Dovepress 9. Berson DM, Dunn FA, Takao M. Phototransduction by retinal ganglion cells that set the circadian clock. Science. 2002;295:1070–1073. 10. Provencio I, Rodriguez IR, Jiang G, et al. A novel human opsin in the inner retina. J Neurosci. 2000;20:600–605. 11. Berson DM. Strange vision: ganglion cells as circadian photoreceptors. Trends Neurosci. 2003;26:314–320. 12. Turner PL, Mainster MA. Circadian photoreception: ageing and the eye’s important role in systemic health. Br J Ophthalmol. 2008;92: 1439–1444. 13. Miyata A,Yaguchi S. Equilibrium water content and glistenings in acrylic intraocular lenses. J Cataract Refract Surg. 2004;30:1768–1772. 14. Gunenc U, Oner FH, Tongal S, Ferliel M. Effects on visual function of glistenings and folding marks in AcrySof intraocular lenses. J Cataract Refract Surg. 2001;27:1611–1614. 15. Christiansen G, Durcan FJ, Olson RJ, et al. Glistenings in the AcrySof intraocular lens: pilot study. J Cataract Refract Surg. 2001;27: 728–733. 16. Mäntyjärvi M, Laitinen T. Normal values for the Pelli–Robson contrast sensitivity test. J Cataract Refract Surg. 2001;27:261–266. 17. Palomino Bautista C, Carmona González D, Castillo GómezA, Bescos JA. Evolution of visual performance in 250 eyes implanted with the Tecnis ZM900 multifocal IOL. Eur J Ophthalmol. 2009;19(5):762–768. Visual performance with a new multifocal intraocular lens 18. Kaymak H, Fahle M, Ott G, et al. Intraindividual comparison of the effect of training on visual performance with ReSTOR and Tecnis dif- fractive multifocal IOLs. J Refract Surg. 2008;24:287–293. 19. Tan DT, Fong A. Efficacy of neural vision therapy to enhance contrast sensitivity function and visual acuity in low myopia. J Cataract Refract Surg. 2008;34:570–577. 20. Artal P, Manzanera S, Piers P, et al. Visual effect of the combined correction of spherical and longitudinal chromatic aberrations. Opt Express. 2010;18:1637–1648. 21. López-Gil N, Montés-Micó R. New intraocular lens for achromatizing the human eye. J Cataract Refract Surg. 2007;33:1296–1302. 22. Yoon GY, Williams DR. Visual performance after correcting the monochromatic and chromatic aberrations of the eye. J Opt Soc Am A Opt Image Sci Vis. 2002;19:266–275. 23. Manzanera S, Piers P, Wheeler H, Artal P. Visual benefit of the com- bined correction of spherical and chromatic aberrations [abstract]. Ophthalmol Vis Sci. 2007;48:E-Abstract 1513. Clinical Ophthalmology Publish your work in this journal Clinical Ophthalmology is an international, peer-reviewed journal covering all subspecialties within ophthalmology. Key topics include: Optometry; Visual science; Pharmacology and drug therapy in eye diseases; Basic Sciences; Primary and Secondary eye care; Patient Safety and Quality of Care Improvements. This journal is indexed on Submit your manuscript here: http://www.dovepress.com/clinical-ophthalmology-journal Clinical Ophthalmology 2012:6 Dovepress PubMed Central and CAS, and is the official journal of The Society of Clinical Ophthalmology (SCO). The manuscript management system is completely online and includes a very quick and fair peer-review system, which is all easy to use. Visit http://www.dovepress.com/ testimonials.php to read real quotes from published authors. submit your manuscript | www.dovepress.com Dovepress 407