That is pretty high. Just make sure you rinse them off in the morning with a few drops of water. They could be too salty in other words and suck moisture out of your eye rather than keep it on your eyes. Using a few drops of water might wash the sodium chloride off so that your eyes don't dry out, but too much water will do the same thing. Start with a single drop of water in the morning to wet them after they rest in that solution all night.
Then put it in and see how it feels.
Then put it in and see how it feels.
