Understanding Visual Disturbances: Causes and Solutions for Flashing Lights and Floaters
Flashing floaters Doctor, when I look through the screen window, the lines and grids appear to overlap with the railing or tiles, and the lines on the ground look like a caterpillar. Is this related to the phenomenon of visual snow? What methods are available to improve eye coord...
Dr. Gao Pilin Reply:
Hello, Kuan-Chieh: The phenomenon you see when looking through a screen is likely a normal optical effect. The lines on the ground resembling caterpillars are something I'm not sure about, but it is not the Scheerer's phenomenon. Please refer to this link: https://uploa...[Read More] Understanding Visual Disturbances: Causes and Solutions for Flashing Lights and Floaters
Understanding Occasional Visual Disturbances: When to Seek Help
Occasional visual disturbances? Hello Doctor: I have a job that requires extensive use of my eyes, and I have high myopia of up to 600 degrees along with symptoms of vitreous floaters. I have been very careful with my eye usage and also undergo regular fundus examinations. Howeve...
Dr. Gao Pilin Reply:
Hello, Xun Cai: The wavy lines you see are caused by the liquefaction of the vitreous body, which is a temporary phenomenon, along with the white light and shadows. When lying down and looking at the ceiling, the floaters sink closer to the retina, which is why you can see them. ...[Read More] Understanding Occasional Visual Disturbances: When to Seek Help
Understanding Floaters and Visual Disturbances: When to See an Eye Doctor
Glasses and floaters? Hello, doctor. Yesterday I had a dilated eye exam, and the doctor said everything was fine. However, I occasionally still see things floating by. Just now, while reading, I suddenly saw a dark shadow in the corner of my right eye, but it might also have been...
Dr. Gao Pilin Reply:
Hello Yiyi: When looking to the sides of your glasses, you may see double images due to the prism effect, which should not be a concern. Currently, there is no treatment for floaters, and taking lutein will not improve the condition. In Taiwan, the ophthalmology department at Puz...[Read More] Understanding Floaters and Visual Disturbances: When to See an Eye Doctor
Understanding Flashing Lights After Retinal Laser Surgery: What to Expect
Flashes of light after retinal laser surgery? Hello, doctor. I would like to ask about the phenomenon of flashes (like lightning) occurring in the same location on the day after retinal laser surgery. This is the same area where I experienced flashes frequently before the surgery...
Dr. He Jianxian Reply:
Hello, Xiao Riguang: "Flash visual disturbances" occur due to traction forces that affect the retina, and they will not disappear simply after undergoing laser treatment. The flashes will only cease when the tractional pressure is relieved. Additionally, laser treatment...[Read More] Understanding Flashing Lights After Retinal Laser Surgery: What to Expect
Does Sneezing Affect Laser Repair After Retinal Hole Treatment?
Will sneezing during the recovery period after laser repair of a retinal tear affect the laser treatment? In the days following laser treatment for retinal tears, due to pre-existing allergies, there may be uncontrollable sneezing. After sneezing, there might be some visual distu...
Dr. Gao Pilin Reply:
Hello, Xiao Lin: Sneezing should not significantly affect the results of retinal laser treatment. Experiencing visual disturbances, such as seeing stars, during a sneeze is a physiological phenomenon. In Taiwan, the ophthalmology department at Puzi Hospital is open on Monday, Tue...[Read More] Does Sneezing Affect Laser Repair After Retinal Hole Treatment?
Understanding Retinal Issues: Managing Flashing Lights and Visual Disturbances
Retinal issues? Hello Doctor: I experienced a sensation of flashing lights after having a retinal tear and a posterior vitreous detachment in the first year of junior high. I asked the ophthalmologist about any retinal holes, and he said there were none. However, I would like to ...
Dr. Gao Pilin Reply:
Hello Guan-Jie: The flashes of light caused by the vitreous pulling on the retina cannot be alleviated and you will have to wait for the vitreous to gradually separate. This disturbance is likely caused by fibrous structures within the vitreous and should not be considered a path...[Read More] Understanding Retinal Issues: Managing Flashing Lights and Visual Disturbances
Understanding Visual Disturbances After Cataract Surgery: A Patient's Journey
Like being in a fog? Hello, Doctor. My mother is 69 years old. She has undergone cataract surgery on her right eye and has normal vision in that eye, but she is completely blind in her left eye. On July 1, after getting eyebrow embroidery, she started experiencing swelling in her...
Dr. Gao Pilin Reply:
Hello Ashley: If you are experiencing this situation, and after checking there are no obvious issues with your eyes, seeing flashes of light and floaters may indicate a problem with the vitreous body. The time it takes to adapt from bright to dark areas may be prolonged, which co...[Read More] Understanding Visual Disturbances After Cataract Surgery: A Patient's Journey
Post-Surgery Concerns After Trabeculectomy: Eye Pressure and Visual Disturbances
Postoperative issues following a tonsillectomy? Hello Doctor: Last month, a family member underwent trabeculectomy on their right eye due to elevated intraocular pressure from iritis. Recently, they reported seeing a line in the lower middle part of their vision, resembling a sea...
Dr. He Jianxian Reply:
Hello Mr. HELP: During the trabeculectomy, it is necessary to create a drainage hole on the iris at the surgical site. If the drainage hole is larger, it may cause light interference, which your family members likely observed. Theoretically, after surgery on the right eye, the in...[Read More] Post-Surgery Concerns After Trabeculectomy: Eye Pressure and Visual Disturbances
Understanding Common Eye Issues: Visual Disturbances After Light Exposure
Minor issues from childhood? 1. After looking at a bright light, the area in the vision that appears dark is due to the temporary afterimage effect, which occurs when the photoreceptors in the retina become overstimulated. When you close your eyes, the area may appear green or pi...
Dr. Gao Pilin Reply:
Hello, this phenomenon is known as "afterimage," where the residual colors of the image are the complementary colors of the original. When your eyes are open, the bright background makes it difficult to notice the white mist, while closing your eyes against a dark backg...[Read More] Understanding Common Eye Issues: Visual Disturbances After Light Exposure
Understanding Eye Symptoms: Are Your Visual Disturbances a Cause for Concern?
The corner of the eye seems to dim momentarily? Premise: I had a fundus examination at the beginning of February, which was normal. I have myopia close to -8.00 diopters in both eyes. Last month, I visited again and was diagnosed with mild dry eye. Yesterday, before going to bed,...
Dr. Gao Pilin Reply:
Hello, Student Hsi: The examination in February showed no issues, and the current phenomenon may be a physiological occurrence of the retina, which is less likely to be related to floaters. If you are unable to see an ophthalmologist recently, it is okay to wait a bit, but pleas...[Read More] Understanding Eye Symptoms: Are Your Visual Disturbances a Cause for Concern?
Understanding Subtle Visual Disturbances: Is It Computer Vision Syndrome?
Seeing a very faint shadow effect on a white background? Hello Doctor: I have noticed over the past couple of days that when I look at the computer or at very bright backgrounds, I feel something strange. Everything appears very clear, but it seems like there is a very faint, alm...
Dr. Gao Pilin Reply:
Hello: This faint shadow is also a type of vitreous degeneration. It is larger than dot-like floaters and is related to vitreous fibrosis. Computer vision syndrome refers to the condition caused by prolonged computer use, leading to muscle tension and difficulty focusing, resulti...[Read More] Understanding Subtle Visual Disturbances: Is It Computer Vision Syndrome?
Redness in Pupil After Eye Drops Post-Vitreous Surgery: Causes and Concerns
After cataract surgery, the pupil of the eye turned red after the administration of eye drops? Hello, I had vitrectomy (silicone oil surgery) five weeks ago. After applying eye drops, my pupils turn red about half an hour later and take about 2 to 3 hours to return to normal. Dur...
Dr. He Jianxian Reply:
Hello, Xiaoxia: If your pupils turn red half an hour after using eye drops and take 2-3 hours to return to normal, it is unlikely to be hemorrhaging, as visual disturbances from bleeding typically do not resolve. Additionally, it is very difficult to observe internal bleeding wit...[Read More] Redness in Pupil After Eye Drops Post-Vitreous Surgery: Causes and Concerns
Understanding Visual Disturbances: Light Flashes and Surface Waves
Flashing lights and road surface undulations? Hello Dr. Gao, due to my work, I need to operate a computer for long periods. I would like to ask you about the following: 1. About two years ago, I frequently experienced overlapping images of the ceiling lights and decorations when...
Dr. Gao Pilin Reply:
Hello Mr. Chang, 1. It is possible that you have a strabismus issue. When you are overly fatigued or just waking up, the images from both eyes may not align, leading to this phenomenon. 2. This is likely a liquefaction phenomenon caused by vitreous degeneration. Cavities begin t...[Read More] Understanding Visual Disturbances: Light Flashes and Surface Waves
White Light in One Eye: Causes and Concerns Explained
Appearance of white light in the eye? Hello doctor, I would like to ask about a recent issue. When I sit or squat for a long time and then stand up, I notice white flashes in the peripheral vision of my left eye, while my right eye is fine. Additionally, I've been feeling my...
Dr. Gao Pilin Reply:
Hello Mr. Chen: Your issue may be related to blood pressure. Standing up after squatting for a long time could lead to cerebral hypoperfusion, resulting in visual disturbances. The peripheral white light you are experiencing could also be due to vitreous traction, as the action o...[Read More] White Light in One Eye: Causes and Concerns Explained
Understanding Visual Disturbances Upon Waking: Causes and Concerns
Visual conditions upon waking up? Hello Doctor: Today, when I just woke up and opened my eyes, I noticed that my entire field of vision was filled with small grids (many intersecting vertical and horizontal lines). At that time, the curtains in the room were not drawn, so it was ...
Dr. Gao Pilin Reply:
Hello: 1. What could be the reason for this? Is it related to my floaters? (I had a fundus examination last week, and the examining doctor said my retina is fine.) It should be related to the floaters. This phenomenon may occur due to the adjustment of focus in your eyes right ...[Read More] Understanding Visual Disturbances Upon Waking: Causes and Concerns
Understanding Flickering and Visual Noise in Floaters: Causes and Concerns
Flashing sensations and noise? Hello Doctor: I have floaters in both of my eyes. In the past few weeks, I have noticed a slight flickering sensation and a visual disturbance resembling static from a broken television when I close my eyes to sleep. Recently, I discovered that this...
Dr. Gao Pilin Reply:
Hello: When lying down and sitting up, the gravitational effect on the vitreous body changes direction, causing floaters to move in different directions. The traction of the vitreous body on the retina also varies, which explains these phenomena. After a dilated fundus examinatio...[Read More] Understanding Flickering and Visual Noise in Floaters: Causes and Concerns
Understanding Visual Disturbances: Symptoms and Solutions for Eye Issues
Diplopia and issues with colored lights? Hello, Doctor. I have several issues with my eyes that I would like to consult you about: 1. At night, when I look at bright lights, such as lamps or LED displays, I notice a layer that seems to float above them. For instance, with an LED...
Dr. Gao Pilin Reply:
Hello, Student Yang: 1. This is caused by astigmatism. During the day, the pupils are smaller, so it is less noticeable. 2. This is the prism effect, and there is no need to worry. Regardless of whether you have experienced this phenomenon before, it is a normal prism effect bas...[Read More] Understanding Visual Disturbances: Symptoms and Solutions for Eye Issues
Understanding Visual Disturbances in High Myopia: What You Need to Know
Visual problems When I cover my right eye, my left eye can look all the way to the left without any issues. However, when I keep my gaze fixed to the far left and move my head side to side, I notice a sensation similar to a droplet of water moving along with my gaze. This occurs ...
Dr. He Jianxian Reply:
Based on your description, it seems more like floaters; however, since you have also undergone dilation to examine the retina, there shouldn't be too much concern. Dr. He Jianxian, Nantou Hospital.[Read More] Understanding Visual Disturbances in High Myopia: What You Need to Know
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 Sudden Visual Disturbances: What You Need to Know
Sudden onset of blind spots? Hello, Doctor. Recently, I have noticed that sometimes I see small dots or lines resembling blind spots (similar to black specks or static on a television screen), which I sometimes cannot perceive with my vision. These spots can move at times, but th...
Dr. Gao Pilin Reply:
Hello, Yuanlong: Both floaters and retinal detachment are phenomena associated with vitreous degeneration. Your condition is likely a type of floaters, and there is no need to worry excessively. However, it is still recommended that you undergo a dilated eye examination. If every...[Read More] Understanding Sudden Visual Disturbances: What You Need to Know