MacKay, John. Secrets to healthy eyes : : a practical guide to eye health, diseases of the eye and methods of correction / [electronic resource] / John MacKay.. — Canfield, Ohio : : Best Pub.,, c1988.. — 133 p. : : ill. ; 23 cm. Includes index. ISBN: 0915421089 9780915421084 Subjects--Topical Terms: Eye--Diseases.Eye--Care and hygiene.