Question
If both parents have high myopia, does it mean their child will definitely develop myopia?
Answer
High myopia indeed has a certain genetic predisposition. To understand these issues, we need to know that myopia is primarily determined by the following two factors:
- Genetic Factors: Studies have shown that children from families with high myopia have a higher incidence of myopia, and the genetic predisposition for high myopia has been recognized. However, the genetic predisposition for general myopia is not as evident.
- Environmental Factors: These play a crucial role in the formation of myopia, including reading at an improper distance, prolonged reading times, excessive or insufficient lighting, reading while driving or walking, and lying down to read—these are all risk factors for developing myopia.