The types of eye diseases in children are: (1) Inability to look at the object in front of the eyes or will not follow the light to turn the eyes, suggesting that the child has very poor vision in both eyes, or even black haze. (2) Children who usually like to squint at things, tilt their heads to watch TV, and read books and watch TV at close distances may have poor vision and refractive errors (hyperopia, myopia, astigmatism, etc.). (3) Some children’s crooked head is caused by strabismus, known as ocular strabismus, two eyes in abnormal position to each other, such as: cross-eyed (internal strabismus), exotropia, upward strabismus, etc.. Involuntary swaying of the eyes, medically known as nystagmus. (4) Photophobia, children often squint to look at things, or have frequent blinking symptoms. Congenital glaucoma, entropion, corneal inflammation and injury, aniridia, albinism, intermittent exotropia, upward strabismus, and many other eye diseases can be photophobic stimuli. (5) Tearing and excessive eye discharge: there is discharge from the corner of the large eye or eyelid and non-stop tearing symptoms. There may be conjunctivitis, entropion, congenital nasolacrimal duct occlusion, and other diseases. (6) Red eyes: redness of the white eyeball symptoms. It can be due to conjunctivitis, keratitis, iridocyclitis, etc. (7) White pupil: The pupil area that was originally black shows white or yellow-white reflections, commonly known as “cat’s eye”. This may be due to retinoblastoma, retinopathy in immature children, congenital cataracts, and other eye diseases. (8) Abnormal lid fissures and eye size. Such as ptosis; small corneas; small eyeballs; iris defects; congenital glaucoma. Patients with congenital ptosis are unable to open their eyes for many days when they are first born.