Children often experience situations where they don't look serious, but they don't feel at ease, such as frequently rubbing or blinking their eyes for no reason, or always having tears in their eyes. Some children may also be unwilling to go out, afraid of strong sunlight, or even unable to see clearly. Is it because children are being petty and unable to break the bad habit of not paying attention to hygiene, or is there another reason? Today, the doctor will analyze the four most common reasons with parents. If a child's eyes are injured, if dirt, especially hard dirt, enters them, the child will have obvious discomfort, and some foreign objects will get stuck on the surface of the eyes, so they cannot be washed away by tears; Alternatively, although the dirt has been washed away by tears, due to rubbing the eyes or other reasons, the corneal epithelium may be scratched, causing the child to blink frequently, shed tears, and be afraid of light. Parents should teach their children not to rub their eyes if they feel uncomfortable due to dirt in their eyes. The correct approach is to immediately tell the adults around them that the child can gently close their eyes, try crying, let the tears wash out the dirt, or immediately rinse their eyes with a large amount of clean water. If after the above attempts, the eyes are still uncomfortable, or very red, or even feel unable to see clearly, you should seek medical attention and examination from a reputable hospital's ophthalmology department as soon as possible. In addition, parents should tell their children that they must pay attention to protecting their own and others' eyes while playing to avoid accidental injuries. Be careful not to wave sticks during daily play, and do not run or play with sharp objects (such as pens, chopsticks, forks, etc.) in your hands. If you accidentally hit your eyes, be sure to inform your parents or teachers in a timely manner, observe changes in your vision, and seek medical attention if necessary. Inversion or trichiasis of the eyelids is common in East Asian children due to eyelid blepharoplasty, which causes the edges of the eyelids to curl slightly towards the eyeball. The blepharoplasty compresses the eyelashes, causing them to tilt towards the eyeball, which can be manifested as entropion or/or trichiasis. This type of problem often exists after birth. The eyelashes of infants and young children are delicate and soft. Although the eyelashes may rub against the conjunctiva and cornea, they usually do not cause foreign body sensation or corneal damage. Most children have mild symptoms during this period and can be observed first. As children age, their eyelashes will gradually harden, and the discomfort caused by trichiasis will also become more apparent. Around the age of three, children are likely to experience symptoms such as repeated rubbing of their eyes, redness, photophobia, blinking, tearing, and increased secretion. Once these situations occur, it is recommended to seek medical attention as soon as possible. Part or whole row of eyelashes poured into the eye and repeatedly rubbed against the eyeball can easily cause corneal epithelial damage. When the damage only affects the superficial surface of the corneal epithelium, it can be regenerated and repaired without affecting the transparency of the cornea and the visual acuity of the patient. If not taken seriously, it can lead to long-term damage to the cornea through eyelashes, which may form corneal scars and even permanently affect vision. Inflammation of the eyes in children is generally caused by conjunctivitis and keratitis. Children can exhibit symptoms such as blinking, squeezing, tears, and redness. Common conjunctivitis can be roughly divided into infectious conjunctivitis and allergic conjunctivitis. Infectious conjunctivitis is often caused by decreased resistance or lack of hygiene, accompanied by a large amount of "eye droppings"