Experiencing Flashing Lights After Running: When to Seek Eye Care?
Experiencing flashes of light in the eyes during rest after running? I would like to ask the doctor about my condition. I have myopia of approximately 800 degrees and have been undergoing regular fundus examinations, with the last one conducted at the end of October last year. Th...
Dr. He Jianxian Reply:
Hello Mr. K and Mr. H: Based on your description, it is difficult to determine the exact situation. However, if your vision returns within 30 seconds, it is likely not a serious issue. On the other hand, if your vision goes completely black for several seconds, similar to turning...[Read More] Experiencing Flashing Lights After Running: When to Seek Eye Care?
Understanding Eye Flashes: Should You Seek Further Evaluation?
Eye flickering Hello, Dr. Gao. I am the person who inquired about #207988. I went to the clinic yesterday for a dilated eye exam. The doctor said that my fundus, intraocular pressure, and macula are all normal, but did not explain what the persistent flickering sensation in my ey...
Dr. Gao Pilin Reply:
Hello: 1. Floaters and flashes: The phenomenon of floaters is usually caused by tiny particles in the vitreous gel casting shadows. Flashes may be related to vitreous detachment, but since the fundus examination appears normal, this could represent a new variation of floaters. 2....[Read More] Understanding Eye Flashes: Should You Seek Further Evaluation?
Understanding Yellow Flashes and Visual Disturbances in Eye Health
Waking up suddenly to see yellow flashes of light? Hello Doctor: I have floaters and have previously undergone laser surgery for retinal holes. I am nearsighted with a prescription of about -200 and astigmatism around -300. Recently, I have been experiencing a lot of issues. When...
Dr. He Jianxian Reply:
Dear Ms. Anonymous, 1. I cannot explain why your afterimage condition has worsened. 2. I cannot explain why you suddenly woke up to see a bright yellow light that then returned to normal; it may be due to pressure on the eyes, but clinically, it cannot be determined. 3. If you h...[Read More] Understanding Yellow Flashes and Visual Disturbances in Eye Health
Post-Retinal Detachment Surgery: Addressing Vision Distortion and Misalignment
After retinal detachment surgery, there is a distortion in the visual field and the images from both eyes cannot be fused? Hello! About a year ago, I underwent retinal detachment surgery on my right eye. Due to a strong inflammatory response because of my young age, the doctor me...
Dr. He Jianxian Reply:
Dear Mr. Hsu, The distortion or deformation of the visual field caused by retinal surgery or disease is indeed very challenging to address. The possibility of treatment and improvement varies from person to person, and it is essential to follow up with your surgeon for specific...[Read More] Post-Retinal Detachment Surgery: Addressing Vision Distortion and Misalignment
Understanding Astigmatism and Halo Effects in Night Vision
Astigmatism and aperture? Hello Doctor: In the past few months, I have been seeing halos and glare around streetlights at night, and even during the day, I notice this effect when looking at bright lights indoors. There are also rainbow-colored rings around lights. I have seen a ...
Dr. Gao Pilin Reply:
Hello: If you experience halos and glare when looking at streetlights at night or bright lights indoors during the day, along with nearby rainbow halos, this may be due to irregularities in the cornea or the surface of the eye. This phenomenon is typically associated with several...[Read More] Understanding Astigmatism and Halo Effects in Night Vision
Understanding Dark Shadows in One Eye: Possible Causes and Next Steps
The left eye feels darker, with a shadow in a specific area? In recent days, I have noticed an imbalance in the light perception between my two eyes. Upon comparison, I found that my left eye perceives light as darker, and there seems to be an irregular circular shadow in the cen...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, the uneven light perception in your left eye and the irregular circular shape resembling an afterimage from looking at a bright light may indicate an issue related to eye health. Floaters are typically caused by the liquefaction of the ...[Read More] Understanding Dark Shadows in One Eye: Possible Causes and Next Steps
Can Trimming Long Eyelashes Affect Eye Health? Expert Answers
About eyelashes? Hello, Dr. Gao: I would like to ask you a question. When I look up and to the right with my right eye, I occasionally see some dark shadows in my peripheral vision. I had a dilated fundus examination last month, and my eyes were found to be normal, so I believe t...
Dr. Gao Pilin Reply:
Hello: Q1. Trimming long eyelashes moderately is generally safe, but it requires careful handling to avoid injuring the eyes and the hair follicles. Use specialized eyelash scissors or eyebrow scissors to gently trim the eyelashes, avoiding excessive force or cutting them too sho...[Read More] Can Trimming Long Eyelashes Affect Eye Health? Expert Answers
Understanding Vitreous Degeneration: Symptoms, Causes, and Risks
Vitreous degeneration Hello, doctor. I am currently 18 years old. I have myopia of over 100 degrees in my left eye and over 300 degrees in my right eye. A few months ago, I noticed many transparent floaters in my vision, including round dots and thread-like shapes, and sometimes ...
Dr. Gao Pilin Reply:
Hello: 1. Yes, based on the symptoms you described, including the appearance of floaters and the results of the dilated fundus examination, this may be a manifestation of vitreous degeneration. The vitreous is the gel-like substance inside the eye, which may gradually degenerat...[Read More] Understanding Vitreous Degeneration: Symptoms, Causes, and Risks
Unexplained Glare: Seeking Answers for Persistent Eye Symptoms
Mysterious glare? I have been experiencing glare for the past six months. I have seen four doctors, but none have been able to identify the issue. I went to a large hospital for examinations, including corneal topography, dry eye tests, and a fundus examination, all of which show...
Dr. Cai Wenyuan Reply:
Monitor the situation, and if symptoms persist, seek medical evaluation.[Read More] Unexplained Glare: Seeking Answers for Persistent Eye Symptoms
Understanding Eye Discomfort After Dilation: What You Need to Know
Eye problems Doctor, I apologize. I just asked a question, but it seems to have been sent repeatedly, and I'm sorry for the inconvenience caused. (The question I asked earlier was about the dilated fundus examination.) After the dilation exam, my eye feels a bit painful and ...
Dr. Gao Pilin Reply:
Hello: No problem, I understand your situation. The discomfort you are experiencing in your eyes is typically a normal reaction following a dilated eye exam. This discomfort may be caused by the effects of the dilating drops or by the physician retracting your eyelids during the ...[Read More] Understanding Eye Discomfort After Dilation: What You Need to Know
Concerns After Eye Examination: Understanding Oscillopsia and Eye Safety
Eye Consultation Inquiry Dear Dr. He, Hello. Yesterday (March 22), I went to the ophthalmology department for a dilated fundus examination. During the instillation of the dilating drops, the nurse accidentally touched my right eyeball with a cotton swab (long cotton stick). Alth...
Dr. He Jianxian Reply:
Hello Mr. Kris: 1. If the cotton swab caused any injury, you would likely feel significant discomfort. Since you have not experienced any discomfort, it is unlikely that your eye has sustained any serious damage. 2 & 3. Generally, neither dilation nor a cotton swab injury ...[Read More] Concerns After Eye Examination: Understanding Oscillopsia and Eye Safety
Understanding Oscillopsia: Causes, Symptoms, and When to Seek Help
Regarding vibration-induced visual hallucinations? Dear Dr. Gao, Thank you very much for your responses to my questions over the past few days. I never expected that a simple fundus examination at the clinic could lead to so many issues (being poked in the eye with a cotton swab...
Dr. Gao Pilin Reply:
Hello: Q1. Generally speaking, transient and occasional visual disturbances such as visual vibrations can have multiple causes. These include visual fatigue, eye muscle strain, eye conditions such as strabismus, retinal issues, or central nervous system problems. These factors ...[Read More] Understanding Oscillopsia: Causes, Symptoms, and When to Seek Help
Understanding Eye Health: Common Concerns and Expert Answers
Please provide the content you would like me to translate into English? Dear Dr. Gao, Thank you very much for your response to my inquiry in the article "#206836". Your reassurance that a slight touch of the cotton swab on the sclera of my right eye should not cause an...
Dr. Gao Pilin Reply:
Hello: Q1. For the bump caused by meibomian gland obstruction, an initial treatment method can be warm compresses. Warm compresses help to soften the blockage in the meibomian glands, promoting drainage, and may sometimes reduce the bump. However, if there is no improvement aft...[Read More] Understanding Eye Health: Common Concerns and Expert Answers
Understanding Eye Care: Addressing Concerns After Pupil Dilation
Inquiry for clarification? Dear Dr. Gao, Thank you very much for your previous response to my questions; I have understood everything clearly. I apologize for bothering you again, but I have a sudden issue with my eye that has caused me some concern, so I am reaching out once mo...
Dr. Gao Pilin Reply:
Hello: Based on the situation you described, I would like to provide the following recommendations: Q1. It is unlikely to cause any harm. Q2. If the lower white part of the right eye (sclera) is poked or scratched, the following symptoms may occur: - Sharp pain or burning se...[Read More] Understanding Eye Care: Addressing Concerns After Pupil Dilation
Sudden Eye Darkness: Understanding Brief Vision Loss After Exercise
Blackout of vision for 0.1 seconds? About five days ago, after jogging for an hour, my vision suddenly went black for about 0.1 seconds, or rather, it seemed to darken. This happened three times within five minutes, but each time lasted only about 0.1 seconds. I'm not sure i...
Dr. Gao Pilin Reply:
Hello: Based on your description, you experienced a sudden blackout in your vision after jogging, accompanied by three brief episodes of darkness lasting about 0.1 seconds each. You have undergone examinations, including fundus examination and OCT scans. Additionally, you had a C...[Read More] Sudden Eye Darkness: Understanding Brief Vision Loss After Exercise
Essential Eye Exams for High Myopia: Addressing Retina Risks and Concerns
Eye examination for individuals with high myopia? Hello, Doctor Gao. I am a patient with high myopia (600-700 degrees). I undergo dilated fundus examinations every year, and both of my eyes have been found to have peripheral lattice degeneration, for which I have received laser t...
Dr. Gao Pilin Reply:
Hello: 1. Is having two fundus examinations each year sufficient to assess the condition of the macula? Generally, it is recommended for individuals with high myopia to undergo 1-2 fundus examinations annually. Fundus examination allows for the observation of the retina, macula...[Read More] Essential Eye Exams for High Myopia: Addressing Retina Risks and Concerns
Is It an Illusion or Floaters? Understanding Eye Symptoms
Is it an illusion or floaters? About a week ago, I seemed to see something flashing again, and sometimes I notice black spots in my field of vision (always at the periphery, not in the center), but they disappear in about 0.5 seconds. I later had a fundus examination and OCT, whi...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, I understand that you may have some visual issues, particularly in situations of stress or anxiety. Although you have already undergone a fundus examination and OCT scan, I recommend that you consult an ophthalmologist again, especially...[Read More] Is It an Illusion or Floaters? Understanding Eye Symptoms
Does Weight Training Increase Risk of Macular Issues in Myopic Patients?
Does strength training cause macular tears? Hello, Doctor Gao. I am a patient with high myopia, with both eyes around -1300 diopters. I have been undergoing fundus examinations every six months at the clinic. In 2018, the doctor noted white spots and thinning of the retina in my ...
Dr. Gao Pilin Reply:
Hello: 1) Retinal white spots and thinning are common complications of high myopia. Retinal white spots are caused by the atrophy or detachment of retinal pigment epithelial cells and usually do not affect vision. However, if retinal thinning is severe, it may lead to retinal tea...[Read More] Does Weight Training Increase Risk of Macular Issues in Myopic Patients?
Understanding Amsler Grid: Assessing Macular Health and Vision Changes
Amsler grid? Hello Doctor, last year I felt that my floaters had worsened, so I went to a clinic for a fundus examination and also underwent an Amsler grid test. At that time, there were no significant issues with my retina, and the doctor did not specifically mention any macular...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.[Read More] Understanding Amsler Grid: Assessing Macular Health and Vision Changes
Understanding Yellow Tint in Right Eye After Retina Laser Treatment
The right eye perceives light as yellowish? Hello Doctor: I just had retinal laser treatment on Wednesday night. I would like to ask if a dilated fundus examination can determine why one eye (the right eye) appears yellow?
Dr. He Jianxian Reply:
Hello Ms. Chi: It is possible to experience temporary changes in color perception after undergoing laser treatment or dilation examination, but it usually returns to normal within a few minutes and is unlikely to persist. Dr. He Jianxian, Ophthalmology Department, Nantou Hospital...[Read More] Understanding Yellow Tint in Right Eye After Retina Laser Treatment