David Thomas contact lenses

Essential Multifocal Calculator

Click here to download the Essential calculator.

Essential Calculator

The file is a Zip file. Open the zip file and extract the data into a folder. Run setup from the folder you have placed the files.

 

 

 

 

 

 

designed for the individual eye

home :: gas permeable lenses :: gas permeable materials :: soft contact lenses :: topography instruments :: resources :: about us