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Li Zhen Dong
Ophthalmology
About me
Li Zhendong, male, graduated from Chengde Medical College, engaged in this profession for over 30 years, deputy chief physician, discipline leader, member of the Ophthalmology Association of the Medical Association, has participated in numerous domestic and provincial ophthalmology academic conferences. Also involved in teaching at the hospital.
He is conscientious and responsible in his ophthalmic work, pays attention to improving his professional qualities and abilities, keeps up to date with new developments in international and domestic ophthalmology, has a solid foundation of theoretical knowledge, is familiar with ophthalmic diagnostic, treatment, and surgical methods, specializing in ophthalmic microsurgery, especially cataract and eye trauma.
In clinical practice, he is bold yet meticulous, good at critical thinking and innovation. In recent years, he has introduced and performed cataract removal surgery with implantation of artificial lenses, restoring sight to many patients. He has accumulated rich clinical experience in the diagnosis and treatment of pediatric refractive errors, eye trauma, and coal mine eye injuries, showing unique skills in surgical treatment.
He has published over 20 papers in international, domestic, provincial, and municipal journals. Among them, the papers on "Diagnosis and Treatment of Coal Mine Eye Injuries" and "Clinical Diagnosis and Treatment of Pediatric Eye Injuries" were presented and published at international ophthalmology conferences, earning praise from peers. He has received multiple awards in science and technology.
Proficient in diseases
Diagnosis and treatment of common eye diseases, prevalent diseases, and challenging diseases.
Voices
The difference between transparent and black flying mosquito disease
Floaters appear before the eyes as either transparent or opaque, black objects—it's a matter of severity, generally not affecting vision. Floaters can be classified as physiological or pathological. Physiological floaters generally require only rest, reducing close-up tasks, and avoiding eye fatigue. Treatments can include using Ametiodine eye drops and Sodium Hyaluronate eye drops. If the floaters are pathological, one should visit an ophthalmologist for examinations such as an ultrasound (B-scan), intraocular pressure test, uncorrected visual acuity, corrected visual acuity, and fundus photography. Active treatment and regular follow-ups should be pursued, with close attention to vision changes. (Please use medication under medical supervision.)
Can eye fatigue lead to nearsightedness?
Myopia is characterized by clear vision up close but blurry vision at a distance, primarily caused by changes in the eye's axial length. Several factors contribute to the development of myopia: first, hereditary factors; second, inappropriate use of eyes, such as prolonged usage leading to eye fatigue, which can worsen the degree of myopia. Typically, the development of myopia occurs under the age of 20. After 20, there shouldn't be further development; if there is, it is referred to as pathological myopia. Therefore, it is important for patients with myopia or eye fatigue to use their eyes correctly, reduce close-up activities to avoid eye strain, and have regular check-ups to monitor their vision.
Severe cases of floaters can lead to what outcomes?
Floaters, also known as vitreous opacities, can be divided into physiological and pathological types. Physiological vitreous opacities, even if severe, do not affect vision, but simply result in a higher number of floating objects seen in the field of vision. Pathological vitreous opacities, on the other hand, can significantly decrease vision and may even lead to blindness. Therefore, during an examination, it is important to first check the uncorrected visual acuity, corrected visual acuity, intraocular pressure, ocular B-ultrasound, and fundus photography. If there are any underlying eye conditions, they should be actively treated to potentially restore vision as soon as possible. It is also advisable to ensure adequate rest, reduce close-up activities, and maintain a light diet.
Can teenagers get floaters?
Floater syndrome can also occur in adolescents. Floater syndrome is also known as vitreous haze. Mild vitreous haze does not affect vision, but it is more noticeable under bright light. The shapes vary, and they seem to fly in front of the eyes, typically not visible in darker environments, which means they are hard to see at night. In such cases, it is important to rest properly and use one's eyes correctly. If there is any refractive error, it should be correctly addressed with appropriate glasses. If conditions like myopia, hypermetropia, or astigmatism are not actively treated, they can lead to varying degrees of amblyopia or strabismus, thus they should be taken seriously.
How to distinguish between viral conjunctivitis and allergic conjunctivitis?
Allergic conjunctivitis mainly presents with itching and conjunctival edema, generally without obvious secretions. Viral conjunctivitis usually has watery secretions and lacks significant itching. In terms of treatment, viral conjunctivitis is primarily treated with antiviral medications, such as aciclovir eye drops and ganciclovir eye drops. The treatment for allergic conjunctivitis mainly involves steroid eye drops and non-steroidal eye drops, and also requires the use of anti-inflammatory eye drops. Neither type of conjunctivitis should be treated with warm compresses. For allergic conjunctivitis, it is also important to avoid allergens, while for viral conjunctivitis, it is crucial to be aware of any visual impairments. (Note: The use of medications should be carried out under the guidance of a professional doctor.)
For floaters, should you use hot or cold compresses?
Floater, also known as vitreous opacity, generally does not require hot compresses, nor does it require cold or ice compresses. If floaters do not affect vision, it is called physiological floater; if they affect vision, it is called pathological floater. Once floaters occur, active examination and serious treatment should be carried out. If it is physiological floaters, it is important to rest, reduce close-range operations, avoid eye fatigue, and some dextranomer eye drops and lecithin complex iodine tablets can be used orally, which generally can improve after treatment; if it is pathological vitreous opacity, a detailed examination at an ophthalmology outpatient clinic should be sought for active treatment. (If medication is needed, please proceed under the guidance of a doctor)
Is floaters related to the liver?
Floater syndrome is generally not associated with the liver, but Traditional Chinese Medicine theory believes it is related to the liver. The liver in Traditional Chinese Medicine is not the physical liver in our body, but rather a theoretical concept. Floater syndrome can generally be divided into physiological floaters and pathological floaters, also known as vitreous opacity. Physiological vitreous opacity generally does not require special treatment; it is sufficient to rest, use eye drops regularly, such as Amiodone eye drops, or conduct regular check-ups. If it is pathological vitreous opacity, one should visit an ophthalmology clinic for an eye ultrasound and a fundus photography examination to receive active treatment.
How to deal with vomiting in glaucoma?
Nausea and vomiting caused by glaucoma should be actively treated with pressure reduction. Antihypertensive eye drops include Timolol eye drops, Brinzolamide eye drops, and Pilocarpine eye drops. If the effect is not satisfactory, oral administration can also be considered. Common oral medications include Acetazolamide, and systemic use of Mannitol. If necessary, anterior chamber paracentesis can be performed. This series of active treatments can completely control intraocular pressure and relieve symptoms. Eye symptoms mainly include redness, swelling, pain, foreign body sensation, burning sensation, vision decline, headache, nausea, and vomiting. (Please follow the doctor's orders when using medication.)
Why can't true myopia be reversed?
True myopia is mainly characterized by the elongation of the eyeball, and the current medical level cannot solve the problem of eyeball elongation. Therefore, its nature cannot be changed, which means it cannot be reversed. Present treatment methods can only alleviate the symptoms of blurred vision when viewing distant objects in myopic patients, but cannot resolve the fundamental nature of myopia. Current treatment options include prescription glasses, orthokeratology lenses, contact lenses, and surgical treatments. Surgical options include corneal laser surgery and ICL (implantable collamer lens) surgery. After the onset of myopia, it is important to rest and use the eyes correctly to prevent further progression of the condition.
Is 1000-degree acquired myopia hereditary?
High myopia of 1000 degrees can also be inherited. The inheritance of myopia is mainly significant in cases of high myopia. If both parents have high myopia, the heritability is almost above 90%. If one parent has high myopia, the heritability is 45%. If neither parent is myopic, the heritability is nearly 5%. Myopia is primarily formed due to improper use of eyes rather than hereditary factors, which are relatively rare and generally only account for about 10% of myopia cases. Therefore, correct use of eyes is very important.