Clinical trials were conducted with the use of Pelli-Robson contrast sensitivity test and Farnsworth-Munsell 100 Hue colour vison test. A group of young adults ( aged 21-28 ) participated in the trials. They were performing tests using three pairs of lenses with blue light filtering coating: Ideal Max Blue UV – JZO, BlueControl – Hoya, SeeCoat Blue UV – Nikon as well as a pair of control lenses wit Ideal UV coating – JZO. With the use of spectrophotometer the spectral transmittance of these lenses was measured. Blue light filtering had no effect on contrast sensitivity of the subjects. It was not proven that any statistically significant differences appear between total error scores in colour vision test when using control lenses and blue light filtering lenses.