Fathwa, - Can I Be Alone With Men To Test Their Eyes?

Question:
I am a sister, who is studying to become an optometrist (i.e. to see
if people need glasses and the health of their eyes), am I allowed to
test men's eyes and be alone in the room with them as I test them?
Answer:
There are, Alhamdulillah, many practicing Muslim women in your
intended field. They find ways around being in unlawful
seclusion--which remains unlawful, such as keeping the door open
enough for people outside to see. If you talk to other practicing
Muslim optometrists serious about the Shariah, you'll see that there
are many ways around these concerns.
And Allah alone gives success.