Do the new materials keep their promises regarding good lubrication?

To investigate the lubrication on different soft contact lenses during a week of wearing them. Twenty-five subjects participated in this research for six weeks and they wore six different soft contact lenses (Pure Vision B&L, Pure Vision II B&L, Air Optix, Focus N&D CIBA, Biofinity Cooper, Acuvue Oasys J&J). The contact lenses were randomly selected and the subjects did not know which contact lens they were wearing. Lubrication was examined on each individual three times: at the moment they first inserted the contact lenses, after all day wearing them and after one week, all using the standard "Tear analyses procedure" with the Slitlamp and immediately followed by recorded grade (1-5). After one week every test person also gave their own evaluation of the contact lenses with a grade from 1-5. After six weeks, every test person had every contact lens in both of their eyes. The results were statistically analyzed and compared: statistics of favorites of the test persons; statistics of objective results of the optometrist; statistics of differences and the correlation between right and left eye; statistics of correlation of test persons result and optometrists result. The conclusion was made after the statistical analysis.