neutralising spherical and toric lenses ( tutorial 2 )

Question 1

How to neutralise meridian?

Answer 1

observe up and down movement and see what movemement

Question 2

What happens if you

Answer 2

same speed of movememnt and same direction

Question 3

How to neutralise spherical lens?

Answer 3

• Determine whether it is positive or neg and the movement and thickness
• Slow speed means you have a higher power lens to neutralise and vice versa

Question 4

What does it mean the faster movement?

Answer 4

closer to neutralisation

so choose small power for neutralising lens

Question 5

What does it mean with slow movement?

Answer 5

choose a higher power for neutralising