Soft Toric Contact Lens Fitting

Question 1

Toric Design :

Toric back surface with?

Answer 1

Spherical front surface

Question 2

Toric Design :

Spherical back surface with?

Answer 2

Toric front surface

Question 3

What does lens must align with?

What cannot happen?

Answer 3

Power meridians of eye
Cannot rotate
Must be stabilized

Question 4

What assist but does not prevent rotation?

Answer 4

Toroidal back surface

Question 5

Where should prism be added?

Answer 5

Bottom of the lens

Question 6

What happens the the oxygen with thick lens base?

Answer 6

Reduced

Question 7

How do lens markings vary?

Answer 7

By brand

Question 8

Where are the locations of the toric markings?

Answer 8

3 and 9 o clock

6 o clock

Question 9

Does the toric marking indicate astigmatism axis?

Answer 9

no

Question 10

What do toric lens markers indicate?

Answer 10

The lens orientation required for the indicated prescription

Question 11

How do you adjust the astigmatism axis based on amount of rotation?

Answer 11

LARS

Question 12

What do you do if lens rotates left?

Answer 12

Add the amount of rotation to the original prescription axis

Question 13

What do you do if lens rotates right?

Answer 13

Subtract the amount of rotation from the original prescription axis