Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 edition. Excerpt: ...If he refuses, we tell him to go elsewhere. Our first object is to preserve our own reputation. That is of more value to us than his money. If he will not do what we know is best for him, we refuse to treat him, and it is rarely that we fail to keep the patient and to give satisfaction. However satisfaction must never be promised. Often the best glass for the patient is not satisfactory at first. It may not even be comfortable, but we know that if we follow the rules of higher prisms we cannot do harm. One word in regard to bifocals. Do not use them if you can avoid it. There are three reasons for this: 1. The reading lens is usually added to the inside of the glass for distance. The line of vision for reading is therefore not at right angle to the lens, and the obliquity produces a cylindrical effect, causing an artificial astigmatism. 2. The "chips" are so small that the field'of vision is very limited, and if the presbyopia is great they interfere with seeing the ground as one walks. 3. Proper prismatic combinations cannot be employed. All of these objections can be avoided by the use of grab fronts, which are very handy and in which the lenses are easily and cheaply changed as the presbyopia increases. All eyes should be retested as often as once a year, and the glasses exactly adapted to the case. A foolish notion prevails among a certain class of people to the effect that they should do without glasses as long as possible, lest having begun to wear them they can never leave them off. As well might a mother refuse to nurse her new-born child fearing that when it has once established the habit of eating it can never stop. The needs of the eyes should receive prompt attention, and it is the duty of the oculist and the...
