When I was doing my training in contact lenses, I was taught that cylindrical corneas need toric GPs to stabilize them. As I have traveled the world discussing contact lenses, I have asked practitioners far and wide whether they agree with this statement. I have also asked “At what cylinder power do patients need toric GPs?” But, it really is a trick question. Here is why.
Read More: http://www.clspectrum.com/newsletters/contact-lenses-today/june-4,-2017