![Why doesn't Costco allow you to select a different BC option for their brand of contact lenses? Even if I change the selections in the other boxes, there is still nothing other Why doesn't Costco allow you to select a different BC option for their brand of contact lenses? Even if I change the selections in the other boxes, there is still nothing other](https://i.redd.it/n2vdbrk56q9a1.jpg)
Why doesn't Costco allow you to select a different BC option for their brand of contact lenses? Even if I change the selections in the other boxes, there is still nothing other
![If my lens prescription has a base curve of 8.4 will wearing a lens with a higher base curve just slide around and fall out? Would a base curve of 8.6 still If my lens prescription has a base curve of 8.4 will wearing a lens with a higher base curve just slide around and fall out? Would a base curve of 8.6 still](https://qph.cf2.quoracdn.net/main-thumb-455704087-200-tgqdbbexsrefdlyvesnrcxnadhdievjj.jpeg)
If my lens prescription has a base curve of 8.4 will wearing a lens with a higher base curve just slide around and fall out? Would a base curve of 8.6 still
![Average contact lens base curve of all studied materials as measured... | Download Scientific Diagram Average contact lens base curve of all studied materials as measured... | Download Scientific Diagram](https://www.researchgate.net/publication/51984319/figure/fig4/AS:203023398772745@1425415958250/Average-contact-lens-base-curve-of-all-studied-materials-as-measured-directly-from-the.png)