Lie tie ? Should i fix it or not 19months

Stephanie

So my 19month has a upper lie tie and im wounder if i should get it fixed or leave it be. Doesnt seem to bother her but i dont want her to have to wait until shes older to see if shes going to have problems with it i rather have it fix soon as possible for she wont be in to much pain afterwards. Help i dont know what to do