The far point of a myopic person is \(80~\text{cm}\) in front of the eye. What is the power of the lens required to enable him to see very distant objects clearly?
1. \(-1.25~\text{D}\) 
2. \(+1.25~\text{D}\) 
3. \(-2.12~\text{D}\) 
4. \(+2.12~\text{D}\) 

The near point of a hypermetropic person is \(75~\text{cm}\) from the eye. What is the power of the lens required to enable the person to read clearly a book held at \(25~\text{cm}\) from the eye?
1. \(+2.67~\text{D}\) 
2. \(-1.25~\text{D}\) 
3. \(-2.67~\text{D}\)
4. \(+1.25~\text{D}\)