A Simple Guide to Capturing Eye Images for Glaucoma Screening
Video courtesy of Julián Espinosa @JulianEspinosaOculoplastico
To use Glaucoscan.ai, you’ll need a clear retinal image (also called a fundus photo) of one eye. You can capture this using a smartphone, a 20D or 28D handheld lens, and our low-cost 3D printed device. The image must show the optic nerve and surrounding retina.
Hold the lens 2–4 cm in front of the patient’s eye, then align your smartphone flashlight through the lens until the retina is visible. You may need to adjust angles and distance to find the clearest view. Make sure the eye is dilated for optimal clarity.
Use our low-cost 3D printed device to maintain the alignment between the light source and the 20D lens for consistent imaging.
Turn on your smartphone’s video mode (with flash), move slowly, and pause when the optic disc is in focus. Then take a screenshot of the clearest frame to upload for analysis.
For best results, dim the room lights and ask the subject to keep both eyes open while fixating on a still object. Dilation is required for optimal clarity.