Comment on “Physical performance is associated with visual acuity in university students: results of a school-based study”

Dear Editor,

I was very glad to read the study by Wu et al.¹ in which they demonstrated that physical exercise might help improve visual acuity and university students should practice strength exercises to improve physical performance. However, some concerns should be raised in my opinion.

To begin with, it is believed that there may be an accompanying relationship between physical performance and vision level, but not necessarily a causal relationship. The promotion of eye exercises may help prevent vision loss. Therefore, the authors may have exaggerated the relationship between physical exercise and vision. Whether physical exercise can promote vision improvement needs to be further tested by queue studies.

In addition, the author also did not account for the research object and research background. The specific location of the subjects from China, what is special here. All subjects were not described in detail, such as age, gender, family background, major, interests, and hobbies. Only by describing the general demographic characteristics in detail can we draw reliable conclusions.

• Funding: none.

REFERENCES

• ¹
  Wu KL, Yang L, Sun X, He L, Du T. Physical performance is associated with visual acuity in university students: results of a school-based study. Rev Assoc Med Bras (1992). 2020;66(3):296-9. https://doi.org/10.1590/1806-9282.66.3.296
  » https://doi.org/10.1590/1806-9282.66.3.296

Publication Dates

• Publication in this collection
  19 Nov 2021
• Date of issue
  Sept 2021

History

• Received
  05 Feb 2021
• Accepted
  14 Mar 2021