Lensworld.com.au NewsBite - November 2017 6th May 2021 Buy More and Save! When purchasing daily disposable and monthly lenses it is best to buy the large pack sizes.Daily Lenses: We stock almost all of the 90 packs and are able to ship them straight away. It also works out cheaper per lens to purchase a 90 pack instead of 30 packs – Savings up to 43%Monthly Lenses: We stock most 6 packs of single vision lenses, and again it is far more economical to buy the 6 packs.View all Daily Lenses Here, and all Monthly Lenses Here. Did you know? Italian architect, mathematician and inventor Leonardo da Vinci (1452-1519) produced the first known sketches (in 1508) that suggested the optics of the human eye could be altered by placing the cornea directly in contact with water.