rgp

Question 1

spherical lens on toric cornea

Answer 1

-poor vision
-poor centration
-lens aligns on flatter meridian and tear lens forms along steeper meridian

Question 2

Answer 2

WTR astigmatism

Horizontal band of touch
 Fluorescein pooling superiorly and inferiorly along the steepest meridian
 Poor centration- low or high riding
 Lens rocks back and forth on the horizontal meridian
Vertical meridian steepest- steepest meridian lies near the 90- degree meridian

Question 3

Answer 3

Against-the-rule
 Vertical band of touch
 Horizontal meridian steepest
 Poor centration- nasal or temporal
 Lens rocks on the vertical meridian