The scientist first tested their theory on human lens cells. The studies showed that when lanosterol was applied to the cells, lens proteins stopped clumping and transparency increased. Next, they studied rabbits suffering from cataracts. After administering lanosterol for six days, 85% of the rabbits had a significant lessening of the severity of their cataracts. Cataracts in dogs were also investigated. Black Labrador Retrievers, Queensland Heelers and Miniature Pinschers, all dogs with significant naturally occurring cataracts, responded in similar fashion as the rabbits.