Enough, but not too much. It;s okay to have a plump guinea pig, but overfeeding can kill them. I'd give you guinea pig one handful of dry guinea pig food every day as the main food, and make sure that they have a constant supply of both hay and fresh water.
For these and other reasons, scleral contact lenses can cost significantly more than standard contacts; in fact, it is not uncommon for scleral contacts to cost three or four times more. While not typical, in cases when a complex, highly customized scleral lens is required, cost can be as high as $4,000 per eye or more.Most insurance programs do not automatically cover the full cost of scleral contact lenses. In some cases, vision insurance may reduce the cost of your lenses and/or fitting fee.n comparison, most conventional GP contact lenses are 9.0 to 9.5 mm in diameter and cover only 75 to 80 percent of the cornea. Another category of gas permeable lenses bridges the size gap between conventional GP lenses and mini-sclerals.
Cost of Contacts versus Cost of Glasses. Unless you are planning to buy the most basic glasses and wonât replace them for a few years, contact lenses are almost certain to be cheaper. On average, people spend about $300 on new eyeglasses. A yearâs supply of contact lenses costs an average of $350 to $400.he average cost for a box of daily disposable contact lenses is $45. The nice thing about them is that they donât need to be cleaned. You simply put in a new pair every day. The average cost for a box of 30-day contacts, which only need to be replaced once per month, is $34.