How hard are eyeglasses to come by early?
Will I need that spot for something elses WAY more vital?
As mentioned, there are a pair of glasses directly in front of you when you wake up. When you wake up, there's a wall to your left, follow the wall forward to the counter where you'll find a pair of glasses and a skill magazine.
Four Eyes is a required trait if you want to maximize your characters stats as much as possible. Start with 6 Perception, get the implant, and then wear a pair of glasses with the 1st Recon Beret. You'll end up with 10 Perception and +5 Critical chance.
The most DT you can get from a helmet is 8, and that comes with -1 Charisma and only +5 Rad Resistance. The best headgear, aside from the 1st Recon Beret, is the T-51b Power Helmet. It has 4 DT, +1 Charisma, and +8 Rad Resistance.