Understanding Visual Afterimages: Causes and Concerns in Low Light
Afterimages (light spots) that can only be seen when blinking in the dark or in low-light conditions? Hello Doctor, about five days ago, I noticed that when I blink in the dark, I see a small square-shaped afterimage as if I were exposed to bright light. The faster I blink, the m...
Dr. He Jianxian Reply:
Hello Ms. Anonymous: I have not encountered this situation in clinical practice, so I am unable to address your question. If you continue to experience discomfort, I recommend consulting with your attending physician. Dr. He Jianxian, Ophthalmology Department, Nantou Hospital.[Read More] Understanding Visual Afterimages: Causes and Concerns in Low Light
Understanding Nighttime Eye Flashes: Causes and Concerns
Flashes of light at one or two in the morning? One night, around one or two in the morning, I experienced flashes that resembled television static. I do not have a history of floaters, and the duration was about two minutes. After that, it did not occur again. I went to an ophtha...
Dr. He Jianxian Reply:
Dear Mr. Min: Based on your description, it is difficult to determine the exact situation. However, if the retinal examination is normal, there is no need to worry too much. If you continue to experience discomfort, it is advisable to return for a follow-up appointment. Dr. He Ji...[Read More] Understanding Nighttime Eye Flashes: Causes and Concerns
Understanding Flashing Lights: Eye Fatigue vs. Vitreous Degeneration
Vitreous floaters and flashes? I have floaters and underwent a retinal examination, which showed no issues. Recently, I've been experiencing flashes of light that last for about 1 to 2 seconds and are not persistent. Should I return for a follow-up? How can I differentiate b...
Dr. Gao Pilin Reply:
Hello, Kk: Eye fatigue does not typically cause flashes of light. If it persists, it should be examined. The Ophthalmology Department at Puzi Hospital in Taiwan is open on Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM, and on Wednesday afternoons from 2:...[Read More] Understanding Flashing Lights: Eye Fatigue vs. Vitreous Degeneration
Should You Worry About Eye Floaters? Understanding Retinal Concerns
Doctor: Is this situation serious? Could there be an issue with the retina? How should I interpret this phenomenon? Will it resolve on its own? A month ago, I noticed a shadow passing in my left eye. I underwent an eye examination, and there was no retinal detachment; I just need...
Dr. Cai Wenyuan Reply:
Regular check-ups are sufficient; there's no need to worry.[Read More] Should You Worry About Eye Floaters? Understanding Retinal Concerns
Post-Retinal Hole Surgery: Understanding Vision Changes and Concerns
Postoperative Issues After Retinal Hole Repair Surgery Hello, doctor. I suddenly noticed an increase in floaters and blurred vision. Five days ago, I underwent retinal laser surgery on my right eye, where a hole had been lifted. Currently, the floaters have not increased, and I d...
Dr. Gao Pilin Reply:
Hello Kelly: Based on your description, since your vision returned to normal after 15 minutes, there is no need to worry. After undergoing retinal laser treatment, it can cause minor peripheral vision defects and temporary swelling, which may lead to a feeling of dimness, reduced...[Read More] Post-Retinal Hole Surgery: Understanding Vision Changes and Concerns
Understanding Floaters and Flashing Lights: When to Seek Help
Floaters are particularly dark? Hello, doctor. I would like to ask a few questions: 1. Regarding floaters, although I have been regularly visiting an ophthalmologist and have had a retinal tear that was treated with laser repair, I notice that the floaters I experience seem muc...
Dr. Gao Pilin Reply:
Hello: 1. Floaters can vary in size, shape, and color, and it is possible to have very large and deep floaters. 2. It may be due to the vitreous pulling on the retina, which can be more noticeable in dim lighting and may be obscured by light. At the Puzih Hospital Eye Clinic in T...[Read More] Understanding Floaters and Flashing Lights: When to Seek Help
Understanding Retinal Laser Treatment: Preventive Measures and Symptoms Explained
Retinal Laser Treatment 2 Hello, Doctor Gao. I would like to further inquire about educational information regarding retinal laser treatment. 1. As mentioned in the previous question, I do not quite understand why preventive laser treatment is necessary if there is a possibilit...
Dr. Gao Pilin Reply:
Hello: Laser treatment is applied to the surrounding area that may be at risk of rupture. If a rupture occurs in the center, having laser treatment around it can reduce the likelihood of retinal detachment. Therefore, once a rupture has occurred, it is important to assess whether...[Read More] Understanding Retinal Laser Treatment: Preventive Measures and Symptoms Explained
Understanding Retinal Laser Treatment: Risks and Floaters Explained
Retinal laser therapy Hello, Doctor. After my eye examination yesterday, it was found that there are thinner areas in my retina that require laser repair. I would like to ask: 1. Will this preventive repair cause any side effects to the retina? If that area does rupture, will I...
Dr. Gao Pilin Reply:
Hello: 1. Will this preventive repair cause any side effects to the retina? Will it only result in minor peripheral vision defects, or if that area truly ruptures, will it require another laser treatment? Yes, it may require further laser treatment if a rupture occurs. 2. The ...[Read More] Understanding Retinal Laser Treatment: Risks and Floaters Explained
Understanding Flashing Lights in Vision: Causes and Concerns
The eyes may perceive a brief flash of light? Yesterday, the ophthalmological examination, including fundus examination and optic nerve assessment, was normal. I have a history of floaters and panic disorder, which has recently recurred. I have noticed that in brighter lighting c...
Dr. Gao Pilin Reply:
Hello: If there are no issues found during the ophthalmic examination, you can feel reassured. If you are concerned about elevated intraocular pressure, it is necessary to measure it to know for sure. You may also consult a psychiatrist to determine if it is an anxiety issue. The...[Read More] Understanding Flashing Lights in Vision: Causes and Concerns
Understanding Eye Issues: Floaters and Nighttime Glare Explained
Please provide the specific eye problems you would like to inquire about? Hello Doctor, I recently had my eyes checked twice due to floaters, and the doctor confirmed that there are no issues and no tears. However, I still occasionally see floaters. I would like to ask about the ...
Dr. Gao Pilin Reply:
Hello Ray: The flashes you are experiencing should not be like reflected light, nor are they from above to below. It is related to your position and the direction of the pull, which may make you feel as if there is light flashing inside your eye, rather than seeing reflected ligh...[Read More] Understanding Eye Issues: Floaters and Nighttime Glare Explained
Understanding Eye Floaters: When to Worry About New Symptoms
There are light spots and shadows in the eyes? In the past month, I have occasionally noticed black spots and shadows that move with my line of sight. Each episode lasts only a few seconds and varies in intensity and shape. Sometimes, I see flashes of light in my right eye, which...
Dr. Gao Pilin Reply:
Hello CW: To determine the cause, an examination is necessary. Based on your description, it could be vitreous degeneration, commonly known as floaters. As for any other ocular conditions, I cannot diagnose without proper evaluation, so I recommend visiting an ophthalmologist for...[Read More] Understanding Eye Floaters: When to Worry About New Symptoms
Sudden Blackout in One Eye: Causes and Concerns Explained
Sudden onset of a black spot in one eye for a second? Hello doctor, I have floaters and a retinal tear in my left eye (which has been treated with laser). This morning, while standing up to use the bathroom, I suddenly felt a rush of blood to my head. When I opened my eyes, my le...
Dr. Gao Pilin Reply:
Hello, Xiao Liao: If it's only in one eye, it is likely not caused by blood pressure, but more similar to amaurosis. Please visit an ophthalmologist for an examination. The ophthalmology department at Puzi Hospital in Taiwan is open on Monday, Tuesday, Thursday, and Friday m...[Read More] Sudden Blackout in One Eye: Causes and Concerns Explained
Understanding Dry Eyes and Elevated Eye Pressure: Key Insights
Dry eye syndrome with elevated intraocular pressure? Currently, the doctor has diagnosed me with dry eye syndrome and elevated intraocular pressure (with a maximum reading of 25-26), and I also have floaters. The doctor has prescribed medication to lower my eye pressure, which I ...
Dr. Gao Pilin Reply:
Hello, Miss: Dry eyes do not cause an increase in intraocular pressure. An eye pressure reading of 20.21 indicates that you should continue using the prescribed eye drops; if you stop, it may exceed the normal range. Light sensitivity may be related to dry eyes. Using artificial ...[Read More] Understanding Dry Eyes and Elevated Eye Pressure: Key Insights
How to Prevent Retinal Tears: Expert Answers to Your Concerns
How can retinal tears be prevented? Dear Doctor, In September of this year, I discovered a hole in my retina, and the doctor immediately performed laser repair. However, I later noticed that sometimes there are moving light spots in my field of vision, especially when looking at...
Dr. Gao Pilin Reply:
Hello, Mr. Reddy: 1. During your last visit, the doctor mentioned that seeing flashes of light is due to something pulling inside the eye, which could potentially cause a retinal tear again. Generally, the risk is low, but you should monitor your symptoms. If you notice a signif...[Read More] How to Prevent Retinal Tears: Expert Answers to Your Concerns
Understanding Right Eye Pain: Causes and Self-Care Tips
Right eye pain? Hello, doctor. I have the following concerns: 1. My right eye has a prescription of -700 diopters and I experience floaters. For the past four days, I have been experiencing pain in my right eye and orbit, which is more intense when I look towards the 3 o'c...
Dr. He Jianxian Reply:
Dear elderly lady: Based on your description, it is difficult to determine the cause of your pain. Regarding the visual field loss, I recommend that you visit a large hospital for further examination. As for the phenomenon of visual persistence when closing your eyes, it likely d...[Read More] Understanding Right Eye Pain: Causes and Self-Care Tips
Understanding Vitreous Degeneration: Causes and Symptoms Explained
Vitreous degeneration Hello Doctor, I have myopia in both eyes, each at -400, and I see countless white dots floating around. When I focus on an object, I also feel like there are black shadows moving in both eyes. I would like to ask why my degeneration is progressing so quickly...
Dr. Gao Pilin Reply:
Hello, Xiao Lin: Based on your description, the situation resembles floaters rather than snow vision. In recent years, the age of onset for floaters has decreased significantly, and myopic individuals may experience them earlier, which is why floaters are also commonly reported a...[Read More] Understanding Vitreous Degeneration: Causes and Symptoms Explained
Understanding High Myopia: Key Concerns and Eye Health Tips
Issues Related to High Myopia Hello, Doctor. I am highly myopic (900, 1200) and have floaters. I would like to ask you a few questions: 1. In addition to detecting retinal tears or holes, can a regular dilated fundus examination also assess the macula? Or does the macula requir...
Dr. Gao Pilin Reply:
Hello James: 1. Typically, a fundus examination can assess the macula. 2. This is also a phenomenon of floaters, which is due to vitreous degeneration. 3. It is possible to maintain the condition; regular check-ups are necessary, and laser treatment may be required if needed. 4. ...[Read More] Understanding High Myopia: Key Concerns and Eye Health Tips
Understanding Retinal Laser Treatment: Risks and Genetic Factors
Retinal laser treatment Hello Dr. Gao: I have a friend who experienced retinal detachment the day after undergoing laser treatment for a retinal tear. I would like to ask about the likelihood of such cases. He mentioned that it is uncertain whether a poor scarring reaction led to...
Dr. Gao Pilin Reply:
Hello, Xiaolin: The scabbing from the laser treatment takes some time to heal. If it peels off the next day, it indicates that moisture has entered the original wound, causing the peeling. This should not be related to the scab's tension. It is also unlikely to be related to...[Read More] Understanding Retinal Laser Treatment: Risks and Genetic Factors
Understanding Vitreous Degeneration: Concerns for High Myopia Patients
Vitreous degeneration Doctor, I have high myopia, and my floaters have persisted for several months. During this time, I have undergone two retinal examinations. Although there are no holes in my retina, the number of floaters has gradually increased, and every time I see them, I...
Dr. Liang Ce Reply:
We recommend that you: 1. Discuss the above situation further with your attending physician to determine if any additional tests are necessary. 2. Alternatively, consider seeking a second opinion from another physician. Thank you, and wishing you good health![Read More] Understanding Vitreous Degeneration: Concerns for High Myopia Patients
Understanding Retinal Issues and Floaters: Concerns and Recommendations
Retinal and floaters issues? Dear Doctor, Recently, due to my father's retinal detachment, I have started to pay more attention to eye diseases, which has caused me a lot of worry and anxiety. I have high myopia in both eyes (approximately 500-600 degrees, and potentially u...
Dr. Gao Pilin Reply:
Hello Ms. Tsai: I cannot determine if you need to undergo laser treatment immediately, but the doctor recommends it, so you should consider his opinion. The exercise you mentioned should not increase the number of floaters, as long as you do not make any sudden head movements, it...[Read More] Understanding Retinal Issues and Floaters: Concerns and Recommendations