CooperVision Expands Parameters for Avaira Toric CLs

Starting this month, CooperVision Inc. is expanding its parameters for its Avaira toric contact lenses with new +0.25D to +6.00D sphere powers to correct for hyperopia. A 2011 study indicated that 15.7 percent of hyperopes were also astigmatic. These new options join the existing parameter range, including sphere powers of plano to -6.00D in 0.25 steps; -6.50D to -10.00D in 0.50 steps; cylinder powers of -0.75, -1.25, and -1.75; and axes from 10 degrees to 180 degrees in 10 degree steps. Read more.;