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 Zigzag Light Patterns in Vision: Causes and Insights
Sawtooth light? Hello, Doctor Gao. I have noticed a curved, serrated bright line on the right side of my vision. I use the term "bright line" because it does not flicker. When I close my eyes and rest, the symptoms disappear within ten minutes, and I do not experience a...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, the appearance of arc-shaped, serrated bright lines in your right visual field may be related to issues with the eyes or the nervous system. Here are some possible factors and recommendations: Possible Factors: 1. Eye Problems: Abnorma...[Read More] Understanding Zigzag Light Patterns in Vision: Causes and Insights
Understanding Flashing Lights and Visual Disturbances After Retinal Repair
The eyes perceive light as extremely bright, and the light appears to pulsate or change in size? Hello Doctor, I had an eye examination in mid-April and found that there were many retinal tears that have been repaired. Prior to the retinal repair, I also had dry eye syndrome. I h...
Dr. Gao Pilin Reply:
Hello: Based on the situation you described, the symptoms of flashes of light, changes in light intensity, and seeing rainbows that you experienced around early April may be related to your retinal tear. These symptoms could be caused by dynamic changes in the vitreous fluid due ...[Read More] Understanding Flashing Lights and Visual Disturbances After Retinal Repair
Understanding Floaters, Flashes, and Visual Disturbances in Teens
Floaters, flashes, and dark lines? Hello, doctor. I am a seventeen-year-old student with a family history of glaucoma. I have myopia in both eyes, with prescriptions of ((575°, 250°), (625°, 275°)). I was diagnosed with floaters in my first year of high school and have been follo...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.[Read More] Understanding Floaters, Flashes, and Visual Disturbances in Teens
Understanding Visual Flicker and Vibration Sensations in Myopia
Visual flickering, vibration sensation? Hello Doctor: I have high myopia and a few months ago I discovered floaters, and recently I've been experiencing flashes. I have visited clinics multiple times, but no issues were found; they suggested it might be a process of posterio...
Dr. Gao Pilin Reply:
Hello: Here are the possible reasons: 1. Posterior Vitreous Detachment: Your doctor mentioned that you may be experiencing posterior vitreous detachment. This can lead to symptoms such as floaters and occasional flashes of light. 2. Visual Disturbance: This sensation is not commo...[Read More] Understanding Visual Flicker and Vibration Sensations in Myopia
Understanding Temporary Vision Loss in One Eye: Causes and Recovery
Transient monocular vision loss? Suddenly, my left eye went completely blank, as if shrouded in thick fog. There was no headache, dizziness, or any other bodily abnormalities; I just couldn't see out of my left eye. After about 10 minutes, I began to see a small dot in my fi...
Dr. He Jianxian Reply:
Hello QQQ: Based on your description, your condition may be a precursor symptom of a migraine. This type of visual disturbance typically lasts for about ten minutes; some individuals may experience a headache afterward, while others may not. Usually, examinations do not reveal an...[Read More] Understanding Temporary Vision Loss in One Eye: Causes and Recovery
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
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
Light Sensitivity After Stopping Eye Drops: When to Seek Help?
After discontinuing the eye drops for one month, there is still photophobia? Hello, doctor. I was misdiagnosed with glaucoma on March 18 and used 2% eye drops for nearly a week. Later, on March 25, I visited an ophthalmologist with more advanced equipment, and the doctor advised ...
Dr. Gao Pilin Reply:
Hello: The symptoms you described may be related to the side effects of the topical ophthalmic solution (2%). Generally, side effects should gradually subside after discontinuation of the medication, but individual responses may vary. If you have stopped the medication for nearly...[Read More] Light Sensitivity After Stopping Eye Drops: When to Seek Help?
Understanding Pseudomyopia: Causes, Effects, and Recovery Options
Pseudomyopia The original myopia measurements are 625 and 650. The patient usually has a high visual demand and wears myopia control contact lenses. During regular follow-up visits, the ophthalmologist mentioned a significant increase in pseudomyopia but did not prescribe any cyc...
Dr. Gao Pilin Reply:
Hello: 1. Can pseudomyopia recover on its own? Pseudomyopia is caused by excessive tension in the ciliary muscles of the eye. This tension may improve with appropriate rest and reduced eye strain, but it requires time and lifestyle changes. Regular visits to an ophthalmologist ar...[Read More] Understanding Pseudomyopia: Causes, Effects, and Recovery Options
Understanding Visual Disturbances: What Causes Grid Patterns in Vision?
Seeing grids? Hello, I have myopia of -5.25 in my right eye and -6.25 in my left eye, along with floaters. Recently, when I wake up in the morning in a dimly lit room, I see a checkerboard pattern. What could this be?
Dr. Gao Pilin Reply:
Hello: The vitreous body is a transparent gel-like substance located between the retina and the lens. As one ages, the vitreous may become cloudy and floaters or spots may appear. These floaters or spots may become more noticeable in dim lighting conditions. If you see a checkerb...[Read More] Understanding Visual Disturbances: What Causes Grid Patterns in Vision?
Understanding Visual Disturbances: Glaucoma, Floaters, and Eye Strain
The sensation of light when blinking? Hello, Doctor! I have early-stage glaucoma, floaters, and myopia with a prescription of -5 to -6 diopters along with astigmatism (I have regular check-ups, and my visual field, OCT, and retinal examinations in December all showed normal resul...
Dr. Gao Pilin Reply:
Hello: 1. The phenomenon of seeing white circles resembling eyes after blinking in the dark may be a visual afterimage. A visual afterimage refers to the persistence of a visual impression after the stimulus has been removed. In low light conditions, blinking causes the pupils ...[Read More] Understanding Visual Disturbances: Glaucoma, Floaters, and Eye Strain
Seeing Purple Light: Understanding Visual Disturbances and Eye Health
Seeing purple light in the eyes? Hello, Doctor. Let me explain my situation. I have floaters in both of my eyes, and I have undergone laser treatment on my right eye. Recently, I occasionally see what appears to be a purple light in my peripheral vision; sometimes it's on a ...
Dr. Gao Pilin Reply:
Hello: Based on the situation you described, the phenomenon of seeing purple light in your peripheral vision may be caused by several factors: 1. **Floaters**: Floaters refer to the appearance of black spots, small bugs, or flashes in your vision, which are caused by the liquef...[Read More] Seeing Purple Light: Understanding Visual Disturbances and Eye Health
Understanding Vision Changes During Intense Running: Eye or Heart Issue?
What could this problem be? Hello Doctor, I would like to ask about a situation where I experience a dimming and slight blurriness in my vision when I run at full speed. I see a large bright circle in the center of my vision that appears dark in the middle, and it becomes more pr...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, this may be related to the blood supply to the eyes or the visual system rather than a cardiovascular issue. When you are running at full effort, your body requires more oxygen and blood supply to various parts, including the eyes. If y...[Read More] Understanding Vision Changes During Intense Running: Eye or Heart Issue?
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 Visual Snow: Symptoms and Insights for Eye Health
Ocular noise Hello Doctor, I have a problem with floaters. When I look at the sky, I see flashes that seem to drift down. I went to see an ophthalmologist, and they said it was a symptom of floaters. Recently, after taking a nap during lunch, I woke up and noticed that my left ey...
Dr. Gao Pilin Reply:
Hello: Based on your description, you may be experiencing some visual issues. Floaters typically present as small dots or lines that appear to float in your field of vision, resembling tiny clouds or mosquitoes. The phenomenon you described after your afternoon nap, which looked ...[Read More] Understanding Visual Snow: Symptoms and Insights for Eye Health
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
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
Understanding Eye Flashes and Floaters: When to Seek Help
Flashes of light when closing the eyes? Hello Doctor: I have high myopia (approximately -1000 in both eyes) and recently discovered symptoms of floaters and flashes of light. I have visited the ophthalmologist multiple times for dilated eye examinations, and just yesterday I comp...
Dr. Gao Pilin Reply:
Hello: Based on the current examination results, the physician did not find any obvious issues and has recommended regular follow-up. However, you mentioned experiencing sleep paralysis and visual disturbances, which may cause some discomfort. I suggest you closely monitor the fr...[Read More] Understanding Eye Flashes and Floaters: When to Seek Help