Aim of the study was to find out whether the implantation of the multifocal lenses, can be recommended categorically, to expect a good spectacle-free vision in cataract patients.

Materials and Methods: consisted of a prospective study in which 50 eyes of cataract patients were implanted with multifocal lenses. Criteria like visual improvement, spectacle-free vision, glare, diplopia and de-centration of the lens were used, to assess the result of this prospective study.

Conclusion: The study undoubtedly concluded that implantation of multifocal can be recommended, to expect post-operatively in cataract patients a spectacle-free 6/6 and N5 vision, with a condition that the lens should be heparin surface modified lens, as in our study more than 90% of the patients achieved unaided 6/6 vision and unaided N5 of near vision.

1. Congdon N, Vingerling JR, Klein BE, et al. Prevalence of cataract and pseudophakia/aphakia among adults in the United States. Arch Ophthalmol. 2004; 122:487–494. [PubMed].
2. Javitt JC, Wang F, West SK. Blindness due to cataract: Epidemiology and prevention. Ann Rev Public Health. 1996; 17:159–177. [PubMed].
3. Agency for Health Care Policy and Research. Cataract in Adults: Management of functional impairment. Rockville, MD: Agency for Health Care Policy and Research; 1993.
4. Anmarkrund N, Bergaust B, Bulie T, Sand AB. Evaluation of a flexible one-piece open-loop anterior chamber lens Symflex 350B 3–4 years after implantation. Acta Ophthalmol. 1993;71:796–800. [PubMed]
5. Pötzsch DK, Lösch-Pötzsch M. Four year follow-up of the Memorylens. J Cataract Refract Surg. 1996;22:1336–1341. [PubMed].
6. Schmack WH, Gerstmeyer K. Long-term results of the foldable CeeOn edge intraocular lens. J Cataract Refract Surg. 2000;26:1172–1175. [PubMed].
7. Milazzo S, Turut P, Artin B, Charlin JF. Long-term follow-up of threepiece, looped, silicone intraocular lenses. J Cataract Refract Surg. 1996;22 (Suppl 2):1259–1262. [PubMed].
8. Linnola RJ, Holst A. Evaluation of a 3-piece silicone intraocular lens with poly(methyl methacrylate) haptics. J Cataract Refract Surg. 1998;24:1509–1514. [PubMed].
9. Simpson MJ. The diffractive multifocal intraocular lens. Eur J Implant Refract Surg. 1989;1:115–121.
10. Javitt JC, Steinert RF. Cataract extraction with multifocal intraocular lens implantation: A multinational clinical trial evaluating clinical, functional, and quality-of-life outcomes. 2000;107:2040–2048. [PubMed].
11. Javitt JC, Wang F, Trentacost DJ, et al. Outcomes of cataract extraction with multifocal intraocular lens implantation: Functional status and quality of life. Ophthalmology. 1997;104:589–599. [PubMed].
12. Rossetti L, Carraro F, Rovati M, et al. Performance of diffractive multifocal intraocular lenses in extracapsular cataract surgery. J Cataract Refract Surg. 1994; 20: 124–128. [PubMed].
13. Vaquero M, Encinas JL, Jimenez F. Visual function with monofocal versus multifocal IOLs. J Cataract Refract Surg. 1996;22: 1222–1225. [PubMed].
14. Gimbel HV, Sanders DR, Raanan MG. Visual and refractive results of multifocal intraocular lenses. Ophthalmology. 1991; 98:881–888. [PubMed].
15. Auffarth GU, Dick HB. Multifocal intraocular lenses. A review. Ophthalmo-loge. 2001;98:127–137. [PubMed].
16. Khoshnood B, Mesbah M, Jeanbat V, et al. Transforming scales of measurement of visual acuity at the group level. Ophthalmic and Physiological Optics. 2010;30:816–823. [PubMed].
17. Mosteller F, Colditz GA. Understanding research synthesis (metaanalysis) Ann Rev Public Health. 1996;17:1–23. [PubMed]
18. DerSimonian R, Laird N. Meta-analysis in clinical trials. Control Clin Trials. 1986;7: 177–188.[PubMed].
19. Bi H, Cui Y, Ma X, et al. Early clinical evaluation of Acrys of ReSTOR Multifocal lens for treatment of cataract. Ophthalmologica. 2008;222:11–16. [PubMed].
20. Chiam PJ, Cahn JH, Haider SI, et al. Functional vision with bilateral Rezoom and ReSTOR intraocular lenses 6 months after cataract surgery. J Cataract Refract Surg. 2007;33:2057–2061. [PubMed].
21. Toto L, Falconio G, Vecchiarino L, et al. Visual performance and biocompatibility of 2 multifocal diffractive IOLs. Six-month comparative study. J Cataract Refract Surg. 2007;33:1419–1425. [PubMed].
22. Souza CE, Muccioli C, Soriano ES, et al. Visual performance of Acrysof ReSTOR apodized diffractive IOL: A prospective comparative trial. Am J Ophthalmol. 2006; 141:827–832. [PubMed].
23. Vingolo EM, Grenga P, Iacobelli L, Grenga R. Visual acuity and contrast sensitivity: Acrysof ReSTOR apodized diffractive versus Acrysof SA60AT monofocal intraocular lenses. J Cataract Refract Surg. 2007;33:1244–1247. [PubMed].
24. Alfonso JF, Fernandez-Vega L, Baamonde B, Montés-Mico R. Prospective visual evaluation of apodized diffractive intraocular lenses. J Cataract Refract Surg. 2007;33:1235–1243. [PubMed].
25. Chiam PJT, Chan JH, Aggarwal RK, Kasaby S. ReSTOR intraocular lens implantation in cataract surgery: Quality of vision. J Cataract Refract Surg. 2006;32: 1459–1463. [PubMed].

Dr K.M Suresh, MBBS, MS (OPH)

Medical Director Vidya Eye Hospital, Bangalore 560040, India