Is it ok to let my 18 month old watch 2-3 minute cartoons a few times a week? Or is no digital viewing advised till they're 2?

Occassionally it is good to expose your child with ipad or tv. Restricting the duration is what you need to enforce. Like many has mentioned earlier it has its' pros and cons. By introducinh ipad or tv, they are able to sing along, dance with the music, learn their numbers, shape and abc. On the other hand prolonged exposure will affect their sleep and eye sight. So the best is limit the usage. At the end of the day it is up to individual parenting. Some may feel that it makes their life easier by letting them see or watch. You know what is best for your child. The decision is yours