According to that link, the OVR-G glasses do not provide chemical splash protection-only projectiles and dust. 

We wear goggles for all our laboratory and outdoor work.  There are a number of over the glasses goggles, I wear the XTR monogoggle by Jackson Safety (http://www.jacksonsafety.com/linkdetails.cfm?groupid=3010334 ).  It  looks like a scuba mask (blue), but is very comfortable and fits over large glasses.  Another style a lot of folks like is the Radians Cloak safety goggles which work well with slightly smaller glasses (http://www.radians.com/main/p-36-radians-cloak-dual-mold-goggle.aspx ).   Another is Sperian UVEX Stealth (http://www.uvex.us/uploadedFiles/ProductConfiguration/ProductLiterature/Uvex_Stealth_OTG_DS_3pg.pdf ), although it seems like that one worked best with smaller glasses.  The Honeywell website shows that they have a UVEX goggle that comes in a variety of magnifications-1.0-3.0 diopter. (http://www.honeywellsafety.com/Products/Uvex/Eye_and_Face_Protection/Uvex_Stealth%c2%ae_Reader.aspx?site=/americas )

We have found that for a comfortable fit, it’s best to have a variety of styles, since there are so many different facial shapes and glasses to cover.  The goggles that are designed to be OTG’s (Over-the-Glasses) have a slot for the side arms of the glasses to go in so they don’t dig into your temple.  Where the nosepiece for the glasses and goggle hit also affects comfort, so a different brand of OTG may do the trick.    

Penelope A. Stege (Penny)
Senior Chemist
CF Industries, Inc.-
  Plant City Phosphate Complex

Hi all-

I wear glasses but the safety glasses I listed are the best. Very comfortable. I found mine on sale locally for $1.50.

The  OvrG™ Economical Clear Safety Glasses fromhttp://www.safetyworks.com/catalog/product1142.html.

Aniello Tambasco

Wilkes University Chemistry Department

Wilkes-Barre, Pa 18766