OT skills guide: Best vision sphere

This video was launched to OT members in 2017 For more Skills Guides from OT : https://www.aop.org.uk/ot/cpd/education-library This video demonstrates how to determine the best vision sphere for a myope during a subjective refraction routine. We explain the duochrome test and how to control accommodation. This is used before and after determining the astigmatic component of a subjective refraction.