Abstract: Methods and systems for determining a refractive correction for eyeglasses involve obtaining an objective measurement of a wave aberration. The objective measurement includes an objective spherical power (SPH_o), an objective cylinder power (CYL_o), an objective cylinder axis (AXIS_o), and other residual aberrations; and uses objective vision optimization to achieve a best image quality for the eye from the residual aberrations. A prescription cylinder power (CYL_p), is determined using a software module, where an absolute value of CYL_p is less than an absolute value of CYL_o and achieves an acuity of at least 20/20. A prescription spherical power (SPH_s) is determined subjectively by dialing into a phoropter module a cylinder correction according to the prescription cylinder power (CYL_p) from the software module and the objective cylinder axis (AXIS_o) according to the objective aberrometer module. A prescription for an ophthalmic lens of the eyeglasses is generated that includes SPH_s, CYL_p and AXIS_o.

Abstract: Methods and systems are disclosed for optimizing refractive prescriptions of human eyes. First, objective refraction devices such as aberrometers and auto-refractors will not only provide an objective estimate of sphero-cylinder correction, but also a quality metrics for at least one of a) measuring the confidence level in the objectively determined cylinder power and cylinder axis in addition to the objective sphero-cylinder correction, b) assessing/displaying quality of vision corrections for a plurality of cylinder power. Second, the quality metrics will be used to elect one of a plurality of modes of subjective refraction with a phoropter: 1) one mode for the subjective determination of spherical power only, 2) another mode for subjective determination of both sphere power and cylinder power.

Abstract: A refraction system for remote refraction or self-refraction of human eyes. The system uses a reliable spherocylindrical module that allows the refraction system to obtain an initial spherocylindrical correction of the eye, and an SPH adjustment module that allows the user to adjust spherical power of the phoropter module on top of the initial spherocylindrical correction of the eye so that an updated spherical power (SPH) is subjectively determined. The reliable spherocylindrical module can be I) a device for obtaining a prescription of a pair of old eyeglasses, or II) a wavefront aberrometer that can offer, in addition to the objective sphero-cylinder correction, a quality metrics for at least one of a) measuring the confidence level in the objectively determined cylinder power and cylinder axis, b) assessing/displaying quality of vision corrections for a plurality of cylinder power.

Abstract: Methods and systems am disclosed in which an optical diagnosis of an eye's optical image quality is performed using a simulated retinal image. An objective measurement of a total wave aberration is obtained, and residual aberrations are computed by subtracting a sphero-cylindrical correction from the total wave aberration. The simulated retinal image is computed by computing a point-spread function from the residual aberrations and convolving the computed point-spread function with an acuity chart. The optical diagnosis includes at least one of: determining excess aberrations, ranking optics of the eye into optical grades, selecting the eye for high-definition eyeglasses, identifying amblyopia or macular diseases, or choosing an objective refraction for vision correction.

Abstract: Methods, systems, and devices are provided for wavefront vision correction beyond a spherocylindrical correction. Wavefront customization involves: 1) measuring wave aberration of an individual eye, 2) determining a spherocylindrical correction from the measured wavefront and a deficiency factor for the determined spherocylindrical correction, 3) inducing spherical aberration into eye's central pupil to mitigate residual aberrations beyond the spherocylindrical correction. Wavefront-optimized vision corrections can be applied to contact lenses, implantable contact lenses, intraocular lenses (IDLs), phakic IDLs, and laser vision corrections.

Abstract: Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.

Abstract: Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided, or an optical device is implanted in the eye, or corneal tissue is removed to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.

Abstract: Methods and devices are provided for wavefront treatments of an eye's astigmatism, coma, and presbyopia. Wavefront-engineered monofocal lenses, inducing spherical aberration into the eye's central pupil, provide vision correction beyond 20/20 acuity and improve quality of vision by eliminating image distortion caused by uncorrected astigmatism and coma in the eye. New presbyopia-correcting lenses, including Extended Depth of Focus (EDOF) bifocal, EDOF trifocal, and quasi-accommodating lenses, are disclosed for presbyopia corrections between +0.75 D to +3.25 D, and they are achieved by inducing a positive spherical aberration and a positive focus offset less than 3 Diopters in a central section plus a negative spherical aberration in an annular section within a central part of a monofocal lens.

Abstract: Methods and systems am disclosed in which an optical diagnosis of an eye's optical image quality is performed using a simulated retinal image. An objective measurement of a total wave aberration is obtained, and residual aberrations are computed by subtracting a sphero-cylindrical correction from the total wave aberration. The simulated retinal image is computed by computing a point-spread function from the residual aberrations and convolving the computed point-spread function with an acuity chart. The optical diagnosis includes at least one of: determining excess aberrations, ranking optics of the eye into optical grades, selecting the eye for high-definition eyeglasses, identifying amblyopia or macular diseases, or choosing an objective refraction for vision correction.

Abstract: Methods and systems for determining a refractive correction for eyeglasses involve obtaining an objective measurement of a wave aberration. The objective measurement includes an objective spherical power (SPH_o), an objective cylinder power (CYL_o), an objective cylinder axis (AXIS_o), and other residual aberrations; and uses objective vision optimization to achieve a best image quality for the eye from the residual aberrations. A prescription cylinder power (CYL_p), is determined using a software module, where an absolute value of CYL_p is less than an absolute value of CYL_o and achieves an acuity of at least 20/20. A prescription spherical power (SPH_s) is determined subjectively by dialing into a phoropter module a cylinder correction according to the prescription cylinder power (CYL_p) from the software module and the objective cylinder axis (AXIS_o) according to the objective aberrometer module. A prescription for an ophthalmic lens of the eyeglasses is generated that includes SPH_s, CYL_p and AXIS_o.

Abstract: Methods and systems for producing a refractive prescription for a consumer away from an optical office are disclosed. At a first time point, a first prescription for a first pair of corrective lenses is generated according to measured refractive errors, and a historical visual acuity profile is measured using the first prescription and a varying spherical power. At a second time point, a second visual acuity is measured using the first prescription. A new spherical power is computed using the historical visual acuity profile and the second visual acuity. A second prescription for a second pair of corrective lenses is generated based on the first prescription and the new spherical power. In some embodiments, the second visual acuity may be self-administered by the consumer away from an optical office.

Abstract: Methods, devices, and systems are disclosed for determining refractive corrections of human eyes to reduce and eliminate image distortion associated with eyeglasses. In some embodiments, an objective refraction module is configured to measure refractive errors of an eye objectively, without subjective feedback from a tested subject. A computation module is configured to generate a plurality of objective prescriptions. A phoropter module is configured to perform a subjective refraction for determining a plurality of subjective spherical powers based on the plurality of objective prescriptions.

Abstract: Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided, or an optical device is implanted in the eye, or corneal tissue is removed to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.

Abstract: Methods, devices, and systems are disclosed for determining refractive corrections of human eyes to reduce and eliminate image distortion associated with eyeglasses. In some embodiments, an objective refraction module is configured to measure refractive errors of an eye objectively, without subjective feedback from a tested subject. A computation module is configured to generate a plurality of objective prescriptions. A phoropter module is configured to perform a subjective refraction for determining a plurality of subjective spherical powers based on the plurality of objective prescriptions.

Abstract: Methods and systems for producing a refractive prescription for a consumer away from an optical office are disclosed. At a first time point, a first prescription for a first pair of corrective lenses is generated according to measured refractive errors, and a historical visual acuity profile is measured using the first prescription and a varying spherical power. At a second time point, a second visual acuity is measured using the first prescription. A new spherical power is computed using the historical visual acuity profile and the second visual acuity. A second prescription for a second pair of corrective lenses is generated based on the first prescription and the new spherical power. In some embodiments, the second visual acuity may be self-administered by the consumer away from an optical office.

Abstract: Methods, devices, and systems are disclosed for determining refractive corrections of human eyes to reduce and eliminate image distortion associated with eyeglasses. In some embodiments, an objective refraction module is configured to measure refractive errors of an eye objectively, without subjective feedback from a tested subject. A computation module is configured to generate a plurality of objective prescriptions. A phoropter module is configured to perform a subjective refraction for determining a plurality of subjective spherical powers based on the plurality of objective prescriptions.

Abstract: Optical correction methods, devices, and systems reduce optical aberrations or inhibit refractive surgery induced aberrations. Error source control and adjustment or optimization of ablation profiles or other optical data address high order aberrations. A simulation approach identifies and characterizes system factors that can contribute to, or that can be adjusted to inhibit, optical aberrations. Modeling effects of system components facilitates adjustment of the system parameters.

Abstract: Methods and systems include using a digital camera module for capturing a plurality of digital images of a tested subject at a plurality of perspective views. The tested subject is not required to move their head position or viewing direction during the capturing of images. A motion control module I) rotates the camera module with its optical axis pointing at a rotation center to correct any orientation error in capturing the perspective views, and II) positions the camera module to adjust the rotation center for accommodating different head positions of the tested subject. A computer module processes and stores the plurality of digital images to fit an eyeglass frame to the tested subject or to acquire data for fitting prescription lenses into the eyeglass frame. The computer module can provide an augmented reality of different styles of eyeglasses, and obtain 3D measurements for fitting eyeglass frames.

Abstract: Methods and systems for making measurements for eyeglass frames worn by human subjects include capturing, using a first digital camera module, a plurality of images of a head of a tested subject wearing an eyeglass frame. The plurality of images comprises a front view image and a side view image of a face of the tested subject. A second camera module is used to monitor a top view of the head. A computer module is used to process the front view image and the side view image. The front view image is used to determine a pupillary distance and a segment height, and the side view image is used to determine a vertex distance and a pantoscopic tilt.

Abstract: Methods and systems for making measurements for eyeglass frames worn by human subjects include capturing, using a first digital camera module, a plurality of images of a head of a tested subject wearing an eyeglass frame. The plurality of images comprises a front view image and a side view image of a face of the tested subject. A second camera module is used to monitor a top view of the head. A computer module is used to process the front view image and the side view image. The front view image is used to determine a pupillary distance and a segment height, and the side view image is used to determine a vertex distance and a pantoscopic tilt.