FIELD: physics, optics.
SUBSTANCE: set of invention relates to ophthalmology and covers aspherical diffraction lenses. Multifocal intraocular lenses (MIL) comprises optics with front and rear surfaces. Note here that at least one of said surfaces comprises aspherical basic profile whereon plurality of diffraction zones is located to create far focus and near focus.
EFFECT: higher contrast in lens far focus for, in fact, MIL-identical lens that features spherical basic profile.
25 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ASPHERIC INTRAOCULAR LENS FOR HIGHER CONTRAST | 2005 |
|
RU2377963C2 |
| APODISED DIFFRACTION INTRAOCULAR HAVING BROKEN DIFFRACTION REGION | 2007 |
|
RU2431167C2 |
| DIFRACTION MULTIFOCAL LENS WITH MODIFIED CENTRAL SPACE AREA | 2009 |
|
RU2526426C2 |
| HIGHEST-ORDER ABERRATION CORRECTION IN INTRAOCULAR LENSES | 2007 |
|
RU2372062C2 |
| METHOD OF MEASURING DIFFRACTION LENSES | 2008 |
|
RU2468348C2 |
| PSEUDO-ACCOMMODATIVE INTRAOCULAR LENSES WITH MULTIPLE DIFFRACTION STRUCTURES | 2007 |
|
RU2418311C2 |
| INTEROCULAR LENS WITH VARIABLE CORRECTION OF CHROMATIC ABERRATION | 2010 |
|
RU2538934C2 |
| PSEUDOACCOMODATIVE INTRAOCULAR LENSES WITH VARIABLE DIFFRACTION REGIONS | 2007 |
|
RU2416812C2 |
| TRIFOCAL INTRAOCULAR LENS WITH EXTENDED RANGE OF VISION AND CORRECTION OF LONGITUDINAL CHROMATIC ABERRATION | 2016 |
|
RU2745666C2 |
| INTRAOCULAR DIFFRACTION LENS | 2000 |
|
RU2186417C2 |
