How red-blue glasses training works
Red-blue (strictly, red-cyan) glasses have two differently coloured lenses: the red lens mainly passes red light, the cyan lens mainly passes cyan light.
The screen draws different content in red and in cyan; with the glasses on, each eye can only see its own share of the picture. That is dichoptic viewing -- a split view.
The split lets the training call on a specific eye: the key target goes to one eye only, supporting information to the other, and neither can sit out -- only together do the two views make the whole picture.
Compared with traditional patching, split-view training keeps both eyes working at the same time and emphasises cooperation, rather than covering one eye entirely. Each approach has its place -- which one fits is a question for the doctor.
Red-blue training glasses are easy to buy online and inexpensive; the red lens can sit on either side, and the software has a setting for it.
Vision Training turns split-view practice into nearly 20 home training games, with a training plan and progress curves, running in the browser on computers and tablets.
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This article is educational content, not medical advice; consult an ophthalmologist or optometrist about diagnosis and care. Vision Training is a home vision-training tool, not a medical device.