Optical devices having partial or incomplete optic and associated methods

1. A method for enhancing vision, the method comprising:

adding a partial or incomplete optic as an add-on to an existing optical system that has a line of sight, the partial or incomplete optic having a fan-shaped optically active area configured in relation to the existing optical system such that the line of sight passes through the fan-shaped optically active area and the partial or incomplete optic controls or changes foci of light incident upon or provided to the fan-shaped optically active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic,

wherein the existing optical system includes an intraocular lens (IOL) implanted in an eye of a patient, and the step of adding a partial or incomplete optic is performed subsequently to the intraocular lens being implanted in the eye of the patient, and

wherein the partial or incomplete optic is devoid of haptics.

2. The method for enhancing vision of claim 1 , wherein the step of adding a partial or incomplete optic includes positioning the partial or incomplete optic in relation to the existing optical system such that the active area controls or changes foci of light incident upon or provided to the existing optical system at the active area.

3. The method for enhancing vision of claim 1 , wherein

the step of adding a partial or incomplete optic includes positioning the partial or incomplete optic in the eye at a location, the location being:

in front of an iris/within an anterior chamber,

at or near an iris,

behind an iris/in sulcus, or

inside a capsular bag.

4. The method for enhancing vision of claim 1 , wherein

the step of adding a partial or incomplete optic includes utilizing one or more portions of the eye to secure the partial or incomplete optic within the eye, the portion(s) of the eye including one or more of:

an iris,

an anterior chamber,

a sulcus, and

a capsular bag.

5. The method for enhancing vision of claim 1 , wherein

the active area includes edge or side portions that block or diffuse light.

6. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light include a surface treatment or finish at the edge or side portions from outside-in without affecting optical areas.

7. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light include a light absorbing surface layer.

8. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light have a gloss unit (GU) value that is less than 30.

9. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light have a surface roughness with peak-valley height values of 7-15 microns.

10. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light are produced utilizing one or more of:

a lithography technique,

an etching technique, and

an UV/Ozone surface technique,

to apply and/or modify one or more surface structures at the edge or side portions.

11. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light include nano-structures that have nano-tips or cones.

12. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light include nano-structures that are cone-shaped or approximately cone-shaped, the nano-structures being 100-300 nm in base diameter and 1000-16000 nm in height.

13. The method for enhancing vision of claim 5 , wherein the edge or side portions that block or diffuse light include nano-structures at the edge or side portions, the nano-structures including: nano-tips, nano-arrays, aperiodic or other arrays of nano-structures, antireflection structures, biomimetic structures, or a combination or combinations thereof.