There are many types of eye diseases and their severity varies. Certain eye diseases will be fine if left untreated for a few years or even decades, while some eye diseases are not to be treated in a sloppy manner, and even the treatment time is a matter of seconds. Only grasp the timing of the treatment of eye diseases, in order to achieve good results. The following principles for reference: 1, the need for urgent medical treatment: the faster the better the treatment of these eye diseases, and even to “every second counts”. Mainly include: eye chemical burns, acute closed angle glaucoma, eye trauma (eye surface, intraocular foreign body, eye penetrating injury, eye surface trauma, orbital fracture, etc.). 2.It is necessary to seek medical treatment as soon as possible: blurred vision, diplopia, eye pain, eye redness, tearing, persistent eye discomfort (itching, foreign body sensation, dryness, and excessive secretion), etc. Seeking medical treatment as soon as possible can help to discover the cause of eye abnormalities so as to avoid delayed treatment. (1) Birth to 3 months: premature babies or babies with “cat’s eyes”, “bull’s eyes”, or tearing eyes should seek medical attention as early as possible after birth to rule out tumors, congenital cataracts, congenital glaucoma, congenital microphthalmia, congenital dacryocystitis, congenital dacryocystitis, congenital eyeballs, or congenital eyeballs, or congenital eyeballs. congenital dacryocystitis, congenital primary nystagmus and other congenital anomalies. (2) 3 months to 1 year old: Those who are found to have squinting eyes and drooping eyelids should be consulted to clarify strabismus, congenital ptosis and other diseases. (3) 1 year to 3 years old: Ask your doctor to do a simple eye and vision examination. (4) 3 to 6 years old: A detailed eye and vision examination can be done. Children’s vision is not fully developed until the age of 5-8 years. Therefore, the exercise of children’s visual function and the treatment of eye diseases affecting vision must be carried out before the age of 6-7 years, otherwise the effect will be very poor or even ineffective. (5) During the student period (6 to 25 years old): vision checkups are done every six months. During this period, the focus is on developing good eye habits, preventing myopia, and preventing eye trauma. Timely checkups will help you understand the changes in your vision and prevent or slow down the onset of myopia. (6) 25 to 45 years old: Measure visual acuity and check the fundus of the eye every year. Refractive problems are not very prominent during this period, and the refraction is more stable. However, due to work pressure, symptoms such as visual fatigue and eye dryness are likely to occur, especially around the age of 40, when eye regulation disorder occurs due to age, and obvious discomfort and difficulty in working at a close distance will occur, which requires timely guidance and treatment from the doctor. (7) Over 45 years of age: Check intraocular pressure and fundus every six months. From this period onwards, age-related diseases such as senile cataract and macular degeneration, and diseases related to systemic diseases such as hypertensive fundus changes, diabetic fundus changes, and arteriosclerosis of the fundus will become more and more prominent, and should therefore be seen on time and treated promptly.