The invention pertains to devices and methods that allow a subject having a diseased retina to see a more complete image of the subjects field-of-view. The invention provides a device comprising one or more windows comprising a plurality of optical components that redirect the light transmitting through the regions of the windows corresponding to the non-functional areas of the retina onto the functional areas of the retina in a manner such that the subject perceives a more complete field-of-view through the functional areas of the retina. The invention also provides a device comprising one or more cameras, a microprocessor, and one or more display screens, wherein the microprocessor comprises an algorithm programmed to remove portions of the image corresponding to non-functional areas of the subjects retina and compressing the portions so removed into the areas of the image corresponding to the functional areas of the subjects retina.