A 3 year old child with 300 degrees of hyperopia and 400 degrees of astigmatism is usually not serious, but requires close observation and follow-up.
Three-year-old children are generally farsighted, with farsightedness reserve, 300 degrees farsightedness is generally normal, this farsightedness reserve is called physiological farsightedness, with growth and development, the eye farsightedness reserve will gradually decrease and disappear, and ultimately develop into orthoptic eyes. And in 400 degrees of astigmatism equivalent spherical lens conversion, the degree of hyperopia, on the contrary, less than 300 degrees.
High astigmatism in 3-year-old children may also be caused by factors such as upper eyelid compression and corneal morphology. If it is upper eyelid compression, it can usually be improved gradually with development. Regular optometry and follow-up of corneal morphology should be performed.
Children should take care of their eyes to avoid adverse outcomes.