Blue Light Blocking Lenses Don’t Affect Visual Function or Color, Study Finds

Blue Light Blocking Lenses Don’t Affect Visual Function or Color, Study Finds

When you look at blue light blocking lenses, you might wonder whether the lenses might affect your vision. Such questions deserve good answers. Much of the answers will, naturally, be subjective. Whether a lens changes color in a bothersome way or not depends on preference and perception. Recent research, relevant to this question helps shed some light on the issue.

Intraocular Lens Replacement

When vision, in old age, becomes obscured by cataracts, a surgery exists to offer relief. The cloudy cataract covered lens is removed and replaced with artificial intraocular lenses (IOL). These artificial lenses can be essentially clear, or tinted to block certain types of light (hopefully this part sounds familiar). As far as the technical parts of the surgery, we won't go into that. For our purposes, you only need to know what we already said: sometimes people have their eyes' lenses replaced with lenses that block certain colors of light.

The Study

The academic journal Optometry and Vision Science recently released a new study on light filtering IOL's. In the study, thirty patients underwent IOL surgery. In one eye they got an IOL that filtered UV light (typical lenses), in the other one that filtered blue light (unusual lenses). After two years they brought them in for evaluation to determine whether the lenses affected visual function.

The Results

They found no significant difference between the two eyes. In analyzing results, no color difference in either eye was found. Stated another way: the typical lenses and the blue light lenses were no different. Indeed, this result came after two years of having the lenses in place. Nevertheless, the promising finding from the study have encouraging applications.

The Applications

Those considering using blue light blocking glasses ask the same question this study asks. Like we mentioned at the beginning of this post, anyone worrying about living in an amber-tinted world deserves relief! No one expects you to spend two years wearing blue-light blocking glasses. However, the study tells us that over time your eyes adjust to the difference. Of course when you first put on glasses with a tint slightly different in color than your natural eyes you'll experience a small color change. Eventually, with regular use, your eyes will adjust. Furthermore, your eyes will thank you for taking care of them.

IOL and blue-light blocking glasses, obviously, are not identical. The comparison may only hold up in the area outlined so far in this post. Even if that's the case, the lesson learned here, hopefully, will lay to rest the understandable worries of those looking to protect their eyes.


All surgery and studies aside, blue light blocking glasses have some serious benefits! Even if you don't opt for the most extreme protection, various tints, colors, and levels of protection (GBLF) exist in blue light blocking technology. Taking action to protect your eyes should take priority, whatever your reason. You may not need a new lens, but using blue light blocking lenses now may help you avoid that in the future. Try a pair of blue light blocking glasses today. 

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