This video is about How to convert Spectacles prescription into contact lens prescription. In this video we will learn two examples with minus Spherical and plus spherical.
Thanks a lot, sir!!. I am from nonoptometry background but I started to learn the basics with your videos. Now I feel proud that I know something about optometry!!!
yes but also it can be different per patient. a CL is way smaller than a regular opth lens so it takes way less time for the light to hit your eye one two there is inherenty less distortion with contact lenses which is why those who need lenticular or myo go for a hard contact. You get the peripheral vision but its less power sometimes the same exact power as a spectacle RX.
I can able to see with single eyes clearlyby closing each eye..but if i see vision in both eyes i am getting too blurness..what can be the problem sir?
Sir please wat about 12mm as BVD , is one wrong using it, since BVD is constant? If u have a spherical value of less than or equal to + or - 2.00, must u do the math wen changing to contact lens? Sir please wen do u use 12mm and 14mm since BVD is constant? Thank u.
Why back vertex distance is not effective if the spectacle power is less than 5 dioptre ? Why ocular refraction decreases if the spectacle refraction is negative? Why ocular refraction increases if the spectacle refraction is positive?
Sir mene thode time se contact lense pehnna suru kiya h ..but i feels likw... Contact lenses me muje left eye se sab dikhta h ekdm clear...but jab nikalke chasma pehnata hu to Usme blur vision aa rha h....thoda bahot...aisa kyu ??? shayad half number ka differ ho skta h lekin....kafi had tk chasme se blur dikh rha
nah because power of a lens is different when you change the distance from the eye and how small a CL is compared to a full size opth lens. Some people have the exact same CL rx as Spec RX. It can be a guessing game
