Silicone Hydrogel Drops What Is The Best Type Of Re-wetting Drops For Silicone Hydrogel Contacts (and Why)?

What is the best type of re-wetting drops for silicone hydrogel contacts (and why)? - silicone hydrogel drops

Silicone hydrogel contacts differently from regular soft contacts, and I saw that only certain brands and types of solution should be used with them (which should not be used Renu with them).

As noted in http://www.aclens.com/silicone-hydrogel- ...:
Studies have shown that some systems of care for the cleaning of lenses with silicone hydrogel, while other side effects that may result due to the toxicity. Solutions Aquify, Optifree Express Clear Care versatile and have been approved by the FDA for use with silicone hydrogel. Clear Care has to be an acceptable hydrogen system based on the use of these lenses. Some studies have shown Renu MultiPlus to negative effects on the cornea, when combined with silicone hydrogel lenses used (lens-source spectrum to use in August 2005). Moreover UltraCare SoloCare and are not intended for use with silicone hydrogel lenses recommended.

So my question is: What's new rewetting drops? What is not good / why?