Systems and methods for altering visual acuity
AssigneeBoard of Regents, The University of Texas System
InventorsAshley J. Welch, Rebecca L. Vincelette, Henry Grady Rylander, III, Thomas E. Milner
Life of this patent
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Abstract
Provided are methods, systems, and apparatus for altering a modulation transfer function of an imaging system. The described methods, systems and apparatus can be used to temporarily alter visual acuity of a subject.
Claims41
A system operable to effect a temporary change in a modulation transfer function (MTF) of a target imaging system, comprising:
- a light source operable to produce light for transient propagation onto at least a portion of the target imaging system;
- a power source in operative communication with the light source and configured to effect the production of light from the light source;
- and
- a transmission unit in operative communication with the light source and configured to propagate the produced light onto at least a portion of the target imaging system, wherein the propagated light is configured for absorbance by the portion of the target imaging system;
- the absorbance causing an increase in temperature and a change in a refractive index profile of at least the portion of the imaging system, the change in refractive index profile producing a temporary change in the MTF of the imaging system.
A system to temporarily alter visual acuity of a subject, the system comprising:
- a first light source configured to produce infrared light in an infrared wavelength spectrum for transient propagation into an eye of the subject;
- a second light source configured to produce visible light in a visible wavelength spectrum for transient propagation into the eye of the subject;
- and
- a transmission unit configured to propagate the infrared light and the visible light into the eye,
- wherein the light propagated into the eye temporarily alters visual acuity of the subject.
A method for altering visual acuity of a subject comprising:
- propagating visible light in a visible wavelength spectrum into the eye, the visible light generating glare at a glare angle, wherein an area of the retina on which the visible light is incident is related to the glare angle;
- and
- modifying the propagated visible light to increase the glare angle, an area of the retina on which the modified visible light is incident being greater than the area of the retina on which the propagated visible light is incident, wherein the modified visible light alters visual acuity of the subject.
A method for temporarily altering the visual acuity of a subject, comprising:
- projecting infrared wavelength light into an eye of the subject;
- projecting visible wavelength light into the eye of the subject, wherein the projected infrared and projected visible wavelength light are co-aligned, and wherein the infrared wavelength light and visible wavelength light temporarily alter visual acuity of the subject.
Dependencies are inferred from the claim text.