In this recent medical study, castor oil was found to exert cytotoxic effects on conjunctival cells. So it is the castor oil. In this study, other oils were used that did not cause cytotoxicity.
http://www.dryeyezone.com/talk/showthread.php?t=4458
Scout
http://www.dryeyezone.com/talk/showthread.php?t=4458
Scout

I do not wear glasses but am wondering if there is something out there that is non-prescription that I could try. I did order and try some Melanin Tint eyeglasses but did not care for them. I'm actually looking into getting a computer filter to help with the glare. Thank you for your time.
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