How Do Contact Lenses Correct Myopia and Alter Near Point Vision?

[Dzano]

Homework Statement

The patient is myopic.

Relevant Equations

1/f=1/p+1/q

Its near point is 13.0 cm from the eyes and its far point is 50.0 cm.
a) What type of contact lenses should be prescribed to correct his nearsightedness.
Determine their focal length
b) Determine the near point of the patient when using lenses for the correction of myopia.

 

[jim mcnamara]

Show us what you have tried, please. Question a - what type of lens? -- for example