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The AO SR IIItm Subjective Refraction System: comparison with Phoropter measures
American Journal of Optometry and Physiological Optics
|August 1, 1978
Summary
The AO SR III Subjective refraction System accurately estimates refractive error, showing good agreement with traditional methods like the phoropter. This automated system offers a reliable alternative for clinical refractive assessments.
Area of Science:
- Ophthalmology and Optometry
- Vision Science
Background:
- Accurate refractive error measurement is crucial for vision correction.
- Conventional methods like phoropter use require skilled operators.
- Automated systems aim to improve efficiency and consistency in refraction.
Purpose of the Study:
- To evaluate the accuracy of the AO SR III Subjective refraction System.
- To compare its performance against conventional subjective refraction methods.
- To assess its agreement with automated refractors.
Main Methods:
- Subjective refractive error was measured in 530 eyes using the AO SR III system.
- Measurements were compared with those obtained using a phoropter.
- Data was also compared with a previous study and an auto-refractor.
Main Results:
- The AO SR III system demonstrated good agreement with conventional refractive methods.
- The instrument showed capability in estimating refractive error reliably.
- Comparison with the Acuity Systems 6600 Auto-Refractor was also performed.
Conclusions:
- The AO SR III Subjective refraction System is a capable tool for estimating refractive error.
- It provides results comparable to established clinical refractive techniques.
- This system offers a potentially efficient and accurate method for subjective refraction.