The eggplants are are about 2 months old, the plant was until a week ago where large white spots started spreading. It seems like there are bugs, there are small brown/black dots or insects inderneath the white layer
Eggplants Have White Splotches
Certified GKH Gardening Expert
Looks to be a Leaf Miner.
Treat the plants with Neem Oil.
These links will help you.