0-2 Months: sees light, bright and monochrome (except blue), bright and large objects from a distance of 25-50 cm, looks at the light . He notices his mother. It sees surrounding objects better than those in the center. Vision is at about 5% level.

2-3 Months: He can see eye to eye with someone who looks at him closely. It begins to track light and vividly colored, bright, large objects moving on a horizontal axis. After a while, he begins to watch light and vividly colored, bright, large objects moving on a vertical axis. Tracking objects rotating in a circular manner develops last.

3-6 Months: Detects and tries to hold the location of vividly colored, bright, large objects.

6-10 Months: He can see and hold increasingly small objects from a greater distance (1-3 m). If an object that he has known before sees half of it, he can guess and recognize the whole of it. Vision is at about 10% level.

10-18 Months: Can see objects at longer distances (3-6m), recognize people.

18 Months: He can clearly see and recognize the details of toys, pictures in picture books.

24 Months: Can see the smallest detail of objects, distinguish similarities and differences.

3 Years old: His vision has reached about 80% of adult vision.