Abstract: The invention generally relates to optical filters that selectively attenuate the transmission of visible light for the purpose of enhancing or transforming the quality of human vision; to improved designs of such optical filters that provide an improved quality of color vision or of color perception; to methods of using such improved optical filters to enhance human vision during outdoor night time viewing conditions; to methods of using such improved optical filters to reduce the stimulation of the intrinsically photosensitive retinal ganglion cells (ipRGCs); to methods of using such improved optical filters to reduce the discomfort of glare; and to methods of using such improved optical filters to mitigate the symptoms of low vision or age-related visual impairments including for methods of treating or slowing the progression of persons with cone dystrophy including for persons with retinitis pigmentosa.

Abstract: A method, system and/or spectacle eyewear device for modifying the color vision of a person while viewing a color image emitted in linearly polarized light by a display device includes a first lens and a second lens, wherein the lenses each include a color-selective partial polarization filter and the polarization axes the filters are orientated non-parallel to each other and are configured so that a person experiences binocular rivalry due to spectral binocular disparity with respect to the polarized light emitted by the display device. In some variations the polarization axes of the filters are oriented in such a way that the intensity of binocular rivalry is maintained for rotations of the polarized light and/or display device by 45 degrees and by 90 degrees. In some variations the lenses appear substantially identical when viewed in non-polarized light. In some variations the person has color blindness or color vision deficiency.

Abstract: The invention generally relates to optical filters that selectively attenuate the transmission of visible light for the purpose of enhancing or transforming the quality of human vision; to improved designs of such optical filters that provide an improved quality of color vision or of color perception; to methods of using such improved optical filters to enhance human vision during outdoor night time viewing conditions; to methods of using such improved optical filters to reduce the stimulation of the intrinsically photosensitive retinal ganglion cells (ipRGCs); to methods of using such improved optical filters to reduce the discomfort of glare; and to methods of using such improved optical filters to mitigate the symptoms of low vision or age-related visual impairments including for methods of treating or slowing the progression of persons with cone dystrophy including for persons with retinitis pigmentosa.

Abstract: The invention generally relates to devices that demonstrate the function of ophthalmic lenses that modify human color perception and to methods and devices that simulate color vision deficiency or color blindness.

Abstract: The invention generally relates to devices that demonstrate the function of ophthalmic lenses that modify human color perception and to methods and devices that simulate color vision deficiency or color blindness.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.

Abstract: A system for hearing assistance devices to assist hearing aid fitting applied to individual differences in hearing impairment. The system is also usable for assisting fitting and use of hearing assistance devices for listeners of music. The method uses a subjective space approach to reduce the dimensionality of the fitting problem and a non-linear regression technology to interpolate among hearing aid parameter settings. This listener-driven method provides not only a technique for preferred aid fitting, but also information on individual differences and the effects of gain compensation on different musical styles.