Opternative is not a replacement for a comprehensive eye health examination. Our licensed Ophthalmologists use Opternative’s on-line technology to evaluate a patient's visual acuity and a portion of the ocular health profile, diagnose refractive error, and issue a prescription for corrective eyewear, where clinically appropriate. Our services are limited to patients between the ages of 18 and 50 who are in good health. All tests are conducted and all prescriptions are issued based on the independent clinical judgement of an ophthalmologist. Because our services are not a replacement for an eye health examination, we encourage everyone to obtain a comprehensive eye health exam at least once every 2 years. We prohibit patients from taking an Opternative test more than 4 consecutive years without certifying that they have received a comprehensive eye health exam first. If you need help finding an eye care professional near you, please contact us at firstname.lastname@example.org.