Ophthalmology The focal length of the lens is 0*75 m, what will be its refractive power – A 0.75D B 1.5D C 1.33 D D 1.25 D 💡 Explanation The focal length of the lens is 0*75 m, what will be its refractive power - ✓ Correct Answer: C. 1.33 D