Cass, T. E. Astelman, active 1927

The art of preserving the sight unimpaired to an extreme old age, and of re-establishing and strengthening it when it becomes weak : with instructions how to proceed in accidental cases which do not require the assistance of professional men, and the mode of treatment proper for the eyes during, and immediately after the small pox ; to which are added observations on the inconveniences and dangers arising from the use of common spectacles &c. &c. / by an experienced oculist.