"It's blinding but I try to keep my eyes open because I hear many people say that"
BSB account posted a video of putting lemon juice in the eyes and then looking up at the sky at 12 noon on the Dragon Boat Festival to clear the eyes.
In addition, some accounts also give instructions on looking up at the sky at 12 noon on May 5 to make your eyes sharper.
VTDH account said that according to family tradition, on the occasion of the Duanwu Festival, at exactly 12 noon, they stand and look towards the sun. However, she did not know the meaning of this, she just felt it was too hot.
LDT account said that his childhood was associated with the memory of going outside at noon on May 5 to look up at the sky to wash his eyes. This was a habit that had been shared by his grandmothers for many years. According to him, looking up at the sky for 30 minutes would help wash his eyes.
A young man got lemon in his eye on the occasion of the Dragon Boat Festival.
"I don't know if it can be washed out, but after looking at it for a while, my eyes were dazzled and tears flowed," Mr. T. shared.
ML account also shared that although it was a bit dazzling, she tried to look at it clearly. This is what she heard from her grandmother.
No scientific basis, even harmful to the eyes
Doctor, pharmacist Nguyen Thanh Triet, Deputy Head of the Department of Traditional Medicine, University of Medicine and Pharmacy, Ho Chi Minh City, said that many people practice this custom to clear their eyes and wash their eyes, which has no scientific basis.
"Even lemon juice has a strong pH that can damage the eyes, changing the pH of tears. In addition, looking up at the bright sun at noon with high UV intensity can damage the eyes," Dr. Triet shared.
In recent days, the weather has been extremely hot and sunny across the country, and the UV index across the country is at a high risk level. Therefore, Dr. Triet recommends that people pay attention to protecting their eyes, avoid arbitrarily dropping acid solutions into the eyes, and look directly at sunlight because it can be harmful to the eyes.
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