My 4-m.o baby still doesn't recognize plush toys even though they're very colorful. Is it too early for them to recognize them?

In the first year, an infant’s vision improves greatly. From the blurry vision that he/she may have, to being able to see quite clearly. At birth, he/she can detect light, shapes and motion. He/she can only focus on things that are 20-30cm away. He/she will be able to make eye contact by the end of the first month. At three to five months old, the baby starts to differentiate different colours and could focus on smaller objects. His/her depth perception develops and would be able to focus on objects that are 1m away. The baby could also track movements of objects around him/her. By the time the baby reaches one year of age, he/she should be able to see quite clearly. However, his/her vision will continue to develop and would likely be fully developed by three to five years old. Here’s an article highlighting the developmental milestones of your baby’s vision: http://www.babycentre.co.uk/a6508/developmental-milestones-sight From the article, your baby should be able to differentiate different objects and colour from between three to five months. However, every baby develops differently. Here is a checklist that you can refer to for signs that indicate a more serious eye problem: http://www.parents.com/baby/development/physical/checklist-signs-your-baby-may-have-a-vision-problem/