How do I join World Council of optometry?
The ISO and ANSI standards classify UV-blocking contact lenses into two groups in line with the lens’ absorptive capacity at its minimum thickness. Class 2 UV-blockers must absorb at least 70 percent of UVA and much more than 95 percent of UVB radiation. Class 1 UV-blockers must absorb a minimum of 90 percent UVA and…
