Glasses that block blue light could be helpful to some
Q: Should I wear blue light blocking glasses while using a computer or any other screen?
A: Wearing glasses designed to block blue light emitted from computer and phone screens has gained popularity lately. However, the question remains: Is blue light truly harmful? Presently, there exists no scientific evidence proving that blue light causes damage to the eyes. Consequently, the Academy of Ophthalmology does not endorse their usage during screen time. Nonetheless, there is some indication that blue light might influence our natural sleepwake cycle, suggesting it’s prudent to avoid screens 2-3 hours before bedtime to prevent sleep disturbances.
The primary cause of eye strain during computer use typically stems from a reduced blink rate associated with screen time. This results in dry eyes, leading to irritation and blurred vision. Combating these symptoms can involve using artificial tear drops as needed and adhering to the 20/20/20 rule (every 20 minutes, take a 20-second break to look at an object at least 20 feet away).
While blue light blocking glasses may not be necessary for everyone, they could still provide some individuals with subjective benefits, such as reduced eye strain or improved comfort during prolonged screen use. Some users report feeling less fatigued or experiencing fewer headaches when wearing these glasses. Ultimately, the decision to wear blue light blocking glasses should be based on personal preference and individual needs. If you find that you experience discomfort or strain while using screens for extended periods, it may be worth trying out these glasses to see if they make a difference for you. However, it’s essential to remember that they are not a definitive solution and should be used in conjunction with other eye care practices, such as taking regular breaks and maintaining good screen ergonomics.
Dr. Elizabeth Rosenberger is an ophthalmologist with Ooltewah Eye Specialists and a member of the Bradley County Medical Society.