I found an answer here: http://www.stingyspecs.com.au/entering-prescription.html
"BAL: If you see the word 'Bal' or 'Balance' in the glasses prescription for one eye, then enter BAL as the sphere power for that eye. The word 'Balance' or 'Bal' is used to show that the prescription in that eye is not important, as the eye has no useful vision. When balance is entered, then a lens of similar power to the good eye is used for the balance lens, this makes the glasses look 'balanced'." --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://glassyeyes.blogspot.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en -~----------~----~----~----~------~----~------~--~---
