This isn't going to be used in hospitals or reduce doctors workload
Eh. This has been being researched by various companies for years.
The use case is not in hospital clinics.
In the UK, and other countries, there is a national screening programme for people with diabetes called the Diabetic Eye Screening Programme.
This screens everyone with diabetes 12 years and older every year, by taking digital photographs of the retina (and macula). Currently, these are then stuck in a queue to be graded by a human (within a target of 6 weeks), with 10% of the "normal" ones then being regraded by another human and up to 100% of the "abnormal" ones being regraded by a second human.
The people grading just answer a series of yes/no questions like "is there retinal thickening within 1DD of the centre of the fovea" or "are there new vessels on disc (NVD)". The system then generates a numerical "grade" of the severity of the condition. If the "grade" is high enough, the images are sent to someone qualified (like an eye doctor) to "gatekeep" a referral to Opthalmology, and the priority of any referral.
Once referred into hospital, the doctor will be looking at the retina and making a decision, not a computer.
All this system will be used for is to get rid of / act as a check on the current human graders. In most cases, these graders aren't qualified ophthalmologists, but just people hired and sent through a training programme. Anything identified as "abnormal" will still be sent to someone qualified to decide on if referral into hospital is necessary just as now.