Lens Materials in the Prevention of Eye Injuries

Thin Black Leatherette Board. Near Fine/No Jacket. No Additional Printings. Flexible Board. 8vo - over 7¾" - 9¾" tall. 73 pages; 5 p. index; 4p. 'References;' illlustrated with 19 Fig.s (photos, graphs and tables); from the author's 'Summary and Conclusions:' ".Industrial safety programs have largely eliminated eye accidents in major companies. Constant awareness of prevention of blindness can now wipe out most eye injuries in other areas of life and literally replace the inherent hazards of glass lenses with attractive protective shields in all spectacle wearers. .these safer lens materials should progressively replace the hazardous and indiscriminate use of crown glass.".