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.
If you wear contacts on a daily wear basis and clean and disinfect them after each use, expect your annual cost for contact lens care solutions to be roughly $150 to $200. So to determine your combined yearly contact lens costs for lenses and solutions, add $150 to $200 to the above totals.f you replace your contacts approximately every two weeks, this means you need about five boxes (30 lenses) per eye, or a total of 10 boxes per year. This comes to an annual contact lens cost of roughly $220 to $260 (lenses only).