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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
Cataract ou, od, os means what?
OU, OD, and OS are common descriptions in ophthalmology. OU represents both eyes, OD represents the right eye, and OS represents the left eye. These are abbreviations. For example, visual acuity for both eyes is denoted as OU, visual acuity for the left eye as OS, and visual acuity for the right eye as OD. These terms are typically used in medical records, not only to describe conditions like cataracts. For instance, the condition of cataracts in both eyes would be described as OU: OD 0.1, OS 0.3.
Should the degree of myopia sunglasses be the same as the degree of myopia?
If you want to customize sunglasses or photochromic glasses with a prescription, the prescription should be exactly the same as that used for regular prescription glasses. The main purpose of these glasses is to protect the eyes from direct exposure to light, which can lead to excessive eye strain and cause symptoms like eye fatigue, pain, bulging, soreness, or the sensation of a foreign body in the eye. Typically, it is acceptable to use such glasses for prescriptions up to 500 degrees. However, it is generally not advisable for patients with high myopia, as these glasses do not provide clear vision.
Will the surgery for trichiasis recur?
Entropion is treated surgically by removing a part of the eyelid skin to correct the entropion and prevent the eyelashes from irritating the conjunctiva or the cornea. The surgical outcomes for this condition are generally good. Over time, as eyelids may become more lax, entropion can recur. However, this is not considered a recurrence but rather a progression of the condition. Following these occurrences, the primary focus should be on maintaining good eye hygiene, proper eye usage, avoiding staying up late, consuming a bland diet, and avoiding spicy and irritating foods. Regular follow-ups are recommended, along with consuming fruits and vegetables that are high in vitamins E, A, and C.
If trichiasis is not treated for a long time, what are the consequences?
If trichiasis is not actively treated, or is left untreated for a long period of time, it can lead to inflammation of the conjunctiva. If the cornea becomes inflamed, it can severely affect vision. The occurrence of keratitis can lead to the formation of corneal ulcers and corneal perforation, which can result in blindness. Furthermore, even if the keratitis heals, it can cause varying degrees of corneal opacities such as nebula, macula, and leucoma, which also severely affect vision. Another issue is the growth of new blood vessels on the cornea, which decreases corneal transparency and affects vision. Thus, although trichiasis may seem a minor issue, the consequences of not treating it actively can be very severe.
Do a few inverted eyelashes need surgery?
If there are only a few inverted eyelashes, electrolysis of the eyelashes can be conducted. If there are many, surgical correction can be considered. The technology for surgical correction is currently quite mature, so there are generally not many problems. Inverted eyelashes must be treated. If left untreated, they can cause damage to the cornea. Damage to the cornea can lead to the growth of new blood vessels, resulting in a thin haze over the cornea, spots, and white patches, severely affecting vision. Although inverted eyelashes might seem like a minor issue, if not treated promptly, they can lead to serious complications. However, complete recovery is possible with treatment. It’s important to rest regularly, reduce close-up tasks, and use some corneal protective eye drops, such as sodium hyaluronate eye drops, and anti-inflammatory eye drops, such as levofloxacin eye drops. (Please use medication under the guidance of a doctor.)
Can inverted eyelashes be fixed with an eyelash curler?
In general, it is not advisable to pluck inverted eyelashes with tweezers, as the more you pluck, the thicker the inverted eyelashes become, making them more likely to injure the cornea and conjunctiva. This means the eyelashes become harder, creating a vicious cycle. If you have inverted eyelashes, it’s important to actively treat the condition: if there are few eyelashes, electrolysis can be done; if there are many, corrective surgery for inverted eyelashes is recommended and generally effective. During the period of dealing with inverted eyelashes, you should use anti-inflammatory eye drops and eye drops that protect the corneal epithelium, such as Levofloxacin eye drops and Sodium Hyaluronate eye drops. It's important to rest, avoid rubbing your eyes with dirty hands, maintain a light diet, avoid spicy and irritating foods, and monitor your vision.
Does nearsightedness surgery require an incision?
There are two types of myopia surgery. One is performed using lasers, and the other involves making a small incision on the edge of the cornea to implant an artificial lens into the eye. Corneal laser surgery uses a laser to create a concave mirror on the cornea to resolve the symptoms of blurry vision when looking at distant objects. The ICL surgery, which involves the implantation of an artificial lens, significantly improves the patient's vision after the procedure. Both types of myopia surgeries are currently quite advanced in terms of technology. Therefore, patients who wish to stop wearing glasses and have clear indications from pre-operative examinations can consider undergoing myopia surgery treatment.
What will happen if trichiasis is not treated?
If trichiasis is not treated and allowed to progress, it can cause damage to the conjunctiva and the cornea. Particularly, corneal damage can lead to keratitis and corneal neovascularization, severely affecting vision and the transparency of the cornea. During treatment, if scarring occurs, such as thin corneal opacities, plaques, or leukomas, it can severely affect vision, and even lead to blindness. Therefore, while trichiasis itself is not severe, not treating it can lead to serious consequences. Currently, the main treatments for trichiasis include electrolysis of the eyelashes and surgical treatment, along with the use of eye drops, which generally results in a quick recovery.
Can vision affected by trichiasis be restored?
If trichiasis affects vision, it indicates that the abrasion of the cornea by the eyelashes has reached a certain degree, and active treatment is necessary. The main goal of the treatment is to prevent the future formation of corneal haze, spotted haze, or leukoma, which can severely impact vision. With active treatment, these conditions generally do not develop, so although trichiasis is a minor condition, if not treated actively, it can lead to serious complications. The primary treatments for trichiasis involve the use of eye drops, such as levofloxacin eye drops and sodium hyaluronate eye drops. If the number of misdirected lashes is small, electrolysis of the eyelashes can be performed. If there are many, surgical treatment may be necessary to correct the inward turning of the eyelid. With active treatment, complete recovery is generally possible. (Please use medication under the guidance of a doctor.)
Does nearsightedness imaging fall in front of or behind the retina?
The image in a nearsighted eye forms in front of the retina, whereas in farsighted eyes, the image forms behind the retina. Nearsightedness means seeing clearly up close but blurry at a distance. When nearsighted, appropriate measures such as pupil dilation, optometric examination, and corrective lenses should be taken, or orthokeratology may be used. Once the degree stabilizes and no further progression occurs, surgical treatment can be considered after the age of 18. When the eye is unaccommodative, and parallel light rays enter, they focus in front of the retina. After these occurrences, with proactive treatment and proper rest, efforts should be made to prevent further increase in the degree. Especially in children, attention should also be paid to the development of strabismus and amblyopia.