Re: Vision issues?
When light of certain frequencies stimulate the rods on the surface of the retina, they can sometimes result in temporary saturation, ie blinding white light. If you look away during the process, you will note a trailing effect as though the luminance is following your eye movements. The same is true in certain instances by staring at an object for a minute or so and then quickly shifting to a white or light-colored background, finding that a persistence of vision of the object remains for a few moments. These effects are not a sign of a problem at all and are entirely normal.
Additionally, dissimilarity in light contrast between one eye and the other is entirely normal and you should be aware that significant stress can cause this distinction to become quite prominent in some instances. This too, however, is entirely benign and does not suggest a problem.
Best regards,
Rutheford Rane, MD (ret.)
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Best regards and Good Health