January 05, 2021 5 min read
Did you know there’s a thing called computer vision syndrome, and it affects 50 to 90 percent of computer users? Symptoms include eye strain, eye twitching, red or dry eyes, fatigue, headaches, more work errors, and a decrease in productivity. How do you keep healthy eyes during computer use?
If you experience any of these problems while looking at your computer, see an eye doctor. A doctor can make sure if your eyeglass or contact lens prescription is correct. Or if you don’t have corrective lenses they can prescribe some for you.
I have bad vision and own special pair of glasses prescribed just for the right distance to a computer screen—about arm’s length. These special glasses make all the difference. If I didn’t have these eyeglasses, I would need to tilt my regular glasses or move them farther down my nose to see the computer screen without blurring.
AllAboutVision.com has an article titled Computer Eye Strain: 10 Tips for relief . That site’s No. 1 tip is to get a comprehensive eye examination once a year.
“During your exam, be sure to tell your eye doctor how often you use a computer at work and at home,” the article states. “Measure how far your eyes are from your screen when you sit at your computer, and bring this measurement to your exam so your eye doctor can test your eyes at that specific working distance.”
The AllAboutVision article references a study of studies about contact lenses that says wearers have more computer vision problems.
All six [studies] revealed that contact lens wearers were more likely to have computer vision syndrome symptoms than individuals who wore eyeglasses only or did not need corrective lenses. Prevalence of symptoms ranged from 17 to 95 percent among contact lens wearers and 10 to 58 percent among non-wearers. Also, contact lens wearers were four times more likely to have dry eyes during or after computer use, compared with non-wearers.
One thing contact wearers can do is to wear regular eyeglasses during heavy computer use and then, after work or when they’re done using the computer, put in their contacts. After all, the only ones who will see you with your glasses on are your co-workers!
But people can have problems with their eyes or fatigue even when they don’t have glasses or contacts.
Other tips from AllAboutVision on reducing computer vision syndrome, for anyone, not just those who wear corrective lenses, include:
Another thing computer and other device users should do is to reduce blue light exposure. One way to do this is to set your device for night-time viewing during the dark hours. Also, there are apps to reduce blue light exposure, says VSP.com .
Some ways to avoid digital eye strain.
Also, the Better Vision Guide gives a more comprehensive set of tips  on reducing blue light exposure. The guide says the best way to avoid eye strain from blue light is to take frequent breaks from looking at the screen.
Harvard Health has a comprehensive article  about blue light, what it is, its health effects, and how to reduce it.
TheNextWeb.com also has an article  with 10 tips for reducing computer vision syndrome. One of their tips is to position the computer screen so the center of it is about 9 inches below your line of sight. Also, if you can touch your monitor screen, you’re sitting too close.
The last time I had an eye exam, my doctor told me you can’t hurt your eyes from using them. I guess he meant under normal circumstances. In the history of humanity, looking at a computer screen eight hours or more per day is not normal. Humans evolved to moving around and looking around at many distances every day.
June 24, 2021 3 min read
Erectile dysfunction. In combination, those are two of the ugliest words known to man. But can caffeine help you get it up?
Science hasn't found the definitive answer to this question, but one study concluded that fewer men who consume caffeine have problems performing. The study said:
Caffeine intake reduced the odds of prevalent ED, especially an intake equivalent to approximately 2-3 daily cups of coffee (170-375 mg/day). This reduction was also observed among overweight/obese and hypertensive, but not among diabetic men. Yet, these associations are warranted to be investigated in prospective studies
June 22, 2021 4 min read
Many breastfeeding mothers wonder if it's OK to take caffeine. In fact, many nursing mothers just avoid caffeine in case it would keep their babies fussy, jittery and awake.
The answer is yes, you can take caffeine while breastfeeding, as long as you don't go over about 300 mg a day.
It's an important question because caffeine is in so many products, and taking coffee, tea, or soda is such a common ritual.
And breastfeeding mothers may be tempted to take caffeinated products because they are deprived of sleep by their newborns' odd sleep schedule.