[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.159.158.180. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
July 1974

The OphthalmetronA Clinical Trial of Accuracy

Author Affiliations

Boston
From the Massachusetts Eye and Ear Infirmary and Harvard Medical School, Boston.

Arch Ophthalmol. 1974;92(1):10-14. doi:10.1001/archopht.1974.01010010014004
Abstract

The Safir Ophthalmetron was tested clinically at the Massachusetts Eye and Ear Infirmary. The refractive error of normal eyes was determined by two separate retinoscopies, by subjective refraction, and by the Ophthalmetron. Results of each method were compared statistically.

The Ophthalmetron proved to be accurate. The spherical equivalents, spherical power, and the axis showed insignificant differences between the various refractive methods. The Ophthalmetron read greater astigmatism than did the refractionists, but its clinical significance was doubted.

Effectiveness of the machine was limited by pupil size, patient cooperation, and technician accuracy.

×