National Geographic : 1949 Jul
What is EXAMINATION: Professional exa inationr y ur sight w orth forpossible pathological eye conditions. your sight ... $25...$35.. 50? The probability is you wouldn't hesitate to spend whatever is necessary to make certain you'd go on Seeing properly. It's worth a lot to see well. But REFRACTION: Scientific measurement of actually, in most cases, the cost of good vision is your ability to see. surprisingly low. The fee you pay, whether $25 or i less, $35, $50 or more - depends on: you receive. Your own special seeing problem. The quality and style of glasses your prescription calls for. The professional and technical services of Oph PRESCRIPTION: (Crefullv prepared profes- thalmologists, Optometrists, ()phthalmic I)ispensers sio Iliconcsions a. :heinstructions nees. are widely available and within the reach of all. The sary Itocorrect ouirvision cost of their services, including glasses \wh1en needed, is low - only a few pennies a day during the life of the average prescription. American ) Optical Founded in 1833-the world's largest suppliers to the ophthalmic professions. INTERPRETATION: Careful technical and scientific compounding of the exact materials Coporight 1919 American Optical Company of your prescription. FITTING: Scientific, minute adjustment of RE-EVALUATION: Verilication of the refrac- SERVICING: Assurance hat the rquirements your prescriptionto your eyes. tion and the prescription, of your prescriptionare being constantly maintainined.