I prefer glasses for the comfort factor (I always wear shades outside in daylight anyway) and for the fact they don't fog up like goggles do. I have a good pair of wraparound ballistic glasses and will always wear those where allowed.
However, I will say that full seal goggles are the safer option, and I will wear my fan-equipped ESS Land Ops where full seal goggles are required. ALthough even with anti-fog treatment and fans, in hot humid weather, they're always fogging over.
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