Sir, I'm a 45-year-old woman wearing glasses since i was 18. I was given a combination of +1.5 (sph) and -.75 (cyl) for near vision, in addition to distant vision power. I want to know whether for near vision minus power is ok. Also, why my optometrist added -.75 (cyl) to my near vision, while a year ago my ophthalmologists added only +1.5 for near vision ?
Thanks,
Uma