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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
Is it normal to have one or two inverted eyelashes?
Having one or two eyelashes growing inwards is abnormal. Normally, eyelashes should not rub against the conjunctiva and cornea. If this occurs, do not pluck the eyelashes. Electrolysis surgery can be performed on the eyelashes, and after the surgery, the inturned lashes will not grow back, thus they will no longer affect the conjunctiva and cornea. If inflammation of the conjunctiva and cornea occurs, anti-inflammatory eye drops, such as levofloxacin, and sodium hyaluronate eye drops, which protect the corneal epithelium, can be used for effective treatment. Generally, these issues are not serious and do not affect vision. However, if vision is impacted, further examination and treatment should be sought from an ophthalmologist.
The difference between conjunctivitis and keratitis.
Eye membrane inflammation generally refers to the whites of the eyes, which is conjunctivitis, while corneal inflammation refers to the black part of the eyes. Both conjunctivitis and corneal inflammation should be actively treated. The symptoms of conjunctivitis include red eyes, swelling, pain, tearing, photophobia, increased secretion, foreign body sensation, and burning sensation, generally not affecting vision. In addition to the above symptoms, corneal inflammation has more pronounced symptoms of corneal irritation, such as increased sensitivity to light and more severe tearing. If corneal inflammation is not actively treated, it may later lead to thinning of the cornea, spots, and opacities, severely affecting vision. If not treated properly, corneal ulcers can perforate, leading to complete loss of vision, or blindness.
Can trichiasis be noticeable?
Trichiasis can be clearly seen with the naked eye; it causes friction on the conjunctiva, either on the sclera or the cornea, leading to damage to the corneal epithelium. This can result in keratitis, corneal neovascularization, and if not treated promptly, it can lead to further pathological changes in the cornea such as thinning, leukoma, and speckled opacities, severely impacting vision. Simple cases of minimal trichiasis can be treated with electrolysis, but more severe cases should be surgically treated. Complete recovery is possible after surgical treatment for trichiasis.
Does removing inverted eyelashes have any impact on the eyes?
After removing the misdirected eyelashes, it generally does not significantly affect the eyes. However, if they regrow after being plucked, they tend to be harder than before. Repeated plucking can cause inflammation of the eyelid and conjunctiva, long-term abrasion of the cornea, and may lead to the formation of new blood vessels in the cornea. Sometimes, it can also lead to corneal vascularization. Therefore, plucking is not advised. If there are only a few eyelashes, electrolysis can be performed; if there are many, surgical correction is possible, and generally, the results of the surgery are quite good. In such cases, it is advisable to use anti-inflammatory eye drops and eye drops that protect the corneal epithelium, such as levofloxacin and sodium hyaluronate eye drops. (Please consult a doctor before using any medication.)
The difference between nearsightedness and farsightedness.
Myopia is characterized by clear vision up close and blurred vision at a distance; hyperopia is characterized by clear vision at a distance and blurred vision up close. The main difference between myopia and hyperopia is the issue with the eye’s axial length. In an unaccommodated state, when parallel light rays enter the eye and focus in front of the retina, it is called myopia; when they focus behind the retina, it is called hyperopia. Myopic glasses are concave lenses, while hyperopic glasses are convex lenses. When myopia or hyperopia occurs, it is important to rest, reduce close-up activities, avoid eye fatigue, use eyes properly, eat a light diet, adjust your attitude, have regular check-ups, and pay attention to vision health.
Are the floaters in floater eye disease always black?
Floaters generally appear as black, fixed, variously shaped materials floating in front of the eyes, and are more visible in bright light than in dim light. This condition is called physiological vitreous opacity. If the color turns red or brown, it should be considered as vitreous hemorrhage or retinal pathology, and a further eye examination at an ophthalmology department is recommended. This usually indicates pathological vitreous opacity, which can severely affect vision. For physiological vitreous opacities, it is important to rest, reduce close-up activities, and appropriately use some Ametin iodide eye drops. Treatment can generally lead to improvement.
Trachoma is what type of infectious disease
Trachoma is classified as a Class C infectious disease by national regulations. Trachoma generally manifests as red eyes, swollen eyes, eye pain, increased secretions, and a foreign body sensation, sometimes affecting vision. The conjunctiva in trachoma shows significant proliferative follicles, or pavement stone-like changes. The transmission of trachoma is mainly through contact. Additionally, it is categorized as a Type C infectious disease, with infectious diseases classified into three major categories: Type A, Type B, and Type C. After contracting trachoma, it is crucial to actively treat it with eye drops and to pay attention to eye hygiene.
Is it effective to use glasses for floaters?
Floater syndrome generally does not require glasses, and wearing glasses has no effect. Although floater syndrome involves the refractive media, it does not cause changes in vision. Changes in vision are mainly due to the curvature of the cornea, the condition of the lens, the length of the eye axis, and retinal diseases. Floater syndrome can be physiological or pathological. Physiological floaters generally do not affect vision; simply taking rest, reducing close-up tasks, or using some peptide eye drops can completely improve the condition. If it is pathological floater syndrome, one should visit the ophthalmology department for further examination and active treatment.
Keratitis can be divided into several stages according to pathological changes.
Keratitis can be divided into four stages according to pathological changes: the infiltration stage, the ulceration stage, the ulcer recession stage, and the healing stage. The condition of the cornea differs at each stage, and treatment must be administered accordingly. Treatments include anti-inflammatory eye drops, antiviral eye drops, and eye ointment therapy. When necessary, treatment can involve the use of a corneal bandage contact lens. If it reaches the healing stage, such as when scars form in the anterior elastic layer and the stromal layer, resulting in corneal opacity, nebula, and leukoma, this can affect vision and regular follow-ups may be required.
Can people with trichiasis wear contact lenses?
Patients with trichiasis often experience inflammation of the conjunctiva and the cornea, therefore, they cannot wear contact lenses. Once trichiasis occurs, it should be actively treated, especially targeting the trichiasis itself. If it is just a few eyelashes that are inverted, electrolysis of the eyelashes can be performed. If there are many eyelashes inverted, then surgical treatment should be considered. Once the condition stabilizes, contact lenses can be worn. However, since trichiasis affects corneal lesions, a corneal bandage lens can be worn to protect the cornea. Active treatment with eye drops and eye ointments is recommended, and hot compresses should be avoided.