A calculator to quickly and easily convert spectacle Rx to a contact lens Rx and its spherical equivalent

Take advantage of the tools and contact lens calculators below.* They’re designed to help you maximize fitting effectiveness, patient care and practice efficiency. Easily convert a patient’s eyeglasses prescription to the corresponding contact lens parameters.

Basic glasses to contact lens conversion charts take a single glasses lens power and show you the converted value for contact lenses. Typically, they show the results for both negative and positive power on either side of the chart.

Convert your glasses prescription to contact lens power with our easy-to-use calculator. Get accurate estimates for standard, toric, and vertex distance calculations. Input your current glasses prescription, including sphere, cylinder, and axis values. Select between standard conversion, toric lens, or vertex distance calculations.

Association of Optometric Contact Lens Education AOCLE would like to thank all sponsors for their support and commitment towards contact lens education DIOPTER TO MM CONVERSION CHART *-.&/’0%= 337.5 067-8% Diopters Radius (mm) Diopters Radius (mm) Diopters Radius (mm) Diopters Radius (mm) 37.00 9.12 46.00 7.34 55.00 6.14 64.00 5.27

Spectacle conversion calculator. Easily convert a patient’s prescription for glasses to the corresponding contact lens parameters. Efron grading scales. A standard clinical reference that helps quantify 16 contact lens wear-related anterior eye conditions. Ocumetra mEYE™ Guide.

The easiest way to convert your glasses prescription into your contact lens prescription is to use a conversion sheet I listed at the end of this article. In this sheet, you will find three columns. The middle shows the spectacle power.

Aug 27, 2020 · Contact lens fitting isn't an exact science, but this cheat sheet should make the process smoother! How do you use this cheat sheet? On the chart, note that the middle columns (yellow) refer to the absolute spectacle lens power in diopters. The left columns (blue) refer to a myopic spectacle RX converted to the respective minus contact lens RX.