Your prescription will expire based on how often your eye doctor wants to see you for an eye exam. Aside from wanting to see your friendly faces, there are a couple of other reasons why a prescription expires. For one, your eyes can change over time which causes your prescription to become inaccurate. This can cause eye strain, headaches and blurry vision. Also, it’s important to have routine exams to check the health of your eyes and catch any developing eye conditions, even if your prescription remains the same from exam to exam. Based on these important factors your doctor will set an appropriate expiration date – typically of 1 or 2 years.
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