RI, or Rod Intercept, as measured by the AdaptDx is the time it takes in minutes for your vision to adapt from bright light to darkness. Dark adaptation is greatly impaired in the early stages of macular degeneration. As a result, your RI can provide the earliest warning sign of age-related macular degeneration (AMD) before it affects your vision.
We now have a new device called the AdaptDx Pro. Check it out here: [ Ссылка ].
