Robots or any part of an automated production line with a camera typically has a light as well to either see in low light conditions or to ensure it always sees with a similar amount of light hitting the lense.

They addressed this on the Orville. The glowing dots were not eyes. The droid had sensors that did all the work. The "eyes" were an aesthetic addition.

I really like the design of Assaultron from Fallout 4, they didn't have such issue because their eye is placed just above the glowy part, and the glowy part is the head laser that will one shot you.

So long as the light isn't coming from BEHIND the lense then you can think of it being like a camera flash

Or just think of it as the power indication LED being made stylish

To be fair it makes it harder to tell where the cameras are pointed (assuming they're not wide angle lenses and they're trying to work similarly to humans)