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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
Can pseudomyopia cause astigmatism?
Pseudomyopia generally does not involve astigmatism. Pseudomyopia is caused by ciliary muscle spasm, while astigmatism is due to changes in the curvature of the cornea, or changes in the eyeball itself; these two are not the same. Pseudomyopia can be completely cured with proactive treatment, adequate rest, reducing close-up activities, avoiding eye fatigue, and using eye drops that alleviate ciliary muscle paralysis, such as low-concentration atropine eye drops and digoxin eye drops. If not treated actively, prolonged pseudomyopia can turn into true myopia. True myopia involves elongation of the eye axis, leading to blurred distance vision but clear near vision. Therefore, when this occurs, a proper dilated refraction test should be conducted. (Medication should be used under the guidance of a physician.)
Is floater related to wearing colored contact lenses?
Floaters are not related to wearing cosmetic contact lenses at all. Floaters are due to vitreous opacity, which can be categorized into physiological and pathological vitreous opacity. Physiological vitreous opacity generally does not affect vision, whereas pathological vitreous opacity significantly impacts vision and requires further examination by an ophthalmologist. Additionally, cosmetic contact lenses are worn on the cornea and mainly cause corneal damage, such as keratitis and conjunctivitis. Therefore, when wearing cosmetic contact lenses, one should handle them correctly, gently, and ensure the lenses are regularly cleaned and soaked as per guidelines.
Can you smoke during keratitis?
During the period of keratitis, it is best not to smoke. Although smoking does not directly affect the factors of corneal healing, it can indirectly affect the healing of keratitis. If keratitis is not actively treated, or if the condition progresses or is not well controlled, it can easily lead to corneal opacity, spots, and leukoplakia. Additionally, it can lead to the formation of corneal ulcers and corneal perforation, causing severe visual impairment and even leading to blindness. Therefore, keratitis can be either mild or severe, and it should not be ignored in treatment. Active treatment and regular check-ups generally lead to recovery.
Is vitreous opacity a precursor to glaucoma?
Vitreous opacities are not a precursor to glaucoma. Vitreous opacities can be divided into physiological and pathological types. Physiological vitreous opacities generally do not affect vision, and one may see variously shaped black shadows in front of the eyes. Pathological vitreous opacities can impact vision and should be further examined by an ophthalmologist. The precursors of glaucoma include eye pressure, eye pain, photophobia, tearing, relief after rest, and a decrease in vision, along with halos seen around lights. If these symptoms occur, active treatment should be sought. Glaucoma can be classified into primary, secondary, congenital, and mixed types.
How long is the general recovery period for keratitis?
The recovery time for blurry vision caused by keratitis can vary, as keratitis can range from mild to severe. Mild cases may recover within 3-5 days, but severe cases, if complications like corneal nebula, macula, leukoma, corneal ulcers, or corneal perforation occur, may lead to difficult or impossible vision recovery, or even blindness. Therefore, it is important to take keratitis seriously in treatment. Active and diligent treatment should not be neglected. Normally, do not apply heat, maintain a light diet, avoid spicy and irritating foods, use eye drops and ointments as prescribed, attend regular check-ups, and monitor vision status.
Can you swim after retinal detachment surgery with a lens implant?
Retinal detachment and having an implanted lens means you cannot swim, and if you wish to swim, it must be at least six months later. There are generally two types of surgeries for retinal detachment: vitrectomy with retinal repositioning, and scleral buckling. If a lens has been implanted, it means the natural lens was removed and replaced with an artificial lens. Therefore, after surgery, it is important to rest properly, maintain correct posture, attend timely follow-up appointments, monitor visual recovery and eye pressure, and use eye drops as prescribed.
Does strabismus require dilated refraction?
Strabismus also requires dilated refraction to investigate the causes and characteristics of refractive errors, which include myopia, hyperopia, astigmatism, and amblyopia. Additionally, it could be related to other eye conditions. Strabismus in adolescents is mostly caused by amblyopia and sometimes congenital issues. If strabismus is solely due to refractive errors, it can typically be corrected gradually through dilated refraction and proper eyeglass fitting. However, congenital strabismus generally requires surgical treatment. Therefore, it is quite necessary to perform dilated refraction again in cases of strabismus.
Is there a connection between floaters and kidney deficiency?
In Western medicine, floaters are not significantly related to kidney deficiency, and the concept of kidney deficiency in Chinese medicine is different from that in Western medicine. Therefore, the treatment for floaters primarily involves resting sufficiently, reducing close-up work to alleviate eye strain, using eyes correctly, and appropriately using some peptide iodine eye drops, which generally yield good results. If the floaters are pathological, it is necessary to visit an ophthalmology department for further examination, including an eye ultrasound, fundus photography, intraocular pressure, uncorrected visual acuity, and corrected visual acuity, to actively treat and monitor the development of the vision, aiming to restore normal vision.
Will staying up late worsen night blindness?
If night blindness is caused by congenital reasons, then staying up late generally does not significantly worsen it. If it is caused by acquired eye abnormalities, staying up late will noticeably exacerbate the occurrence of night blindness. Additionally, if it is caused by a deficiency in vitamin A, one should rest properly, reduce close-range activities, avoid staying up late, and supplement with foods or medications containing vitamin A. If the night blindness is due to eye-related causes, active treatment and regular follow-ups are recommended. If it is due to congenital reasons, currently there are no particularly effective treatments available.
Can slit lamp examination detect floaters?
Floaters generally do not require examination with a slit lamp microscope; they are examined using A-scan or B-scan ultrasonography to assess the extent of vitreous opacity, posterior vitreous detachment, and the status of the vitreous in relation to the retina. Floaters are also known as vitreous opacities and can be categorized into physiological and pathological vitreous opacities. Physiological vitreous opacities generally do not affect vision but appear as some floating objects in front of the eye, which do not change vision. These are more visible in bright light and less visible or absent in low light. If the vitreous opacity is pathological, it can affect vision and requires further ophthalmologic examination and active treatment.