What will be the prescription of spectacles in a patient having simple hypermetropia with the rule astigmatism?
Patient has Hypermetropia, hence plus lens should be used.
With the rule astigmatism => Vertical meridian more curved than horizontal meridian.
Hence, +3D at 180o in used.
-2D at 180o
-0.5 at 90o
+1D at 90o
+3D at 180o