I noticed something like this on my right eye yesterday. It looked like a pimple whitehead on the uppper inner eyelid just under the eyelashes.
So just before bedtime, I cleaned the area and the eyelid with an occusoft eye pad.
Today it looks like the whitehead thing is gone already!
Probably a plugged oil gland. You can use warm compresses and clean with occusoft eye pads and use occusoft foam eyecleaner. These are over the counter.
Might work. If not see an Eye MD
JCH MD