Principles of refraction and prescribing in regular astigmatism
Sattar rajabi PhD candidate in optometry and vision sciences ,iran university of medical sciences
A prescription that has the least challenge for the patient is an art. In this presentation, while explaining the optics of regular astigmatism and conoid of sturm , its occurrence , etiology, types , prevalence , sign , symptoms , investigation and treatment are discussed. Guidelines and key points of prescribing at different ages and conditions, especially in anisometropic astigmatism and emmetropization phenomenon , amblyogenic values ; strategy for better tolerance of prescribing , do's and don'ts of prescribing , key points before prescribing and other modalities in correcting astigmatism are the most important points emphasized in this presentation