2-11 Building a Toiric System From a Spherical and Plus Cylindrical Lens

[@fghmkvjhk]

thanks so much its very helpfull lecture

[@ViguLiviu]

Finally I understand why my lenses are written differently.

[@seshachary5580]

Thank you regards awesome explanation

[@bezawittemesgen9983]

thanks so much

[@pleighto77]

So maybe I missed it. so is the axis into or out of the page? i mean is the zero on the optical power cross looking at the patients face, or would it be the eyes looking out?

[@halimaht5404]

Thanks for your educational videos. I really appreciate and like them Sir. But, i am wondering where is the 2-10 video?

[@user-kilrilirrlri]

ruclips.net/video/xRAov5ocWrs/видео.html

[@trivendraabhay5996]

very nice dear sir

[@PawanKumar-vw5hg]

Answer de

[@PawanKumar-vw5hg]

+3. 00 /-3.00

[@khimarunkhola]

+3.00 Dc

[@user-kilrilirrlri]

Spherical equivalent= +1.5D, because +3 is spherical power & -3 is cyl power, As sph. equi= sph power + (cyl power÷2) ⇒ 3 + (-3/2) = *+1.5D* . Note: DS= diopter sphere, DC= diopter cylinder.