Understanding Visual Disturbances: Is It Visual Snow or Something Else?
Visual persistence? Visual snow syndrome? Mental health issues? Hello Doctor, I currently have high myopia in both eyes, close to 900 degrees. Recently, I started experiencing dizziness, which coincided with a change in my glasses. I went to an ophthalmologist to check my prescri...
Dr. Gao Pilin Reply:
Hello: Based on your description, your visual issues may be related to "visual snow" or "visual persistence." These phenomena can be normal in certain situations, but if you suddenly become aware of them and start to worry, it may exacerbate your discomfort. H...[Read More] Understanding Visual Disturbances: Is It Visual Snow or Something Else?
Understanding Visual Disturbances: Spots and Flashes After Waking Up
Upon waking, I notice many spots in my vision? Hello Doctor: I have a history of retinal tears in both eyes and have undergone laser treatment. This morning, when the phone rang in the living room, I hurriedly walked from my room and suddenly noticed many round spots of light in ...
Dr. He Jianxian Reply:
Hello Miss Xiao Ju: Visual persistence is a common phenomenon. Generally, if it resolves quickly, there is no need to worry too much. However, if you are still concerned, it is advisable to have an eye examination. Director He Jianxian, Ophthalmology Department, Nantou Hospital.[Read More] Understanding Visual Disturbances: Spots and Flashes After Waking Up
Understanding Floaters: Concerns and Eye Health Tips for Young Adults
The issue of floaters? Hello, Doctor. I would like to ask you some questions. I have been experiencing floaters for nearly three years now, but I feel that the number of floaters has increased recently. I wonder if this is due to my increased screen time and staying up late. Over...
Dr. Gao Pilin Reply:
Hello: Floaters are quite common in clinical practice, especially among individuals with myopia. Floaters typically occur due to the degeneration or liquefaction of the vitreous, resulting in tiny particles that affect the transmission of light within the eye, leading to shadows ...[Read More] Understanding Floaters: Concerns and Eye Health Tips for Young Adults
Understanding Floaters and Flashes: When to Seek Eye Care
Floaters and flashes in the eyes? Hello Doctor, Recently, due to the upcoming major exams, I have been studying every day, which has led to excessive eye strain and a noticeable increase in my floaters. I would like to ask you the following questions: 1. How many floaters are ...
Dr. Gao Pilin Reply:
Hello: 1. The severity of floaters varies from person to person; some may experience them mildly, while others may find them more pronounced. There is no specific standard for how many floaters are considered "many," but if you notice a significant increase in floater...[Read More] Understanding Floaters and Flashes: When to Seek Eye Care
Understanding Floaters and Flashes: When to Seek Eye Care
Floaters and flashes in the eyes? Hello, Doctor. Recently, due to the upcoming major exams, I have been studying every day, which has led to excessive eye strain and a noticeable increase in my floaters. I would like to ask you the following questions: 1. How many floaters are ...
Dr. Gao Pilin Reply:
Hello: 1. The severity of floaters varies from person to person; some may experience them mildly while others may find them more pronounced. There is no specific standard for how many floaters are considered "many," but if you notice a significant increase in floaters...[Read More] Understanding Floaters and Flashes: When to Seek Eye Care
Understanding Visual Afterimages and Color Sensitivity After Retina Laser Surgery
Visual afterimages, complementary colors, photophobia? Hello, I have undergone retinal laser treatment (for a retinal tear) and I am currently having regular check-ups. My last examination, including a fundus examination, was normal. However, I am now experiencing complementary c...
Dr. Gao Pilin Reply:
Hello: Visual persistence is divided into positive afterimages and negative afterimages. It refers to the phenomenon where visual perception remains for a period of time after the light stimulus on the retina has ceased. Positive afterimages are identical to the original image, w...[Read More] Understanding Visual Afterimages and Color Sensitivity After Retina Laser Surgery
Understanding High Myopia and Its Impact on Eye Health
High myopia and retinal issues? Hello, Doctor. I would like to ask you some questions. Thank you, Doctor! 1. In a dimly lit room, when I cover one eye, the vision in that eye appears very blurry, as if there is noise in front of me. Could this be related to retinal or macular de...
Dr. He Jianxian Reply:
Dear Ms. M: 1 & 2: Lesions or diseases do not simply resolve on their own. 3: Theoretically, we cannot see holes in our own retina; it is more likely to be floaters. 4: If you are concerned about potential retinal issues, you should prioritize a dilated eye examination by ...[Read More] Understanding High Myopia and Its Impact on Eye Health
Understanding Visual Persistence: Causes and Solutions for Eye Issues
Visual persistence In the past, there were no issues, but now it has become increasingly severe. When observing a person's face, if I move my gaze slightly to the side, their face remains unchanged. My hand moves slowly, resembling the motion of a magic wand, and the image p...
Dr. He Jianxian Reply:
Hello, Miss Yu: This situation is not normal. I recommend that you visit a large medical center for an examination by a retina specialist. Dr. He Jianxian, Ophthalmology Department, Nantou Hospital.[Read More] Understanding Visual Persistence: Causes and Solutions for Eye Issues
Understanding Eye Floaters and Shadows: Symptoms and Treatment Insights
Eye floaters I have high myopia of -1000 diopters in both eyes and developed floaters during high school. The doctor mentioned that I have vitreous detachment in my right eye. Symptom one: when I quickly turn my head to the right, I notice a very dark spot that flashes briefly an...
Dr. Gao Pilin Reply:
Hello: 1. You mentioned that you see black spots in your right eye when you turn your head quickly, which may be a manifestation of floaters. Floaters typically present as seeing small spots or shadows drifting in your field of vision, but symptoms can vary among individuals. Mac...[Read More] Understanding Eye Floaters and Shadows: Symptoms and Treatment Insights
Understanding Visual Disturbances: When to Seek Eye Care and Testing
Feeling a blur around the eyes, but it seems like I can still see clearly & questions about eye health check-up? Hello, Dr. Gao: Recently, I have occasionally experienced visual disturbances, such as seeing slight tremors in certain areas or noticing some noise or a faint mo...
Dr. Gao Pilin Reply:
Hello: (1) For patients with high myopia, regular ophthalmic examinations are very important. It is generally recommended to have a comprehensive eye exam at least once a year to ensure your visual health. (2) The health check items you mentioned already include many important op...[Read More] Understanding Visual Disturbances: When to Seek Eye Care and Testing
Glare and Nighttime Light: Risks After Laser Eye Surgery
Glare, the hazards caused by various lights at night? Hello Doctor, after my myopic laser surgery, I have been experiencing severe glare. Previously, I didn't find the red and green traffic lights or car headlights to be bright when going out at night, but now they seem quit...
Dr. Gao Pilin Reply:
Hello: Exposure to intense light sources when going out at night may have some impact on vision, but it should not lead to macular degeneration.[Read More] Glare and Nighttime Light: Risks After Laser Eye Surgery
Understanding Severe Visual Persistence: Causes and Treatment Options
Severe visual persistence? Hello, Doctor: I started experiencing severe visual persistence last week. When I look at articles on my phone or in books and then move them away, I see a semi-transparent image of the text lingering (the visual persistence lasts about 10 seconds, and ...
Dr. He Jianxian Reply:
Hello Mr. Duoduo: There is no corresponding treatment for this condition, so we can only wait for the temporary situation to pass before engaging in the appropriate work. Director He Jianxian, Ophthalmology Department, Nantou Hospital.[Read More] Understanding Severe Visual Persistence: Causes and Treatment Options
Understanding Strabismus: Symptoms, Causes, and When to Seek Help
Strabismus issues? I have high myopia, with both eyes around -700. Recently, I noticed that when I relax and remove my glasses, I see double when looking at my fingers at a distance of about 15 to 30 centimeters. However, when I look with one eye, I do not experience this. I aske...
Dr. Gao Pilin Reply:
Hello: Based on your description, there may be several issues: 1. Diplopia: Seeing two fingers while relaxed is a normal phenomenon, as your eyes are focused on a distance, causing nearby objects to appear double. 2. Focusing issues: You mentioned difficulty maintaining focus on ...[Read More] Understanding Strabismus: Symptoms, Causes, and When to Seek Help
Understanding Visual Shadows: Are They Normal with Floaters?
Questions about shadows in the vision and glaucoma? I have floaters and discovered a retinal tear which has been treated. During my follow-up appointment in early June, my retina was checked and found to be fine. However, about a week after the appointment, I noticed that in a fi...
Dr. Gao Pilin Reply:
Hello: The appearance of shadowy spots resembling visual afterimages after retinal laser surgery may be related to the surgical process and recovery period. Retinal laser surgery is a treatment method for retinal diseases that can cause some temporary visual changes. After retina...[Read More] Understanding Visual Shadows: Are They Normal with Floaters?
Understanding Eye Strain: Symptoms and Solutions for Ciliary Muscle Issues
Eye strain ciliary muscle Hello doctor, I recently noticed a recurring aching sensation in my right eye, especially more pronounced in the evening. A few days ago, I visited a doctor due to issues with floaters and visual shadows, and at that time, I also experienced pain in my r...
Dr. Gao Pilin Reply:
Hello: This type of soreness is usually caused by eye fatigue, so it is important to allow your eyes to rest adequately. You can consider the following two options: 1. Continue to monitor and use topical medications: If your current symptoms are not severe, you may choose to cont...[Read More] Understanding Eye Strain: Symptoms and Solutions for Ciliary Muscle Issues
Understanding Flashing Lights in Vision: When to Seek Medical Attention
The appearance of lightning-like flashes in the eyes? Hello Doctor, this morning when I drove out of the parking lot (from dark to bright), I suddenly noticed a small lightning-like image in my left eye. I could still see it with my eyes closed in the dark, and then I put on sung...
Dr. Gao Pilin Reply:
Hello: Based on your description, you may be experiencing visual persistence caused by intense light stimulation. This phenomenon typically occurs after a sudden transition from a dark environment to a bright one or exposure to strong light sources such as flash photography, resu...[Read More] Understanding Flashing Lights in Vision: When to Seek Medical Attention
Understanding Visual Phenomena from Screen Time: Are They Harmful?
Phenomena observed when using a computer? 1. Hello, doctor. Recently, I have noticed that if I stare at a computer screen or television for a period of time, a large black rectangular shadow appears in front of my eyes (I can still see the background). After resting for a while, ...
Dr. Gao Pilin Reply:
Hello: 1. The phenomenon you described may be an afterimage produced by the computer screen. An afterimage refers to the continued perception of an image after the light source has disappeared. This occurs because the photoreceptor cells in the retina (cones and rods) continue to...[Read More] Understanding Visual Phenomena from Screen Time: Are They Harmful?
Understanding Colorful Spots in Vision: Is It Visual Afterimage or Floaters?
Seeing colored spots intermittently in the eyes? Hello, doctor. I've been experiencing this issue for the past 1 to 2 months, and it's quite bothersome. At the end of last year, I got a new pair of glasses (one lens is 600 and the other is 800) because I was having trou...
Dr. Cai Wenyuan Reply:
It may be vitreous floaters.[Read More] Understanding Colorful Spots in Vision: Is It Visual Afterimage or Floaters?
Understanding Orange Lines in Vision: Causes and Concerns
Seeing orange lines in the vision? Hello, Doctor. I have high myopia and floaters. Yesterday, when I lay down and turned off the lights, I suddenly saw an orange line (about the width of a finger) on the ceiling. Whether my eyes were open or closed, I felt it for a few minutes, a...
Dr. Gao Pilin Reply:
Hello: Based on your description, it is possible that you are experiencing a phenomenon known as visual persistence. Visual persistence is a common visual occurrence where your visual system retains a temporary image after your eyes have been exposed to bright light or after brie...[Read More] Understanding Orange Lines in Vision: Causes and Concerns
Understanding Visual Afterimages and Floaters: Key Eye Health Insights
Visual persistence + floaters Hello Doctor: I have myopia of approximately 800 to 900 degrees, floaters, and dry eyes. I had a normal fundus examination a month ago. I have a few questions I would like to ask: 1. I sometimes experience significant visual persistence, for example...
Dr. Gao Pilin Reply:
Hello: 1. Based on your description, this may be a phenomenon known as "vitreous detachment," rather than visual persistence. The vitreous is the clear gel-like substance in the eye, which gradually shrinks and changes shape with age. When these changes begin to affec...[Read More] Understanding Visual Afterimages and Floaters: Key Eye Health Insights