Lighting Science & Research: Vision Restoration
Eyes are the doorway to the most crucial of senses. Retinitis Pigmentosa (RP) and Age-related Macular Degeneration (AMD) are progressive blinding diseases caused by the death of retinal rods and cones in the eyes. The visual system remains relatively intact but is unable to respond to light.
The Challenge: Measurement of Light Response
The University of Pennsylvania conducts research into the diagnosis and treatment of RP and AMD. The purpose of this research is to develop improved methods of diagnosis and effective treatments for these diseases. In today’s research there are several approaches for rendering the surviving neurons sensitive to light and restoring a light response to a diseased retina. Testing the effectiveness of these approaches requires a way to deliver different wavelengths of light at various temporal frequencies and intensities. The challenge is to apply these different light stimuli, observe the results, and use the results to objectively assess the effectiveness of the various approaches for restoring retinal light response.
Alternatives: Conventional vs. LED Lighting
While conventional lighting techniques provide a broad spectrum of light, it is difficult to accurately provide precise wavelengths without filters. In addition, the ability to provide accurate timing and intensity levels needed for this research often requires shutters and other controls complicating the system. LED lighting overcomes all of these problems, provides precise wavelengths, and provides an engineering ease in regulating intensity and temporal control.
Recommended Solution: Custom LED Fixtures
Nemalux was selected due to their experience and expertise in the field of LED technology. Nemalux engineers are able to meet the demands of fabricating the custom LED fixtures required by the University of Pennsylvania.
Implementation: LED Specifications
Nemalux engineers in conjunction with the University’s researchers developed the specific wavelengths and control features needed to facilitate their research and experimental requirements. Among these were UV-380nm, Blue-470nm, Green-505nm and Cool White (6500K) LEDs along with the specific features required to integrate the Nemalux LED fixtures into the University’s experimental control system.