Handheld Retinal Projection System Tested Successfully
Published: Jun 21, 2007The Osaka City Kita Hospital in Japan developed a new hand-held retinal projection system as a low vision assistive technology device. With this system, low vision patients read more and smaller characters than with the use of video display.
The system utilizes the Maxwellian view and provides a clear image without refractive error correction. Mayumi Kaida of the Osaka City Kita Hospital evaluated this low vision reading device in comparison to a face-mounted video display of closed circuit television system.
Almost all subjects tested in the evaluation reached a smaller character size than with the video display. The maximum reading speeds were almost the same between the two devices, according to Kaida. “With our retinal projection system, low-vision patients read more and smaller characters than with the face-mounted video display. Thus, our new device appears to be helpful as a low vision aid,” said Kaida.
Source: RNIB Vision 2005
