shengetsretinaphoto

In this twenty-first century, the medical science has developed hugely in favor of human wellness. From organ transplant to laboratory made cells, we have witnessed a lot of developments. The latest edition of this list is the infrared camera. So, now a patient does not need any irritating drops for the eye treatment.

The researchers of the Illinois University have discovered a camera which is made from the easily available materials from online markets and which costs around $185. This camera can photograph the retina without administering the irritating pupil-dilating eye drops.

Most of the general cameras are using white light which reacts to the Iris’ muscles. This muscle controls the opening of the pupil and it closes in the presence of the strong light source. The eye drops help the pupil to make the retina open and let the doctor examine. However, in this case, the camera first emits infrared light which does not react with the Iris’ muscle. This infrared light is used to focus the retina in just a few seconds.  After focusing, if an actual photo is needed, just one quick white light flash is delivered to take the picture.

Although there are other cameras available in the market for the treatment, they cost a lot. In contrast to that, this new camera is very cheap and easy to carry anywhere.

The camera is made based on Raspberry Pi2 computer. It is a low cost, single board computer designed to teach the children about the build and program of computers. This board has been attached to a small cheap infrared camera and a dual infrared and white light emitting diode to control the function of the camera. The other cheap and easily available components are used to complete this camera.

At this stage, this device is just a prototype for future improvements. However, it already showed its capacity to examine and photograph the retina without using the drops. As per Illinois University’s Dr. Bailey Shen “It would be cool someday if this device or something similar was carried around in the white coat pockets of every Ophthalmology student and used by physicians outside the Ophthalmology discipline as well.”