Prescription (eye exam) is not the business of optical store. You have to find an ophthalmologist to issue a prescription for you. It usually costs $50, but it may be covered by your issurance. Check your issurance policy before you make the oppintmant. It used to be covered by the Government, but was canclled 2 years ago. Now the Government covers younth (under 19-year old) and senior (65 up) once only every two years.