I would suggest not waking her every hour, her eyes could be red from being overtired. If she's back at her birthweight there's no harm feeding on demand
This would be my advice for a full term birth but I'm not sure if it is different for preemies.
OP: 7minute feeds isn't unusual for newborns as they are so sleepy - even more so if being woken for feeds. Also ever baby feeds differently and every woman's breasts contain different numbers of milk ducts, so length of feed can't really indicate how much milk is being taken. Poo and wee output is a much better indication.
it'll give your milk time to replenish and mean she gets a bigger meal when she does feed so she'll feed longer and get more of the fatty milk.
I'm not sure I agree. Milk doesn't need to replenish as it can be made as a child feeds - although baby might have to work harder and be patient. Yes when feeds are spaced out you may be able to feel milk being stored in your breasts as they get full, but this isn't how breasts are supposed to work. They don't have any structures in them for storing lots of milk as they produce it on demand. Spacing feeds out too far can lead to engorgement which has its own issues (blocked ducts, poor latch etc.). If you have been told that you can now feed on demand because back to birthweight then I'd trust your baby knows when she's hungry but please feel free to wake her to feed if you are getting uncomfortably engorged to avoid these issues.
Also don't forget to take care of yourself, give yourself time to rest and snack lots (have things like carrot sticks and bananas on hand for feeding time) it'll make your milk better which will also ensure she gets enough. Also don't worry so much, if you're having wet and dirty nappies chances are she's doing great!
Agree - you need to care for yourself definitely!
It's really all up to you mama what you decide is best in your situation. Understand why people are giving the advice they are (i.e what problem they want to avoid etc.) and then you have to decide if this makes sense to you in your situation.
And remember none of this lasts forever - these newborns are different everyday - hang in there!
PS: The red eyes may be a virus etc. so if it doesn't improve or you are at all concerned then please seek medical advice a I have no idea what this could be.