After undergoing PRK LASIK I was experiencing some pretty bad light sensitivity. I had 20/15 vision and still do, but staring at LED screens during school or down time was painful. Not to mention I was focusing on trying to keep my eyes open instead of listening to the professor’s lecture. I decided to try some cheap blue blockers to see if they helped at all. Surprise surprise they did. After learning this I decided to do more research on the exact science behind the concept of blue light blocking. •
Just like our bodies our minds are tethered to our circadian rhythm and controlled by daylight or lack thereof. During the day blue, green, and yellow light are present. This tells your melanopsin receptors in your eyes, which then communicate to your brain that it is daytime. This results in the decreased production of melatonin. As the day goes on the light spectrum changes blue light should decrease, but because we are constantly on devices that emit strong rays of blue light melatonin production is not allowed to occur. A few minutes of overexposure to blue light can delay natural melatonin production for hours. •
While these are definitely more expensive than your typical blue blockers they are worth it. The cheaper blue blockers generally block too much blue light during the day and too little at night. Remember we need blue light during the day to decrease melatonin production or else we would be tempted to take a snooze during class, work, etc. •
The yellow tinted lenses are for daytime wear and only block 75% of blue light. The red tinted ones block out all blue light to make your body and brain believe there is no blue light whatsoever in your vicinity. •
I just received these yesterday and they are definitely worth it. The brand is ( @truedark ). For those over the top people 🤪☺️ there are TrueDark dots that can be placed over smoke detector lights, etc.