This manual is written to assist the student of optics or the ophthalmology resi- dent in reviewing optics. It is particularly suitable as an optics Board review. However, it was not intended to accomplish the far greater task of encompassing the entire field of geometric optics or even of teaching all that the ophthalmologist needs to know of visual optics or refraction. This manual represents the distillation of lecture notes for an optics Board-review course given at the Massachusetts Eye and Ear InfIrmary, Harvard Medical School, for the last seven years. This optics lecture series, which...