Ukuvikelwa kusuka ku-UVA (400nm) band yemisebe ye-UV imbangela ye-conjunctivitis, i-cataract.
I-CT (Isikhungo Sokuqina) Ibanga: + 0.2 ~ -0.15mm (ye-1.15mm)
ET (Edge Thickness): + 0.2 ~ -0.15mm (okwe-1.15mm)