[The development of refractometry and means of optical correction in the USSR].
D000065:Accommodation, Ocular; D005139:Eyeglasses / Q000266:history*; D049673:History, 20th Century; D009907:Optometry / Q000266:history; D012029:Refraction, Ocular / Q000266:history*; D014586:USSR; D014786:Vision Disorders / Q000266:history*
Razvitie refraktometrii i sredstv opticheskoĭ korrektsii v SSSR.