior capsulorhexis // Cataract and Refractive Surgery. 2012. Vol. 12, No. 2. P. 17–20.
3. Fedyashev G.A. The process for increasing the rotational stability of toric intraocular lenses: patent RU 2535612 the Russian federation, MPK A61F 9/00 (No. 2013125066/14, appl. 29.05.2013, issued 12.20.2014. Bul. No. 35).
4. Fedyashev G.A., Egorov V.V., Egorova A.V. Correction of astigmatism in cataract surgery using the implantation of toric intraocular lenses AcrySof toric // Healthcare of Far East. 2010. Vol. 46, No. 4. P. 46.
5. Chang D. Comparative rotational stability of single-piece openloop acrylic and plate-haptic silicone toric intraocular lenses // Journal of Cataract and Refraction Surgery. 2008. Vol. 34. P. 1842–1847.
6. Horn J.D. Status of toric intraocular lenses // Current Opinion in Ophthalmology. 2007. Vol. 18. P. 58–61.
7. Kim M.H, Chung T.Y, Chung E.S. Long-term efficacy and rotational stability of AcrySof toric intraocular lens implantation in cataract surgery // Korean J. Ophthalmol. 2010. Vol. 24. P. 207–212.
8. Rozema J.J., Gobin L., Verbruggen K., Tassignon M.J. Changes in rotation after implantation of a bag-in-the-lens intraocular lens // Journal of Cataract and Refraction Surgery. 2009. Vol. 35, No. 8. P. 1385–1388.
9. Sheppard A.L., Wolffsohn J.S., Bhatt U. [et al.] Clinical outcomes after implantation of a new hydrophobic acrylic toric IOL during routine cataract surgery // J. Cataract. Refract. Surg. 2013. Vol. 39. P. 41–47.
10. Tseng S.S., Ma J.K. Calculating the optimal rotation of a misaligned toric intraocular lens // J. Cataract. Refract. Surg. 2008. Vol. 34. P. 1767–1772.
11. Vicković I.P., Loncar V.L., Mandić Z. [et al.] Toric intraocular lens implantation for astigmatism correction in cataract surgery // Acta Clin Croat. 2012. Vol. 51. P. 293–297.
12. Visser N., Gast S.T., Bauer N.J. [et al.] Cataract surgery with toric intraocular lens implantation in keratoconus: a case report // Cornea. 2011. Vol. 30. P. 720–723.
13. Visser N., Bauer N.J., Nuijts R.M. Toric intraocular lenses: historical overview, patient selection, IOL calculation, surgical techniques, clinical outcomes, and complications // Journal of Cataract and Refraction Surgery. 2013. Vol. 39. P. 624–637.
14. Weinand F., Jung A., Stein A. [et al.] Rotation stability of a singlepiece hydrophobic acrylic intraocular lens: new method for highprecision rotation control // Journal of Cataract and Refraction Surgery. 2007. Vol. 33, No. 5. P. 800–803.


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