Understanding Flashing Lights in Vision: When to Seek Eye Care
Flash problem Dear Doctor, I apologize for disturbing you during your busy schedule. I have approximately 800 degrees of myopia in both eyes, and due to experiencing floaters and suspected glaucoma, I have been undergoing regular check-ups since last year. In November of last ye...
Dr. Gao Pilin Reply:
Hello Natsuki: Typically, flashes in the eyes do not produce any sound. If there are no further occurrences or additional symptoms, you may continue to observe. Angle-closure glaucoma can trigger acute glaucoma, while open-angle glaucoma usually does not convert to angle-closure ...[Read More] Understanding Flashing Lights in Vision: When to Seek Eye Care
Can Retinal Exams Detect Cataracts? Understanding Eye Health Concerns
Can a retinal fundus examination detect the presence of cataracts? Hello Doctor: I have been experiencing double vision in both eyes (even when covering one eye), and it feels like the shadow is gradually expanding. I have visited the retina and cornea departments at Chang Gung M...
Dr. Gao Pilin Reply:
Hello: If cataracts are present, they can definitely be detected. If the physician did not mention it, it is likely that there are none. In Taiwan, the ophthalmology department at Puzi Hospital is open on Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM, an...[Read More] Can Retinal Exams Detect Cataracts? Understanding Eye Health Concerns
Can People with High Myopia Safely Practice Inversions and Exercise?
Is it safe for individuals with high myopia to perform inverted exercises? Hello, Doctor. I am 24 years old, with myopia of -7.75 in my left eye and -8.00 in my right eye, without astigmatism. A few days ago, I suddenly noticed the presence of floaters, so I went for a fundus exa...
Dr. Gao Pilin Reply:
Hello, Xiao Qiu: 1. Inversion can cause blood to flow backward rapidly, leading to increased blood pressure, intracranial pressure, and intraocular pressure. Performing sit-ups on an inversion table can further accelerate venous return, resulting in even higher blood pressure an...[Read More] Can People with High Myopia Safely Practice Inversions and Exercise?
Understanding Early Macular Degeneration: Symptoms and Concerns
Macular degeneration Hello, doctor. I have myopia of around 500-600 degrees and have experienced floaters for many years. A few days ago, while looking at text on my phone, I noticed that the letters on the far left or far right appeared slightly distorted (this issue is limited ...
Dr. He Jianxian Reply:
In the absence of clinical changes, it is generally difficult to predict what changes may occur in the future. It is recommended to have a dilated fundus examination periodically to detect any issues early for timely treatment. Additionally, you can use the Amsler Grid for self-m...[Read More] Understanding Early Macular Degeneration: Symptoms and Concerns
Seeing Shadows After Closing Eyes: Possible Causes and Concerns
Seeing shadows upon closing and reopening the eyes? Hello Doctor: I am a patient with high myopia. At the end of February, I noticed that after closing my eyes for about 10 seconds and then reopening them, there is a small area in the lower right part of my right eye that takes a...
Dr. Gao Pilin Reply:
Hello, Phy: It is possible that there is a functional issue with the photoreceptor cells in this part of the retina, which may be causing a slower response. Functional problems cannot be detected through dilation and are also difficult to measure with instruments. It is advisable...[Read More] Seeing Shadows After Closing Eyes: Possible Causes and Concerns
Understanding Visual Noise: Is It Related to Floaters?
There is visual noise in the eyes, sometimes resembling a light drizzle? Hello Doctor, one day I noticed that when I looked outside carefully, it felt like there was a light drizzle, even though it wasn't actually raining. Recently, when I wake up and open my eyes, I see a l...
Dr. Gao Pilin Reply:
Hello, Xiao K: Sometimes this condition can also be a type of floaters, but given the changes in your situation, it is advisable to get an examination to rule out other potential issues. At the e-Hospital in Puzi, Taiwan, the ophthalmology department is open on Monday, Tuesday, T...[Read More] Understanding Visual Noise: Is It Related to Floaters?
Retinal Issues and Macular Fold in Right Eye: Laser Treatment or Monitoring?
Retinal issues + right eye macular fold? Hello, Director Gao. I have a myopia of -7.50 diopters in both eyes. Recently, during a fundus examination, it was found that there is traction under the retina in both eyes, but no holes. There is also a macular fold in my right eye. Shou...
Dr. Gao Pilin Reply:
Hello Wen: As you mentioned, laser treatment does carry certain risks. If there is no immediate need, monitoring is advisable, and your attending physician will provide further management based on your condition. The Ophthalmology Department at Puzi Hospital in Taiwan is availabl...[Read More] Retinal Issues and Macular Fold in Right Eye: Laser Treatment or Monitoring?
Understanding Night Blindness: Symptoms and Diagnosis Explained
Inquiry about night blindness? Hello, doctor. I would like to inquire whether not being able to see anything in a completely dark room could be a sign of night blindness. Recently, I've noticed that I have difficulty reading signs at night, and I'm unsure if this is rel...
Dr. Gao Pilin Reply:
Hello Wei: If you find it difficult to read the signs outside at night, it may be related to your prescription. Try wearing glasses to see if it improves your clarity; if it does, then there is likely no issue, and it should not be night blindness. After examination, everything a...[Read More] Understanding Night Blindness: Symptoms and Diagnosis Explained
Understanding Eye Pressure and Corneal Thickness: Key Insights for Patients
Intraocular pressure and corneal thickness? Hello Doctor: Since I started experiencing floaters in March 2020, I have been regularly visiting an ophthalmologist for check-ups. In March, my eye pressure readings were 19 and 21 (University Hospital, with some margin of error). In A...
Dr. Gao Pilin Reply:
Hello, Xiao Liao: 1. Generally, in your twenties, the eyes should not be swollen or feel hard to the touch. If you experience such symptoms, the most common cause is fatigue. 2. Due to differences in equipment, please consult a physician to determine whether your intraocular p...[Read More] Understanding Eye Pressure and Corneal Thickness: Key Insights for Patients
Understanding Eye Flashes: Symptoms, Risks, and Eye Exams Explained
Flashes of light in the eyes? Hello, Doctor. 1. I have mild symptoms of floaters in my eyes. I have researched that if flashes occur, it could indicate retinal detachment. My eyes felt a brief flash of light, but is this what is referred to as photopsia in the literature? 2. ...
Dr. Gao Pilin Reply:
Hello, concerned individual: 1. It is possible. 2. It usually does not cause significant discomfort and typically does not last as long as 12 hours. Side effects are uncommon. 3. Yes, it is possible. 4. The light under the eyes may be due to light coming through the junction...[Read More] Understanding Eye Flashes: Symptoms, Risks, and Eye Exams Explained
Can Dry Eyes Cause Pseudomyopia After Vision Correction Surgery?
Continuation: Can dry eyes cause astigmatism? Hello, Doctor. Last week, I inquired about experiencing significant dryness and some pain in my eyes after undergoing vision correction. It has been four months since the surgery, but one of my eyes has shown a noticeable increase in ...
Dr. Gao Pilin Reply:
Hello Ms. Chen: Astigmatism caused by dry eyes is uncommon. Astigmatism is due to irregularities in the cornea, so any factors that destabilize the corneal condition could potentially increase astigmatism. A short-term increase in astigmatism is not common, and currently, it shou...[Read More] Can Dry Eyes Cause Pseudomyopia After Vision Correction Surgery?
Experiencing Eye Flashes After Fundus Exam: Should You Worry?
Flashes of light in the eyes? I had a fundus examination on Friday, but on Sunday night, I experienced flashes of light that lasted for 30 seconds. Since then, there have been no further occurrences. Should I be concerned or schedule a follow-up appointment?
Dr. Gao Pilin Reply:
Hello: If it occurs only once, you can observe it. However, if the situation worsens or continues to happen, you should return for a check-up. At the Puzih Hospital Eye Clinic in Taiwan: Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM, and Wednesday aftern...[Read More] Experiencing Eye Flashes After Fundus Exam: Should You Worry?
Understanding Special Floaters: Symptoms and Concerns in Myopia
Special types of floaters? Hello, doctor. I have high myopia and floaters. Recently, I noticed that when I quickly move my right eye up and down against a bright background, I see a small dark round spot that quickly disappears, which is different from the usual floaters I see mo...
Dr. Gao Pilin Reply:
Hello James: This type of spot does not seem to be related to the macula. If there are no issues with the retina, you should feel reassured. This is likely harmless. It would be advisable to have a doctor check it again when possible. In Taiwan, at Puzi Hospital's ophthalmol...[Read More] Understanding Special Floaters: Symptoms and Concerns in Myopia
Understanding the Worsening of Floaters: Symptoms and Concerns Explained
Worsening of floaters? Dear Dr. Gao, I have congenital myopia. During a check-up in first grade, my left eye was diagnosed with -500 diopters of myopia, while my right eye was normal. However, due to long-term reliance on my right eye, it has now progressed to -1300 diopters, an...
Dr. Gao Pilin Reply:
Hello Sabina: 1. These are all phenomena associated with floaters. 2. This is also a manifestation of vitreous degeneration. 3. This may also be a sign of vitreous degeneration; however, it can also occur before a migraine attack. 4. No, it will not. 5. Vitreous opacities are a r...[Read More] Understanding the Worsening of Floaters: Symptoms and Concerns Explained
Understanding Vision Changes: Questions About Floaters and Eye Health
Questions about changes in vision? Hello, Doctor Gao! I have high myopia, with each eye measuring -7.00 diopters. Aside from experiencing floaters, I do not have any significant health issues. Six months ago, I visited two clinics for a fundus examination, and both doctors indica...
Dr. Gao Pilin Reply:
Hello, Qunqin: 1.2 may be visual illusions, which are not a concern. They are mostly physiological phenomena. You can refer to https://bit.ly/2VNsdxL. Snorkeling or diving should not pose any issues for you at this time, as there are no retinal problems, so there is no need for...[Read More] Understanding Vision Changes: Questions About Floaters and Eye Health
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 Flashing Lights in Dark Rooms: Is It Normal?
Entering a dark room from a bright area? Hello doctor, I recently noticed that when I enter a completely dark room from a bright area, my eyes sometimes experience a sensation of flashes or electrical discharges. However, I just had a fundus examination and optic nerve assessment...
Dr. Gao Pilin Reply:
Hello, Xiao Xiao: It may be due to vitreous traction causing discharge from the retina. If recent examinations showed no issues, you can monitor the situation yourself. However, if the condition worsens, you should seek medical attention for further evaluation. At Taiwan E-Hospit...[Read More] Understanding Flashing Lights in Dark Rooms: Is It Normal?
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 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 the Risks of LED and Laser Light Exposure to Eyes
Bright light exposure to the eyes? 1. Are the flashlight functions on current smartphones all LED lights? Could they potentially contain laser light? 2. If a smartphone flashlight shines into the eyes for about 5 seconds under normal conditions, will it cause damage to the surfa...
Dr. Gao Pilin Reply:
Hello, Xiao Qiang: 1. The mobile phone light is generally LED; LED is not a laser. 2. In a short duration, it should not cause harm, as no experiments have been conducted, and the intensity of light can vary. 3. No experiments have been conducted, and the light from a flashlight...[Read More] Understanding the Risks of LED and Laser Light Exposure to Eyes