Sagittal Depth Considerations in the Selection of the Base Curve Radius of a Soft Contact Lens

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Abstract
The relationship between the sagittal depth of the human cornea and the sagittal depth of an optimally fitting soft contact lens was examined. Base curves were not always well chosen. A new system for selecting the number, range and distribution of base curve radii is reported so the range of saggital depths clinically encountered is covered evenly. The saggital increment between adjacent base curves is then 0.1 mm.

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