Scientists and doctors from University College London (UCL) have reported a significant breakthrough in treating age-related macular degeneration, one of the most common causes of blindness in older adults, offering hope for vision restoration through a bionic retinal microchip.
Infrared Chip Replaces Retinal Cells
During clinical trials, 27 out of 32 patients suffering from age-related macular degeneration regained the ability to read and distinguish objects thanks to the implantation of a bionic microchip, advancing vision restoration research.
How the Retinal Microchip Achieves Vision Restoration
How it Works:
A 2×2 mm microchip is implanted into the central part of the retina. This device, equipped with infrared sensors and electrodes, captures signals transmitted from special infrared glasses. The chip then converts these signals into electrical impulses, which are perceived by the eye’s healthy nerve cells. In this way, the image from the glasses’ external camera is transmitted directly to the brain, effectively replacing the damaged light-sensitive cells. Crucially, the patient’s natural peripheral vision is preserved.
Results and Outlook
Following a rehabilitation period, 27 participants experienced partial or significant vision improvement. Some patients were able to read from the top to the bottom line on an eye chart. While side effects were recorded in 18 participants, almost all resolved within two months without lasting consequences.
According to UCL Associate Professor Mahy Mohit, the implant surgery takes only about two hours and can be performed in a standard ophthalmology clinic. This ease of procedure suggests the technology could be widely adopted for treating patients with the dry form of macular degeneration, which is caused by the death of light-sensitive cells due to aging and vascular issues.
