Have you played around with the current vision features? I am pretty sure even gpt-4.1 can give you pretty good descriptions of e.g. screen captures, including being able to "read" and reproduce text.

yes, there are multiple addons giving screen readers the ability to prompt ai-s for image recognition. they work rather well, btw, though the value is often situational. agentic behavior might help further, though it will need some polishing.