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Published on: February 11, 2014
Comparison of the PlusOptix S09 and Spot Vision photorefractor to cycloretinoscopy
Funda Dikkaya1, Sevil Karaman Erdur2
1Department of Ophthalmology, Medipol University School of Medicine, Istanbul Medipol University, Bağcılar, 34124, Istanbul, Turkey. fundadikkaya@hotmail.com.
Insights
The PlusOptix S09 and Spot Vision devices offer acceptable results for screening children's vision. However, these photorefractive devices should not be solely relied upon for spectacle prescription.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Vision Science
Background:
- Accurate refractive error assessment is crucial for pediatric eye care.
- Photorefractive devices offer a non-contact method for measuring vision in children.
- Comparing new technologies with established methods like cycloplegic retinoscopy is essential for validating their clinical utility.
Purpose of the Study:
- To compare the accuracy of refraction measurements obtained from the PlusOptix S09 and Spot Vision photorefractive devices against cycloplegic retinoscopy in children.
- To evaluate the performance of these devices across different age groups.
Main Methods:
- A prospective study evaluated 136 eyes of 68 children, divided into two age groups (5-9 years and 10-18 years).
- Refraction measurements including spherical equivalent, spherical power, cylindrical power, and axis were recorded using PlusOptix S09, Spot Vision, and cycloplegic retinoscopy.
- Statistical analysis compared the measurements obtained from the three methods.
Main Results:
- Both PlusOptix S09 and Spot Vision showed statistically significant differences in spherical equivalent and spherical power compared to cycloplegic retinoscopy across age groups.
- Cylindrical power measurements also differed significantly between the photorefractive devices and cycloplegic retinoscopy.
- While acceptable for screening, discrepancies highlight limitations for precise prescription.
Conclusions:
- The PlusOptix S09 and Spot Vision devices provide acceptable outcomes for vision screening in children.
- These photorefractive devices should not be used as the sole basis for prescribing corrective lenses.
- Clinical decisions regarding spectacle prescription require confirmation with traditional methods like cycloplegic retinoscopy.
Purpose:
The purpose of this study was to compare refraction measurements for children with the PlusOptix S09 and Spot Vision with cycloplegic retinoscopy.
Methods:
One hundred thirty-six eyes of 68 children (26 boys and 42 girls) were evaluated prospectively. The subjects were separated into two groups. Group 1 comprised the subjects age between 5 and 9 years. Group 2 comprised the subjects age between 10 and 18 years. Photorefraction with PlusOptix S09, photorefraction with Spot Vision and cycloplegic retinoscopy were performed in each patient. Spherical equivalents, spherical power, cylindrical power and axis values were compared between three methods.
Results:
The mean age of the patients was 7.12 ± 1.5 years in group 1 and 12.24 ± 1.8 years in group 2. Spherical equivalent and spherical power measured with PlusOptix S09 were statistically smaller than measured with cycloplegic retinoscopy for group 1 (p = 0.001, p = 0.001) and for group 2 (p = 0.000, p = 0.000). The mean cylindrical power measured with PlusOptix S09 was not statistically different compared to cycloplegic retinoscopy for both groups (p = 0.314, p = 0.05). Spherical equivalents measured with Spot Vision were statistically smaller than measured with cycloplegic retinoscopy for both groups (p = 0.000, p = 0.012). Spherical power measured with Spot Vision was statistically smaller than measured with cycloplegic retinoscopy for group 1 (p = 0.000), but the difference was not statistically significant for group 2 (p = 0.084). The mean cylindrical power measured with Spot Vision was statistically higher than cycloplegic retinoscopy for both groups (p = 0.000, p = 0.012).
Conclusions:
PlusOptix S09 and Spot Vision devices give acceptable results for screening, but prescription of spectacles should not be made according to PlusOptix S09 or Spot Vision devices alone.
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