Eye Prescription Conversion Chart. We convert currencies units of measurement and we software to convert complex digital files from one format to another. They are not a replacement for a professional contact lens fitting by a qualified eye care practitioner.
Under-prescription is not giving you full correction and your vision at a distance is not as sharp as it could be. You have an eye chart and you want to know what you prescription should be based on what line you can read. Many different uncorrected prescriptions can yield a visual acuity of 20200.
Be sure to use above conversion chart and not wear contact lenses that are higher diopters than you actually need.
The calculators are designed to aid eye care practitioners. You have an eye chart and you want to know what you prescription should be based on what line you can read. Eye doctors cant convert visual acuity like 20200 to an exact prescription they can only give you a rough idea. A visual acuity of 20200 is roughly equal to a prescription of -250 diopters.