Lets say far point of a myopic eye is 50 cm. It mean that he can only see till 50cm . So what should be the power of concave lens so that he can see object placed at infinite?

Lets say far point of a myopic eye is 50 cm. It mean that he can only

1.	Lets say far point of a myopic eye is 50 cm. It mean that he can only see till 50cm . So what should be the power of concave lens so that he can see object placed at infinite?
Answer» Lets say far point of a myopic eye is 50 cm. It mean that he can only see till 50cm . So what should be the power of concave lens so that he can see object placed at infinite?