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Clinical aspects of the SR-IV Programmed Subjective Refractor
American Journal of Optometry and Physiological Optics
|October 1, 1982
Summary
The SR-IV device provides accurate refractive error and visual acuity measurements comparable to traditional methods, while being faster and preferred by patients. This technology may also aid in estimating near addition by measuring accommodation.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Refractive error assessment is crucial for vision correction.
- Traditional methods like the Phoroptor are time-consuming.
- A need exists for efficient and patient-friendly eye examination tools.
Purpose of the Study:
- To evaluate the efficacy and patient experience of the SR-IV device for refractive error assessment.
- To compare the SR-IV device with conventional Phoroptor testing.
- To explore the utility of the SR-IV in measuring amplitude of accommodation.
Main Methods:
- Five studies involving 682 eyes of factory workers and their children.
- Comparison of refractive error and visual acuity measurements between SR-IV and Phoroptor.
- Patient-reported ease of use and confidence in SR-IV results.
- Measurement of amplitude of accommodation using a separate study.
Main Results:
- SR-IV demonstrated equivalent refractive error and visual acuity results compared to the Phoroptor.
- SR-IV testing was significantly faster than conventional techniques.
- Patients found the SR-IV easy to use and expressed confidence in its outcomes.
- Amplitude of accommodation measurements were successfully obtained.
Conclusions:
- The SR-IV device is a viable, efficient, and user-friendly alternative for refractive error assessment.
- Its speed and patient acceptance offer advantages over traditional methods.
- Amplitude of accommodation measurement with SR-IV may assist in determining near addition prescriptions.