Abstract: Methods and apparatus for producing images of the retina or fundus with improved quality and visualization of its features. This is accomplished by adjustment of specific pupil size, pupil position, detector pinhole size and wavelength parameters of the instrument to give improved image quality as described by a chosen image quality metric. Methods are less complex than adaptive optics and give an improved image in a region of interest and potentially over a larger field of view. Thus, it will be useful in instruments designed for the screening of retinal disease(s). The methodology is applicable to an individual's eye, on the basis of either the group that said individual falls into or measurements of the quality of their eye's optics. As described herein, the settings (including optimum pupil size, pupil position, detector pinhole size and/or wavelength for imaging) can be chosen to give improved the retinal image quality.

Abstract: Presbyopia-correcting multifocal contact lens systems having hyperopic/myopic refractive error correction dependent designs. The multifocal contact lenses are part of a multifocal contact lens system (“lens system”) that includes a plurality of myopic-correcting and hyperopic-correcting lenses that each have an add optical zone for presbyopia correction and that can be selected and fitted to a patient wearer based on their refractive error. To improve far-distance vision of hyperopes, the spherical aberration (SPHA) profile, the add optical zone diameter, and/or the add power of the hyperopic-correcting lenses in the lens system are optimized based on hyperope patient characteristics, which may be different than myope patient characteristics used to optimize the myopic-correcting lenses in the lens system. Such design optimizations may also be refractive error dependent for even further enhanced far-distance vision.

Abstract: Methods and apparatus for producing images of the retina or fundus with improved quality and visualization of its features. This is accomplished by adjustment of specific pupil size, pupil position, detector pinhole size and wavelength parameters of the instrument to give improved image quality as described by a chosen image quality metric. Methods are less complex than adaptive optics and give an improved image in a region of interest and potentially over a larger field of view. Thus, it will be useful in instruments designed for the screening of retinal disease(s). The methodology is applicable to an individual's eye, on the basis of either the group that said individual falls into or measurements of the quality of their eye's optics. As described herein, the settings (including optimum pupil size, pupil position, detector pinhole size and/or wavelength for imaging) can be chosen to give improved the retinal image quality.