Which brand/model is recommended for the lens in the spectacles?
I am a IT professional with more than hours of screen time.
But I would like to avoid the blue light filter as it leads to a yellow tint in the vision.
Please advice which is the best lens in terms of clarity in vision and scratch resistance.
The current I options are:
1. Essilor lens with crizal Sapphire 360UV
2. Carl zeiss
3. EVA from specmakers
Please add if any other brand if its better than the above mentioned.
Due to keretoconus, eye lens wear. Normally how long once it has to be changed to new lenses. Please let
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