Could you please recommend an ophthalmologist (Seoul)?

I just wrote about multifocal lenses in another post, but I've never been able to get used to them. They're a bit more expensive than other glasses, and I just can't get used to them.

I just had my eyesight tested and fitted for glasses at an optical shop, but they told me to go to an ophthalmologist.

In life, what do you do when you go to the ophthalmologist except for a health checkup and an eye exam?

I've never been there.

I want to go to an ophthalmologist and get a general eye exam. Is there any ophthalmologist I can trust?

Or, if I go to any ophthalmologist, is the overall level of examination similar?