FIELD: medicine.
SUBSTANCE: ophthalmic device comprises a contact lens having curved back and front surfaces, an optic zone and a peripheral zone. At least one structural element on the curved back surface in the peripheral zone is based on a system of iterated functions with a random component. A method for making the ophthalmic device involves making a contact lens, drawing at least one structural element and including it into the curved back surface in the peripheral zone of the contact lens. The structural element is based on a fractal geometry; it is produced with using the system of iterated functions, wherein each function in the system has an effect on the set and is used as a compressed image.
EFFECT: improving tear exchange or tear film refreshing between the back portion of the contact lens and the cornea.
8 cl, 3 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CONTACT LENS WITH IMPROVED SEATING CHARACTERISTICS | 2013 |
|
RU2567594C2 |
| INCREASED STIFFNESS CENTRE OPTICAL AREA IN SOFT CONTACT LENSES FOR ASTIGMATISM CORRECTION | 2013 |
|
RU2540932C2 |
| CONSTRUCTION OF MULTI-AXIAL LENSES FOR ASTIGMATISM | 2013 |
|
RU2559176C2 |
| CONTACT LENSES WITH IMPROVED OXYGEN TRANSMISSION | 2014 |
|
RU2581088C1 |
| DYNAMIC STABILIZATION ZONES FOR CONTACT LENSES | 2013 |
|
RU2612541C2 |
| METHOD FOR MAKING STABILISED CONTACT LENSES | 2010 |
|
RU2528281C2 |
| CONTACT LENS STABILISATION | 2010 |
|
RU2533324C2 |
| STABILISED CONTACT LENSES | 2010 |
|
RU2556276C2 |
| HYDROGEL LENS INCLUDING A REMOVABLE MEDIA INSERT | 2014 |
|
RU2672693C2 |
| FLEXIBLE DYNAMIC MOVING ZONES FOR CONTACT LENSES | 2013 |
|
RU2575054C2 |
