During your eye test, the optometrist will check for any refractive errors and assess the type of vision correction you need. During the test, your optician will look at the overall health of the eye and record any issues. They will then create the prescription lenses needed in order to provide clear vision.
Sometimes, your eyeglass prescription can be wrong because you didn’t give accurate readings in your eye exam (especially if you’re experiencing eye fatigue). It could be due to human error from an incorrectly written prescription. It could also be because your prescription has changed over time. Just one wrong number in your prescription can dramatically change your overall vision. Any medications you are on, the quality of the measuring instruments in your eye test and your biorhythm can also all lead to fluctuations in visual performance.
If your glasses prescription is even slightly wrong, it can cause several side effects such as:
- Blurred vision
- Worse vision in one eye while the other eye is closed
- Eye strain