%0 Journal Article %T Hard and soft contact lenses: a comparison %D 1974 %R 10.1136/dtb.12.25.97 %J Drug and Therapeutics Bulletin %P 97-99 %V 12 %N 25 %X Contact lenses may be used to correct refractive errors, to treat diseased eyes, and to improve the appearance of disfigured eyes. Hard and soft lenses are now available. They have different properties and their relative merits depend upon the purpose for which the lens is required. %U https://dtb.bmj.com/content/dtb/12/25/97.full.pdf