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May 1978

Fitting Guide for Hard and Soft Contact Lenses: A Practical Approach

Arch Ophthalmol. 1978;96(5):920. doi:10.1001/archopht.1978.03910050512043

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This book is a practical approach for those learning and those already engaged in the fitting of contact lenses.

The first chapters deal with basic concepts, patient selection, and terminology. There is a detailed and very helpful section on soft lenses. Several such lenses are discussed in depth, including their composition, mode of manufacture, and methods for fitting. This portion of the text is excellent; it is comprehensive and clearly written and is thus of great teaching value. Nomogram-like fitting guides are of help but are not the last answer. One must be aware of size, base curves, and sagittal depths as they affect the fit.

In a similar fashion, the authors discuss hard lenses. Again, there are various types on the market with differing designs and composition. These are discussed and their relative merits are presented. The cellulose acetate butyrate lens certainly holds great promise if manufacturing difficulties can

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