This is not a problem as scorpions are nocturnal. These detect the slightest air and ground vibrations. This helps it select a good spot to dig a burrow, to drop the sperm packet and sniff out scorpion pheromones. Book lungs which reveals the scorpion's ancient lineage. Fossil scorpions were marine-dwelling, up to 1m long, had compound eyes and gills.
Scorpions sense in-coming prey by air and ground vibrations.
To kill the prey, a scorpion seizes the prey in its pincers then injects venom with its tail to kill or paralyse it. A large scorpion may just rip the prey up. A scorpion can only eat liquid food. So to eat its prey, it breaks the exoskeleton and spits digestive juices into the prey to liquefy the prey's insides. Some scorpions shred their prey, put the bits into a cavity just below their first legs and spit or secrete digestive enzymes onto the prey.