When studying development, we often distinguish between three basic aspects or domains of development: physical, cognitive, and social-emotional.
I think I would recommend not letting him play. Possibly call 911, or bring him to a hospital.
Answer:
The reason her grandfather might understand her father better than hers could be because it's his son. Her grandfather raised her father. Which could effect their communication.
The procedure is a refraction or vision test. The doctor may use a computerized refractor or simply shine a light into your eyes.
Codependency is the correct answer, hope this helps
