SBIR-STTR Award

While there are new optical systems for persons with visual impairments appearing on the market, these new advances concentrate on the optical and functional properties of the system with minor concern given to their appearance. The most common reason for rejection or underutilization of optical aids is due to their appearance. In Phase I design of cosmetically acceptable telescopic aids will be pursued. The designs will lead to the development of an experimental model of behind-the-lens optics utilizing the Keplerian and Galilean folded optics concept and unique combinations of lenses, prisms, and mirrors. This concept will also be utilized to address the next largest problem in low vision_reduced peripheral fields. An experimental model of a minifying system will also be developed. Prototypes will be field-tested with clinic populations in Phase II.Because of the inclusion of cosmetic considerations in the design of telescopes, it is anticipated that a greater number of visually impaired persons will use telescopes. Through increased level of usage these people will enjoy an optimum level of residual vision and become more active and productive.National Eye Institute (NEI)

In Phase I of this project, a new design for a Keplarin and Galilean low-vision telescope was developed using a folded-optics concept. The new design allows a 3x telescope to be mounted into and behind the spectacle lens. The cosmetic improvement was made without giving up magnification, field of view, or functional properties.This Phase II research will take the theoretical design, along with the preprototype developed, and examine different combintions of lenses and prisms to improve and increase magnification and field of view. The important aspects of positioning, scanning, ocular rotation, and overall appearance of the optical aid will be studied. A simple method for mounting the telescopic aid to the lens and frame will be developed.Practical availability of various components, construction, and assembly in order to keep this low-vision aid within a reasonable cost are important considerations.Clinical evaluations on visually impaired individuals will provide input into changes that will be incorporated in the final product to be Produced in Phase III. This new cosmetically acceptable design means a greater number of visually impaired individuals will enjoy an optimum level of utilization from their residual vision and become more active and productive.National Eye Institute (NEI)