Understanding Fixed Black Spots in Vision: Possible Causes and Next Steps
There is a small dark shadow in the line of sight of the right eye, and its position is fixed? Hello Doctor, last Thursday (5/7), I noticed an abnormality in my right eye while looking at my phone. When reading, some words appear blurry or have missing parts, and I experience a h...
Dr. Gao Pilin Reply:
Hello Eric: Based on your description, it seems more like posterior vitreous detachment, which can produce a ring-like shadow known as a Weiss ring. This ring is formed at the location where the vitreous separates from the optic nerve, so it appears relatively fixed in your visio...[Read More] Understanding Fixed Black Spots in Vision: Possible Causes and Next Steps
Protecting Vision: Safe Lighting and Exercise for Retinal Disease Patients
Regarding the issues of movement in patients with retinal diseases in darkroom lighting conditions? Dear Doctor, I would like to inquire about the current situation regarding light sources in dark rooms and exercise issues for patients with retinal diseases. I have high myopia o...
Dr. Cai Wenyuan Reply:
Severe myopia is recommended to have regular medical check-ups.[Read More] Protecting Vision: Safe Lighting and Exercise for Retinal Disease Patients
Protecting Your Eyes: Light Sources and Exercise for Retina Health
Light Source and Motion Problems Dear Doctor, I would like to inquire about the current situation regarding light sources in dark rooms and exercise issues for patients with retinal diseases. I have high myopia of -9.00 diopters in one eye and have undergone laser treatment to p...
Dr. Gao Pilin Reply:
Hello: 1. It should be possible, but it may lead to increased fatigue. 2. For standards of illuminance from light sources, you can refer to the link below: https://bit.ly/3dej33z. There is no defined threshold for excessive brightness; the principle is to avoid glare. 3. A signif...[Read More] Protecting Your Eyes: Light Sources and Exercise for Retina Health
Impact of Eye Conditions on Visual Field Testing Accuracy
Visual field examination Hello, Doctor: I would like to ask if during a visual field test, if one eye is covered and the covered eye can still perceive some light from the instruments through a tissue, will this affect the accuracy of the test? For the next test, would it be bett...
Dr. Gao Pilin Reply:
Hello Ms. P: Having tissue paper in place should not affect the results of the examination, as the visual field test is conducted for only one eye at a time. High myopia can inherently cause some changes in the optic nerve head, which can sometimes be difficult to differentiate f...[Read More] Impact of Eye Conditions on Visual Field Testing Accuracy
Understanding Eye Pressure: Expert Answers to Common Concerns
Follow-up inquiry #155163 regarding intraocular pressure issues? Dear Dr. Gao, Thank you very much for your detailed response to my inquiry regarding the intraocular pressure issue in "<a href='https://adoctor.tw/article/155163'>#155163 Eye Pressure Consulta...
Dr. Gao Pilin Reply:
Hello, Dr. Gao: 1. Regarding the eye drop "EYEHELP EYE DROPS 0.01% (containing neostigmine methylsulfate 0.1mg)," thank you for providing the medication information leaflet. I have understood its effects and side effects. May I ask if this eye drop contains "stero...[Read More] Understanding Eye Pressure: Expert Answers to Common Concerns
Understanding Elevated Eye Pressure: Questions and Insights for Patients
Consultation for intraocular pressure issues? Dear Dr. Gao, Hello, I am Ah Xiang, who previously asked you some questions. I sincerely appreciate your responses to my inquiries. Following your advice, I visited an ophthalmology clinic yesterday for a dilated fundus examination. ...
Dr. Gao Pilin Reply:
Hello, Ah-Xiang: 1. What part of the eye is primarily examined to determine if a person can use mydriatic agents? The size of the anterior chamber angle is assessed; if the angle is open, the use of mydriatic agents is less likely to cause an increase in intraocular pressure. 2...[Read More] Understanding Elevated Eye Pressure: Questions and Insights for Patients
Understanding Retinal Tears: Concerns, Symptoms, and Treatment Options
Follow-up on retinal traction issues? Hello Dr. Gao, I am the questioner Tong from #155019. I have a few more questions regarding retinal traction that I would like to ask you. Thank you. Regarding the previous questions: 1. Will retinal traction become more severe over time?...
Dr. Gao Pilin Reply:
Hello, 1. The pulling sensation is still present and slightly more than last time. This pulling is a normal phenomenon of vitreous degeneration and does not necessarily lead to retinal detachment; sometimes it is just a transitional phase. 5. Does vitreous degeneration always...[Read More] Understanding Retinal Tears: Concerns, Symptoms, and Treatment Options
Understanding Muscle Spasms and Visual Flashes: Eye Health Insights
Body convulsions and flashes in the visual field? Hello Doctor, I would like to ask the following two questions: 1. Muscle spasms and flashes in the eye: Three days ago, while lying in bed at night, I suddenly experienced a muscle spasm in my back, and at the same time, I saw a...
Dr. Gao Pilin Reply:
Hello Mr. Chen, 1. I have not encountered your specific symptoms in clinical practice, but the underlying cause may be somewhat similar to the phenomenon of light perception associated with migraines. However, it remains an unresolved mystery. You may refer to the following link...[Read More] Understanding Muscle Spasms and Visual Flashes: Eye Health Insights
Understanding Optic Nerve Abnormalities: Symptoms and Next Steps
Optic nerve abnormalities Hello Doctor: I have approximately -7.50 diopters of myopia in both eyes. Recently, when I close my eyes in a dark place and then open them, I see a black shadow in the center that lasts for 2 to 3 seconds before disappearing. When reading a line of text...
Dr. Gao Pilin Reply:
Hello Mr. Li: There may not be an urgent need for a visual nerve examination, but it would be advisable to first consult a neurologist regarding your hand tremors, as they could potentially be related to an eye issue. The ophthalmology department at Puzi Hospital in Taiwan is ava...[Read More] Understanding Optic Nerve Abnormalities: Symptoms and Next Steps
Understanding Eye Symptoms: Is Persistent White Light Normal or Concerning?
Follow-up question #154854 Eye problem consultation Dear Dr. Gao, Thank you very much for your responses to my previous two inquiries; I sincerely appreciate it. In the article titled "<a href='https://adoctor.tw/article/154854'>#154854 Eye Problem Consultat...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: Whether it's stars or white light, both are phenomena where the retina and optic nerve transmit neural impulses to the visual center of the brain, resulting in different visual images; these are physiological phenomena. At the E-Hospital in Puzi, Taiwan, th...[Read More] Understanding Eye Symptoms: Is Persistent White Light Normal or Concerning?
Understanding Eye Symptoms: Sneezing Effects and Retinal Concerns
Eye Problem Consultation Dear Dr. Gao, I have two questions to ask: 1. Occasionally, after sneezing, I experience a flickering sensation in my vision (seeing stars). However, on two occasions, after sneezing, I experienced a complete whiteout that obscured my vision, which retu...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: 1. Pressure on the retinal optic nerve is the main cause of seeing "stars." Many physiological activities, including forceful coughing, sneezing, straining during bowel movements, and holding one's breath, can lead to increased intracranial press...[Read More] Understanding Eye Symptoms: Sneezing Effects and Retinal Concerns
Seeing Floating Light Spots in Darkness: Eye Health Concerns Explained
Seeing small points of light in the dark? Hello, doctor. Recently, I have noticed some small floating light spots in the dark, somewhat similar to floaters, which disappear after a few seconds without any flashes. I have myopia of -6.25 diopters in my right eye and -5.25 diopters...
Dr. Gao Pilin Reply:
Hello, Student Zhang: The dilated eye examination showed no issues, and it may simply be a case of floaters, which is not a major concern. You can monitor it yourself and have regular check-ups. Regarding intraocular pressure, if it is slightly elevated, it would be advisable to ...[Read More] Seeing Floating Light Spots in Darkness: Eye Health Concerns Explained
Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Glaucoma-related 1. Can OCT directly show optic nerve atrophy, or does it only indicate the size of the optic disc? Does high myopia affect the interpretation? 2. If the OCT values are abnormal but the visual field test is normal, can it still be classified as glaucoma? (The pa...
Dr. He Jianxian Reply:
Hello Ms. Ching: 1. OCT (Optical Coherence Tomography) is used to collect population data to establish a database for comparative analysis. However, due to individual variations, there can be significant differences, especially in cases of high myopia where the optic nerve head...[Read More] Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Recent Advances in Optic Nerve Stem Cell Research: Success Stories
Optic nerve-related I would like to ask if there have been any successful cases in the research of optic nerve stem cells? (I saw some news about it before, but I'm not sure about the accuracy of the news.)
Dr. He Jianxian Reply:
Hello Kathy: The successful cases we have seen before are all from abroad, and there seems to be no clear treatment model available for reference in Taiwan. Dr. He Jianxian, Ophthalmologist, Nantou Hospital.[Read More] Recent Advances in Optic Nerve Stem Cell Research: Success Stories
Can Early Detection of Glaucoma Prevent Vision Loss for Life?
Eye-related I would like to inquire if early detection of glaucoma can allow for lifelong control, meaning that vision loss can be prevented.
Dr. He Jianxian Reply:
In an ideal situation, with the help of medication or surgery to control intraocular pressure, the optic nerve theoretically should not undergo degeneration. However, in clinical practice, there are indeed patients whose intraocular pressure is well-controlled, yet their conditio...[Read More] Can Early Detection of Glaucoma Prevent Vision Loss for Life?
Understanding Glaucoma: Symptoms, Diagnosis, and Eye Health Concerns
About glaucoma? I found some information about glaucoma online and became worried that I might have it. Previously, I noticed rainbow halos around lights at night. After visiting an ophthalmologist, my intraocular pressure was measured and found to be within the normal range. The...
Dr. He Jianxian Reply:
1. An indirect ophthalmoscope can visualize the retina and the optic nerve. 2. The description of glaucoma you mentioned refers to the halo phenomenon seen in acute angle-closure glaucoma with corneal edema. With your -6.00 diopter myopia, it is highly unlikely for you to exper...[Read More] Understanding Glaucoma: Symptoms, Diagnosis, and Eye Health Concerns
Understanding Eye Flickering: Questions About Vision and Health
A broken light bulb? Flickering eyes? Dear Doctor, Thank you very much for your prompt response; your explanation has reassured me significantly. However, I still have some questions I would like to ask. 1. Can I continue with my regular work (mainly reading publications or us...
Dr. Gao Pilin Reply:
Hello Andrew: 1. Can I continue my regular work (mainly reading publications or using the computer and writing with pen and paper) or daily activities? Yes, there is no problem. 2. If I choose to ignore such phenomena (like flickering or flashes), will my vision be adversely ...[Read More] Understanding Eye Flickering: Questions About Vision and Health
Flickering Vision: Understanding Eye Symptoms in High Myopia
A broken light bulb? Flickering eyes? Hello Doctor, I am a patient with high myopia, and I recently completed a fundus examination (optical coherence tomography + fundus examination) a few days ago. I would like to ask: Recently, my eyes have been experiencing a phenomenon simil...
Dr. Gao Pilin Reply:
Hello Andrew: The appearance of such flashes is usually due to the retina being pulled by the vitreous, causing it to discharge. If this is the case, the main concern is the risk of a retinal tear. If examinations have shown no issues, you can wait for a while; once the vitreous ...[Read More] Flickering Vision: Understanding Eye Symptoms in High Myopia
Understanding High Eye Pressure and Eye Discomfort: Key Insights
Elevated intraocular pressure and eye discomfort? Hello Doctor, on January 16th, I visited an ophthalmology clinic due to swelling and pain in my left eye (the symptoms had been present for about 3-4 days, but it wasn't a constant discomfort; it would occasionally occur a fe...
Dr. Gao Pilin Reply:
Hello Mr. Chen, 1. The doctor prescribed eye drops to lower intraocular pressure (IOP). If the drops are discontinued, can the IOP remain normal? I have been using the drops until the day of my follow-up appointment, and I'm concerned that the drops are the reason my IOP re...[Read More] Understanding High Eye Pressure and Eye Discomfort: Key Insights
Understanding Eye Symptoms After Trauma: When to Seek Help
Inquiry about Eye Abnormalities Hello, doctor. Over the past two years, I have developed floaters and mild optic nerve atrophy. However, after examinations at the hospital, the doctors were not concerned about my condition, and I have been managing the number of floaters quite we...
Dr. Gao Pilin Reply:
Hello Henry: These symptoms may also be a form of floaters, possibly triggered by the car accident. If they occur occasionally, there should be no major concern. Individuals with high myopia should have regular eye examinations, and if there are no significant changes, you can wa...[Read More] Understanding Eye Symptoms After Trauma: When to Seek Help