FIELD: medicine.
SUBSTANCE: group of inventions relates to field of medicine. Versions of intraocular lens contain: optics, which has front surface and back surface, with optics having central refraction area to provide one refraction focusing force, and diffraction area, located on one of surfaces in such a way as to provide diffraction short-focus force and diffraction long-focus force. IOL has such sizes, that at first size of pupil, which is larger than 2.0 mm, IOL represents monofocal lens, which has focusing force corresponding to refraction focusing force, provided by central refraction area. As pupil size increases, IOL represents multifocal intraocular lens with diffraction area, which focuses changeable quantity of light energy into diffraction short-focus force and diffraction long-focus force.
EFFECT: application of claimed group of inventions makes it possible to extend arsenal of technical means, namely multifocal intraocular lens.
30 cl, 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIFRACTION MULTIFOCAL LENS WITH MODIFIED CENTRAL SPACE AREA | 2009 |
|
RU2526426C2 |
| DIFFRACTION STRUCTURE WITH PHASE SHIFT OF CENTRE AND FAR ZONE FOR OCULAR IMPLANT | 2010 |
|
RU2552699C2 |
| OCULAR MULTIFOCAL DIFFRACTION LENS | 2018 |
|
RU2779523C2 |
| OPHTHALMIC MULTIFOCAL LENS AND A METHOD OF ITS MANUFACTURING | 2019 |
|
RU2804912C1 |
| TRIFOCAL INTRAOCULAR LENS WITH EXTENDED RANGE OF VISION AND CORRECTION OF LONGITUDINAL CHROMATIC ABERRATION | 2016 |
|
RU2745666C2 |
| MULTI-FOCAL INTRAOCULAR LENS AND METHOD OF MANUFACTURE OF THAT LENS | 2005 |
|
RU2303961C1 |
| INTEROCULAR LENS WITH VARIABLE CORRECTION OF CHROMATIC ABERRATION | 2010 |
|
RU2538934C2 |
| MULTIFOCAL INTRAOCOULAR LENS WITH INCREASED DEPTH OF FIELD | 2015 |
|
RU2673953C2 |
| APODIZED HYBRID DIFFRACTIVE-REFRACTIVE IOL FOR PSEUDOACCOMMODATION | 2013 |
|
RU2620915C2 |
| METHOD FOR PREOPERATIVE CALCULATION AND MODIFICATION OF INTRAOCULAR LENS BY LASER ABLATION | 2018 |
|
RU2688998C1 |
