Electronic liquid crystal contact lenses for the correction of presbyopia.

Presbyopia, the age-related reduction in near vision acuity, is one of the leading issues facing the contact lens industry due to an increasingly ageing population and limitations associated with existing designs. A plastic-based liquid crystal contact lens is described which is designed to allow switchable vision correction. The device is characterized by low operating voltages (<5V(rms)) and has curvatures suitable for placement upon the cornea. Imaging and Point Spread Function analysis confirm that the lens provides an increase in optical power of + 2.00 ± 0.25 D when activated, ideal for presbyopia correction.

[1]  O. Lavrentovich.  Defects and Textures of Liquid Crystals , 2014 .

[2]  P. Morgan,et al.  Optimization of refractive liquid crystal lenses using an efficient multigrid simulation. , 2012, Optics express.

[3]  H. De Smet,et al.  Design and Wrinkling Behavior of a Contact Lens With an Integrated Liquid Crystal Light Modulator , 2012, Journal of Display Technology.

[4]  Alejandro Cerviño,et al.  Visual performance with simultaneous vision multifocal contact lenses , 2012, Clinical & experimental optometry.

[5]  R. Weinreb,et al.  Continuous 24 hour intraocular pressure monitoring for glaucoma with a contact lens sensor - time for a paradigm change , 2012 .

[6]  Yu-Te Liao,et al.  A single-pixel wireless contact lens display , 2011, Journal of Micromechanics and Microengineering.

[7]  P. Morgan,et al.  Contact lens correction of presbyopia. , 2009, Contact lens & anterior eye : the journal of the British Contact Lens Association.

[8]  Shin-Tson Wu,et al.  Liquid crystal lens with large focal length tunability and low operating voltage. , 2007, Optics express.

[9]  Guoqiang Li,et al.  Switchable electro-optic diffractive lens with high efficiency for ophthalmic applications. , 2006, Proceedings of the National Academy of Sciences of the United States of America.

[10]  Bin Wang,et al.  Polarization-independent liquid crystal lens with four liquid crystal layers , 2006, IEEE Photonics Technology Letters.

[11]  Susumu Sato,et al.  Optical Properties of Liquid Crystal Lens of Any Size , 2002 .

[12]  G. Love,et al.  Control optimization of spherical modal liquid crystal lenses. , 1999, Optics express.

[13]  W N Charman,et al.  Can diffractive liquid crystal lenses aid presbyopes? , 1993, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[14]  Susumu Sato,et al.  Variable-Focus Liquid-Crystal Fresnel Lens , 1985 .

[15]  Susumu Sato.  Liquid-Crystal Lens-Cells with Variable Focal Length , 1979 .