Do You Know The Effect Of Blue Light On Eyes?
- By Dr. Naveeda Adam
- 28 Aug 2023
- Verified by Dr Bright Owusu Prempeh
Key highlights or summary
- Blue light exposure from screens is less damaging than that from the sun
- LEDs emit more blue light
- Nighttime light exposure maybe linked to diabetes, heart disease and obesity
- Blue light suppresses melatonin and interferes with the sleep cycle
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- Will blue light from electronic devices increase my risk of macular degeneration and blindness?
- Blue light has a dark side
- Munsamy AJ, et al. Evidence on the effects of digital blue light on the eye: A scoping review. African Vision and Eye Health. 2022 May 31;81(1):9.
- Zhao ZC, et al. Research progress about the effect and prevention of blue light on eyes. International journal of ophthalmology. 2018;11(12):1999.
- Should You Be Worried About Blue Light?
- Do Blue Light Glasses Work?
- Gomes CC, et al. Blue light: A blessing or a curse?. Procedia Manufacturing. 2015 Jan 1;3:4472-9.
Frequently asked questions
Get the information you need.
Blue light from screens can contribute to digital eye strain and disrupt sleep patterns. While it's not directly responsible for permanent eye damage, prolonged exposure can lead to discomfort and sleep disturbances.
Natural blue light from sunlight is essential for regulating our sleep-wake cycle. The concern arises from prolonged exposure to artificial blue light emitted by digital devices, which can lead to eye train and interfere with sleep patterns.
There is currently no scientific evidence supporting the claim that blue light exposure from screens causes permanent vision loss or eye diseases like macular degeneration. However, it's important to take measures to reduce digital eye strain and protect eye health.
You can reduce blue light's impact by using blue light filters on devices, adjusting screen brightness, practicing the 20-20-20 rule (taking breaks every 20 minutes), and limiting screen time before bedtime. These measures can help alleviate digital eye strain and improve sleep quality.
Blue light exposure is a concern for people of all age groups, particularly those who spend extended periods in front of screens. Children, teens, and adults can all experience digital eye strain and disrupted sleep patterns from excessive screen time. It's important to practice healthy screen habits regardless of age.
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