Understanding Flashing Lights in Vision: Causes and Concerns
Seeing flashes of light when opening your eyes? Sometimes, after tightly closing my eyes and then opening them, I see flashes of light. However, I had my retina examined three weeks ago, and there were no issues.
Dr. He Jianxian Reply:
Hello Markll: Forcefully closing your eyes is equivalent to applying external pressure on the eyes. After relaxing, the pressure response may cause the retina to be pulled, which could lead to seeing flashes of light. It is advisable not to frequently perform this action. Directo...[Read More] Understanding Flashing Lights in Vision: Causes and Concerns
Post-Cataract Surgery Questions: Vision Clarity and Lens Performance
Questions after cataract surgery and lens replacement? I had cataract surgery on my right eye three weeks ago, using Alcon non-diffractive multifocal intraocular lenses. The doctor said the surgery was successful and my vision is 20/20. However, when I intentionally use my right ...
Dr. He Jianxian Reply:
Hello Mr. Ming-Yun: The visual experience with multifocal intraocular lenses can vary from person to person; some individuals are very satisfied, while others may find it not as good as expected. Regarding glare, if the pupil is larger at night, this condition may occur. Consider...[Read More] Post-Cataract Surgery Questions: Vision Clarity and Lens Performance
Understanding Post-Cataract Surgery Vision: Balancing Near and Far Sight
Post-cataract surgery A netizen told me that during cataract surgery, doctors typically do not aim for a vision of 1.0 (20/20) and intentionally leave about 1 diopter of hyperopia, fearing that the patient may develop hyperopia in the future. Is there any truth to this? My right ...
Dr. He Jianxian Reply:
Hello Mr. Ming-Yun: Essentially, it is true that the power of the intraocular lens may change slightly over time, which is difficult to overcome. However, reserving an additional 100 degrees is intended to facilitate near vision, not to prevent future hyperopia. Director He Jian-...[Read More] Understanding Post-Cataract Surgery Vision: Balancing Near and Far Sight
Managing Eye Flashes and Floaters: Treatment Options and Concerns
Flashing edema Hello Doctor, I currently have floaters (in my left eye) and flashes (in my left eye). I have a history of microvascular bleeding in my right eye, but I do not have issues with high blood pressure or diabetes. I often read and use the computer. My questions are: ...
Dr. He Jianxian Reply:
Dear Ms. Marilian, 1. Vitreous degeneration is irreversible, so medication will not improve your symptoms. 2. Retinal edema should primarily be managed by a retinal specialist, as general eye drops are not very effective. 3. This condition is unlikely to occur. Sincerely, ...[Read More] Managing Eye Flashes and Floaters: Treatment Options and Concerns
Understanding Visual Discrepancies Between Left and Right Eyes
When alternating between viewing text with both eyes, a difference is noticed between the left and right eyes? Hello doctor, I would like to ask, when I alternately close my left and right eyes while looking directly at the second line of "a" below, I notice that my lef...
Dr. Liang Ce Reply:
Recommendations: 1. Discuss the above situation further with your attending physician. 2. Alternatively, seek consultation at another ophthalmology medical facility. Thank you. Wishing you good health![Read More] Understanding Visual Discrepancies Between Left and Right Eyes
Accidentally Scratched Eyelid: When to Seek Medical Attention?
Poked the eyelid? Hello Doctor: This morning while I was sleeping with my eyes closed, I accidentally scratched my eyelid with my fingernail while trying to relieve an itch. Currently, I don't feel any discomfort. I would like to ask if I need to see a doctor for this situat...
Dr. Gao Pilin Reply:
Hello: If you are not experiencing any discomfort, such as eye pain, blurred vision, redness, or unusual discharge, there may not be an immediate need to see a doctor. However, please continue to monitor your condition, and if any unusual symptoms arise, it is advisable to seek m...[Read More] Accidentally Scratched Eyelid: When to Seek Medical Attention?
Understanding Visual Field Differences Between Your Eyes
Differences in visual fields observed by both eyes? Hello, doctor. I would like to ask, when I alternate closing my left and right eyes while looking directly at the second line of "a" below, I notice that my left eye cannot clearly see the first line's "a&quo...
Dr. Gao Pilin Reply:
Hello: This situation may indicate a visual field defect or visual problem, especially when the conditions of both eyes are different. However, to determine your condition, I recommend that you visit an ophthalmologist for an examination as soon as possible. An ophthalmologist ca...[Read More] Understanding Visual Field Differences Between Your Eyes
Understanding Flickering Vision: Causes and Concerns in Eye Health
Fluctuating flashes of light in the visual field? Hello Doctor: A few days ago, I woke up in the middle of the night to use the restroom and suddenly noticed a flash at the edges of my vision. I thought it was just a trick of the light or due to blinking. After returning to my ro...
Dr. Gao Pilin Reply:
Hello: There could be multiple potential causes for this situation. Here are a few possible reasons: 1. Macular diseases: Certain macular conditions, such as macular degeneration, may lead to visual disturbances or flickering, especially in low-light environments. 2. Eye strain: ...[Read More] Understanding Flickering Vision: Causes and Concerns in Eye Health
Understanding Eye Lightning: Symptoms and Risks of Retinal Issues
Flashes of light in the corner of the eye? A few days ago on Friday, I experienced a phenomenon that seemed like a flash in the corner of my eye, possibly due to the movement of my eyeball, resembling sparks from wires touching each other. This morning, it occurred again, and I n...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, such as flashes, floaters, and bright spots around the eyes, this may be related to eye health, but it cannot be determined whether it is associated with retinal detachment or retinal tears. Only a physician can make a specific diagnosi...[Read More] Understanding Eye Lightning: Symptoms and Risks of Retinal Issues
Understanding Vision Test Discrepancies in Children: Causes and Care Tips
Vision examination Hello, my child had a vision test at school with both eyes scoring 0.8, but at the ophthalmology clinic, the vision was measured at 0.4 for both eyes. However, the refractor test showed a 25-degree angle. What could be the reason for such a significant differen...
Dr. Cai Wenyuan Reply:
It may be due to different standards, as there is less use of electronic devices.[Read More] Understanding Vision Test Discrepancies in Children: Causes and Care Tips
Understanding Post-Surgery Visual Disturbances: Flashes and Shadows
Flashes and floaters after retinal and cataract surgery? Hello, Director Gao. Five weeks ago, I underwent vitrectomy combined with cataract surgery and silicone oil filling due to retinal detachment. I have noticed a dark spot in the central vision of my right eye. Recently, I di...
Dr. Gao Pilin Reply:
Hello: First, regarding the issue of shadows. After silicone oil tamponade surgery, some patients may see interfaces in their field of vision, which can cause shadows. This phenomenon may persist for a period of time but usually improves over time. However, I cannot determine you...[Read More] Understanding Post-Surgery Visual Disturbances: Flashes and Shadows
Understanding Eye Flashes: Causes and When to Seek Help
Flashes of light in the eyes? I would like to inquire about a situation I've been experiencing. For the past week, after turning off the lights, I have noticed a blue-purple semicircular flash at the edges of my vision, initially only in my right eye, but yesterday it seemed...
Dr. Gao Pilin Reply:
Hello: Based on your description, the flashes you are experiencing may be related to retinal traction, especially if you notice them in low-light environments. Given your history of laser treatment, retinal tears, and floaters, these are all significant factors concerning retinal...[Read More] Understanding Eye Flashes: Causes and When to Seek Help
Understanding High Eye Pressure and Optic Nerve Health: Key Concerns
Optic nerve-related Currently, I would like to briefly describe my situation. I was diagnosed with elevated intraocular pressure and slightly larger optic nerve cupping at the age of 18. I have been undergoing regular visual field tests and fundus examinations for the past five y...
Dr. Gao Pilin Reply:
Hello: (1) Based on your description, your intraocular pressure is currently stable in the range of 21-22 mmHg, and your visual field test results are normal, with no abnormalities in the fundus. This may indicate that your condition is currently stable and may only be classified...[Read More] Understanding High Eye Pressure and Optic Nerve Health: Key Concerns
Understanding Eye Flickering Upon Waking: Causes and Solutions
Flashing lights in the eyes upon waking? Hello, I would like to ask about a condition I've been experiencing. Since May, every time I wake up, I have a flickering sensation in my eyes that lasts for about ten seconds, which only goes away after I blink. Additionally, I start...
Dr. Gao Pilin Reply:
Hello: The sensations of flickering and floaters you described may be common issues related to the eyes and visual system. However, since you have undergone multiple examinations by both ophthalmology and neurology without any abnormalities found, these symptoms may not indicate ...[Read More] Understanding Eye Flickering Upon Waking: Causes and Solutions
Understanding Retinal Issues: Managing Floaters and Dry Eyes
Retinal issues Hello, doctor. I have previously undergone laser surgery for a retinal tear, and I also experience floaters and dry eye syndrome. Today, I noticed that when I turn my head, there are some visual disturbances that seem different from the usual floaters. I would like...
Dr. Gao Pilin Reply:
Hello: There are many types of floaters, and this is likely still a manifestation of floaters. They tend to move with head movements and usually do not require special treatment. You can monitor whether the symptoms worsen; if there are any changes, it is advisable to see an opht...[Read More] Understanding Retinal Issues: Managing Floaters and Dry Eyes
Understanding Retinal Issues: Symptoms and Solutions for Eye Health
Retinal issues Hello, doctor. I have previously undergone laser treatment for a retinal tear and I also have floaters. I apologize for not explaining clearly earlier. When I turn my head to a certain angle, I see something that resembles a shadow, like a somewhat transparent circ...
Dr. Gao Pilin Reply:
Hello: Based on your description, it is possible that you are experiencing vitreous floaters, also known as myodesopsia. However, the manifestations can vary depending on the location. For safety's sake, it is advisable to rule out any retinal issues, so I recommend that you...[Read More] Understanding Retinal Issues: Symptoms and Solutions for Eye Health
Understanding Filamentary Keratitis: Causes, Symptoms, and Treatment Options
Foreign body sensation in the eye? Hello, doctor. After ash flew into my eye, I sought medical attention and was informed that I had a corneal abrasion and inflammation. After using eye drops for three days, I still felt a foreign body sensation. I then visited another clinic, wh...
Dr. Gao Pilin Reply:
Hello: 1. Your physician has prescribed two types of eye drops, and you should use these medications as directed, following the prescribed dosage and frequency until you have completed all the medications. It may take some time for the medications to take effect, so please be p...[Read More] Understanding Filamentary Keratitis: Causes, Symptoms, and Treatment Options
Understanding Eye Shadows: What Your Symptoms Might Indicate
Eye floaters Hello, doctor. I would like to ask you: I have high myopia and floaters, and recently I have noticed an increase in the floaters. I often cover one eye to compare the vision between both eyes, and I accidentally discovered that after covering one eye and looking at a...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.[Read More] Understanding Eye Shadows: What Your Symptoms Might Indicate
Understanding Floaters: Are Black Lines in Your Vision a Sign of Retinal Issues?
When looking at the sky, people with floaters may see black lines or flashes? I have high myopia and also experience floaters. Recently, when looking at the sky, I sometimes see a sudden flash of a longer black line that quickly disappears. I would like to know if this could be a...
Dr. Gao Pilin Reply:
Hello: Due to your history of high myopia and floaters, the risk of retinal issues may be slightly elevated, especially if you experience symptoms of retinal detachment, such as sudden flashes of light, dark lines, or shadows in your field of vision. Considering this situation, I...[Read More] Understanding Floaters: Are Black Lines in Your Vision a Sign of Retinal Issues?
Will Scar Tissue Disappear After Retinal Surgery?
Post-retinal surgery Hello Doctor, I underwent surgery last year for tractional retinal detachment with vitreous hemorrhage. The surgery was successful, but I later discovered that scar tissue formed inside my eye. Will this scar tissue disappear over time?
Dr. Gao Pilin Reply:
Hello: The scar formed on the retina may not disappear. If you are concerned about the effects of the scar or have any other questions, it is advisable to consult your attending physician as soon as possible.[Read More] Will Scar Tissue Disappear After Retinal Surgery?