What is hyperopia reserve? Is it better for children to have more hyperopia reserve?

Generally speaking, a newborn baby has a small eyeball and a short eye axis, and both eyes are almost hyperopic. However, as the baby grows and develops, the degree of hyperopia will gradually decrease and return to normal. This process is also called "emmetropization". The "hyperopia reserve" refers to the normal range of hyperopia for children of different ages during their growth and development.

Hyperopia reserve at different ages

Usually children under 3 years old have about 300 degrees of hyperopia, which gradually disappears after 12 years old.

Does insufficient hyperopia reserve mean myopia?

In addition to normal consumption of hyperopia reserve, many bad eye-use methods and bad living habits may cause the hyperopia reserve to be overdrawn faster, such as excessive use of electronic products, lack of sleep, unbalanced diet, etc. However, insufficient hyperopia reserve does not mean myopia, it just increases the risk of myopia.

How to maintain good hyperopia reserve?

0**1- Reduce the time of using electronic products **

It is recommended to minimize the frequency and duration of children's use of electronic products. Generally, the time of using electronic products should not exceed 15 minutes each time, and should not exceed 2 times a day.

02-Enhance outdoor sports

Outdoor exercise is an important way to prevent excessive consumption of children's hyperopia reserves. It is recommended that primary and secondary school students maintain about 2 hours of daytime outdoor exercise every day. If outdoor exercise is not possible due to special circumstances, they can look into the distance through balconies, windows, etc. and get exposure to natural light.

03-Sufficient sleep and balanced nutrition

Children's nutritional status and sleep quality are closely related to their physical fitness in adulthood. It is recommended to maintain more than 8 hours of sleep a day, develop good eating habits, eat more fruits and vegetables, reduce sugar intake, and ensure balanced nutrition.

04-Pay attention to your sitting posture

When reading or writing, keep your body one fist away from the table, and keep the book about 33 cm away from your eyes (about half the length of an adult's arm). Do not read for more than 45 minutes each time, and try to read and write in a well-lit place.