astigmatism with the rule

a·stig·ma·tism with the rule

astigmatism in which the greater curvature or refractive power is in the vertical meridian.
Mentioned in ?
References in periodicals archive ?
He suggested that finer suture which remain in situ without irritation, causes wound compression and increases vertical curvature hence astigmatism with the rule.
This can be explained by the wound compression by the sutures, irrespective of the suture technique as well as reactionary tissue edema, resulting in steepening of the vertical meridian, hence astigmatism with the rule.
0 mm in internal diameter (stretch incision) was performed on the steeper axis and the results suggested that surgical induced astigmatism (SIA) following superior incisions in cases of astigmatism with the rule (n = 29) amounted to 1.