Improved lensometry with a programmed calculator-lensometer combination.
The arithmetic associated with prescription calculation seems to be the major source of error and inefficiency in the performance of traditional lensometry. We have found that a programmed calculator used in combination with a lensometer achieves greater accuracy in less time than does the lensometer alone. This approach may be a useful alternative to the physician who does not wish to make a substantial investment in a fully automatic device.
D003201:Computers; D005123:Eye; D006801:Humans; D007909:Lenses; D055095:Optics and Photonics; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis*