Ouch! You've got a headache and you don't know why. Maybe you've just gotten new glasses and you're worried that the prescription is wrong. Or maybe it's been way too long since you've seen the eye doctor and your prescription needs an update. Let's explore some possible reasons for that annoying pain around your eyes, forehead, and temples.
If it has been over a year since your last eye exam, it is definitely worth making an appointment to have your eyes checked. How do you know if you need glasses? Only a trained eye doctor can tell you for sure.
You know that an outdated prescription is not the headache culprit - because you just got a brand new pair of glasses. Well, your eye doctor may have warned you about this, but sometimes it can take a little time for your eyes to adjust to a new prescription. Blurry vision can occur - even with a correct prescription - as your eyes adjust. But any vision issues should resolve in less than two weeks. If two weeks have passed and you are still experiencing discomfort, please check back in with your eye doctor to make sure there's not a prescription error.
Eye strain comes from the overworking of muscles around the eye that are continually adjusting in order to focus. Repeated attempts to focus occur for different reasons; one is getting used to a new prescription. But eyestrain is also a common problem when wearing reading glasses while using the computer. Remember, reading glasses are for close-up work and the normal distance you sit away from a monitor is much farther away than where you would hold your reading materials. Eye strain also happens when we spend too much time staring at screens. Screen time exposure can be mitigated with anti-reflective lens options and by taking steps like adjusting the lighting in your work space, and following the 20-20-20 rule. The rule is - look at something 20 feet away for 20 seconds every 20 minutes.
There are reasons other than an incorrect prescription that could cause a headache from wearing glasses. Your glasses should be personally customized just for you. That's not just the prescription but also the position of your eyes, the angle and position of the frame, and the distance between your pupils, which should all be accounted for. Having an incorrect frame size or frame adjustment can cause pain behind the ears, where the temples pinch into the sides of your head. If you need a frame adjustment, your eye doctor can make adjustments to your glasses for more comfortable wear.
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Also see: Reading Glasses | How to Measure Pupillary Distance or PD | What Are Progressive Lenses? | Understanding Your Prescription | Need to Order Lenses Only?