Lutein is not effective when your child always blinks.
Children blinking all the time is usually due to conjunctivitis, dry eye, inverted eyelashes, etc., and lutein is not able to treat the above mentioned diseases.
Conjunctivitis is caused by an infection of the conjunctival tissue and needs to be treated with antibiotic eye drops, such as levofloxacin eye drops and moxifloxacin eye drops.
Dry eye is caused by insufficient tear secretion in the eye, which needs to be treated with artificial tear drops, such as sodium vitrate eye drops and polyethylene glycol eye drops.
Inverted eyelashes are caused by the abnormal direction of eyelash growth, which need to be removed or corrected by blepharoplasty.
Lutein is a nutrient, not a drug, and does not treat the above conditions, so it will not relieve your child’s blinking symptoms.
If your child has blinking eyes, you should go to the ophthalmology department of the hospital to have the cause identified and then instruct the patient to take treatment.