Short sighted in one eye and perfect vision in other

[BizzyMissy]

My almost 9 year old has just had an eye test (the first since she was tested in Reception) and we were told she has perfect vision in one eye and -1.5 in the other. The optician said her perfect vision in one eye was most likely compensating for being short sighted in the other and that wearing glasses "when she needs to" would help her see with depth. We have a prescription for glasses and were told to come back in a year. Not sure whether to be worried about the fact one eye ok and the other not or worried about progression of the myopia down the line. I don't wear glasses; her father has mild myopia (-1.5) from adulthood. Has anyone come across this? The optician was very light on communication and I was very surprised and not prepared with questions. Thanks.

I had the same thing from age 11 when first had an eye test. I was prescribed glasses to see the blackboard in school.
Barely wore them throughout my youth until learnt to drive age 21 so needed glasses for that. Only other times I would wear them was for the cinema.
My vision has remained largely the same and I am now 57.
When I don’t wear my glasses I frequently stub my toe on my short sighted side as my perception of space/depth is a bit out.

I wouldn't be surprised if the other eye becomes myopic too.

Ensure that your daughter has plenty of time outside (this has a preventative benefit for myopia progression and isn't spending hours on a screen without a break.)

If it has prescription has reduced at the next test, you can consider myopia control lenses.

@Blackcats7 Thanks. Somehow feel better knowing that someone else had a similar/the same prescription and it hasn't caused any problems. I was thinking that she'd need for white board/screen at school, when she watches a movie at home (which happens rarely) and cinema. Can't think of anywhere else at the moment.

@theeyeofdoe Thanks for your message. Was reading that myopia in a child is usually genetic or environmental. A bit flummoxed as to why she has it as neither parent nor any of her grandparents had glasses before adulthood and she has barely any screen time at home and lots of outdoor time. But we will make sure we watch this. We will definitely be making sure she has an annual eye exam and will enquire about myopia control if her myopia deteriorates.