Does cylinder power depend on sphere power in eyeglasses? If I decrease the sphere power, does cylinder correction become weaker? Do I need to add power to the cylinder to compensate for
![Lens Form: Sphere, Cylinder, and Axis - Laramy-K Independent Optical Lab - Freeform Lenses and AR Coatings Lens Form: Sphere, Cylinder, and Axis - Laramy-K Independent Optical Lab - Freeform Lenses and AR Coatings](https://www.laramyk.com/wp-content/uploads/2010/05/plus-lens-prisms.jpg)
Lens Form: Sphere, Cylinder, and Axis - Laramy-K Independent Optical Lab - Freeform Lenses and AR Coatings
![Hi. Can anyone help me read this. I read online that cylinder means astigmatism, and sphere means myopia. So do I have astigmatism? Do I have myopia at all? : r/glasses Hi. Can anyone help me read this. I read online that cylinder means astigmatism, and sphere means myopia. So do I have astigmatism? Do I have myopia at all? : r/glasses](https://preview.redd.it/xlyhk8kxg1751.jpg?auto=webp&s=0e03107c3853f6eb7e81794aa082c56ab4fa2811)
Hi. Can anyone help me read this. I read online that cylinder means astigmatism, and sphere means myopia. So do I have astigmatism? Do I have myopia at all? : r/glasses
![Optometrics stays current with the latest developments in eye care - EYE CARE IN NORTHRIDGE & CHATSWORTH Optometrics stays current with the latest developments in eye care - EYE CARE IN NORTHRIDGE & CHATSWORTH](http://www.optometricsofchatsworth.com/uploads/4/1/2/9/41296221/published/rx-explained.jpg?1503607264)