Difference between revisions of Guide:Reading glasses prescriptions
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==Spherical== | ==Spherical== | ||
{{main|Spherical}} | {{main|Spherical}} | ||
Spherical is the overall correction, in all directions. It is measured in [[diopters]]. A minus value means the lense is used correct [[myopia]] and a plus value means it is used to correct [[presbyopia]] and/ or [[hyperopia]]. | Spherical is the overall correction, in all directions. It is measured in [[diopters]]. A minus value means the lense is used correct [[myopia]] and a plus value means it is used to correct [[presbyopia]] and/or [[hyperopia]]. | ||
==Cylinder== | ==Cylinder== | ||