A person wear glasses of power -2.5D. The defect of the eye and far point of the person without glasses are respectively.

A person wear glasses of power -2.5D. The defect of the eye and far po

1.	A person wear glasses of power -2.5D. The defect of the eye and far point of the person without glasses are respectively.
Answer» farsightness 40cm nearsightness 40cm nearsightness 250cm astigmatism 40cm Answer :B