About Careers MedBlog Contact us

D-EYE, The Low Cost Digital Opthalmoscope, To Ease Eye Examination in Undilated Eyes

by Julia Samuel on May 30, 2015 at 5:18 PM
Font : A-A+

D-EYE, The Low Cost Digital Opthalmoscope, To Ease Eye Examination in Undilated Eyes

Smartphones are now used as Opthalmoscopes to record the image of the eye at ease. An Ophthalmoscope is used by a health professional to see inside the fundus of the eye and other structures. But they are not easy to use.

Dr. Andrea Russo, an ophthalmologist, devised the D-EYE, a smartphone lens attachment that turns a variety of smartphones into digital ophthalmoscopes. Light comes from the smartphone's LED, off-axis from the camera lens. A path of light from this LED delivers the light exactly coaxial to the camera using a combination of levers and beam splitters.


It gives a better visual of the pupil and eye. Once you see the red reflex from the eye, the D-EYE is correctly focused. You can increase the field of view by moving the phone/D-EYE closer to the eye, without changing the focus.

"D-EYE uses the principle of direct ophthalmology. It's like looking through a keyhole - the closer you are to the keyhole, the wider the field of view you have beyond it, said Dr. Russo.

Using the smartphone's auto focusing capabilities, refractive errors can be corrected to compensate between -10D myopia to +10D hyperopia. Even with undilated pupils, it's possible to scan the retina with a field of view of 5-8 degrees.

Optic disc with pupils as small as 2mm, can be viewed so the D-EYE can offer a rapid screening for glaucoma or hypertensive retinopathy for undilated pupils.

Source: Medindia


Recommended Reading

Latest Medical Gadgets

Having Flu or COVID-19? New Sensor can Tell You in 10 Seconds
Is it the flu or COVID-19? A new sensor can tell you whether you are positive for flu or COVID-19 in 10 seconds.
How Does a Biohybrid Device Restore Function in Paralyzed Limbs?
A novel type of neural implant was found to restore limb function to amputees. The implant sheds insights into brain-machine interfaces.
Wearable Sensor for Monitoring Muscle Atrophy
The wearable sensor for muscle atrophy, the muscle condition can be used by an astronaut on a long mission to keep track of his health.
New Custom 3D-Printed Heart Replicas Look like Real Human Heart: Here's How
Newly developed custom 3D-printed heart replicas look and pump just like real human heart.
 Surgical Robotics Market Size to Hit $30.7 Billion by 2030
What is the market size for surgical robotics? The market size is expected to expand at a compound annual growth rate (CAGR) of 18.0% from 2023 to 2030.
View All
This site uses cookies to deliver our services.By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use  Ok, Got it. Close

D-EYE, The Low Cost Digital Opthalmoscope, To Ease Eye Examination in Undilated Eyes Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests