I really can't imagine in what situation that the maid can cut your baby's eye-lashes by accident. Totally impossible. Obviously it's just an excuse and she even didn't request you to believe it but just to give an excuse as a response to you at that moment.
I fully understand that the burden will encounter when w/o a maid suddenly. So usually I just advise friends to find a new maid before firing. But for your case, I really think you should fire her immediately, otherwise your baby will be in danger. I just think your maid is crazy!!!
My Indo maid told my Pue Yuet that she used to cut her master's BB 眼睫毛, which made the 眼睫毛 longer like her. My Pue Yuet reverted to me, so I asked my maid not to cut my BB's 眼睫毛 or hair.
我鐘意你同我講 I Love U, I Love U Too!
You are the sunshine of my life. That's why I'll always stay around. You are the apple of my eye. Forever you'll stay in my heart.