Just to confirm a couple points from above:
Now the good old silver framed birth control glasses with the D ear pieces are no longer being issued. We (as I am V3 and entitled to it all) are to wear normal glasses for our daily wear, and are issued a civiy designed glasses with modified fram that fricton fits inside of the gas mask.
As for entitlement...for regular force, every 2 yrs :
V3-two pairs clear lenses
V2- one pair
for deployments (which is were your reserve entitilement comes in):
V3- two pairs clear, one pair tinted, one pair for your gas mask
V2- two pair clear, one for gas mask.
MJP described the new gas mask glasses well. The frames for your normal eye wear is up to your personal discretion, depending on how much out of your own pocket you wish to pay.