Generally speaking, how to solve the problem always depends on concrete conditions. If there is no obvious striation or other problems beyond repair, in my view, i suggest you attempt to clean it. The effective way is using professional solution, however, if you run out of solution or forget to bring solution, maybe you can try these steps on the premise of washing hands totally. Next, you are supposed to pour water in hand and rub the contact lenses around in the water. In the following, you can use saline solution instead of cleaning solution to clean them. Last but not least, you use some eye drops to wash the contact lenses to eliminate bacteria. After all of these, i think you can use it again.
