Low Vision Aids Clinical Trial
Official title:
Comparative Effect of Cylindrical Lenses Verses Spherical Equilient on Contrast Sensitivity
the concept of spherical equivalent plays a pivotal role in simplifying the prescription and enhancing communication between eye care professionals and patients. The spherical equivalent is a calculated value that condenses the spherical and cylindrical components into a single power.
Mathematically, it is determined by adding half of the cylindrical power to the spherical power (SE = Sphere + (Cylinder/2)). This calculated value serves as a convenient representation of the overall refractive error, aiding in a more straightforward understanding of the prescription. Understanding their individual and collective impact on contrast sensitivity opens up new avenues for refining corrective interventions and enhancing the overall quality of vision. This article aims to demystify the intricate relationship between spherical equivalent and cylindrical correction, and their collective impact on contrast sensitivity. ;
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