Before revision: 9 oz., and with a range of +16.87 to -19.12 and -6.00 cylinder, with auxiliary lenses to increase these to +18.87/-21.12 /-8.00 .
After revision: 9 oz., and with a range of +16.87 to -19.12 sphere and 6.00 cylinder, with auxiliary lenses to increase these to +18.87/-21.12 sphere and 8.00 cylinder .