Understanding Visual Disturbances: Flickering and Brightness Changes Explained
There is a slight shaking phenomenon around objects when looking at them? Hello Doctor, I am 43 years old and have myopia of approximately -6.50/-8.50. 1. Since 2021, I have noticed a slight shaking sensation on the outer side of my eyes when looking at things (there is a feeling...
Dr. He Jianxian Reply:
If all examinations have been completed, you should feel reassured. The flickering sensation in your peripheral vision may be caused by vitreous degeneration, but this is merely a hypothesis, and I am unsure of the actual cause. As for the changes in the brightness of light sourc...[Read More] Understanding Visual Disturbances: Flickering and Brightness Changes Explained
Can Visual Field Loss Occur with Photopsia? Understanding Eye Health
Is it possible for vision loss to occur in the visual field area affected by photophobia? Hello Doctor: Recently, I have noticed a small area in my monocular visual field where I see light spots similar to photopsia when I close my eyes. Given that I am at an age where ocular fun...
Dr. He Jianxian Reply:
To confirm your issue, you only need to schedule a standard visual field test. It is recommended that you arrange this at a hospital. Dr. He Jianxian, Ophthalmology Department, Nantou Hospital.[Read More] Can Visual Field Loss Occur with Photopsia? Understanding Eye Health
Understanding Eye Flashes: Causes and Concerns for Your Vision
There is a sensation of flashes in the eyes? Hello Doctor, I have myopia with -5.00 in my left eye and -4.00 in my right eye, along with astigmatism of -3.00 in my left eye and -4.00 in my right eye. I would like to ask about sudden flashes of light that occur when I open my eyes...
Dr. Gao Pilin Reply:
Hello, Bai Bai: Flashes may be caused by the vitreous pulling on the retina. However, this pulling usually does not result in retinal tears, and if the examination shows no issues, you can simply monitor the situation. The shadows caused by floaters and those from vitreous degene...[Read More] Understanding Eye Flashes: Causes and Concerns for Your Vision
Improving Pseudomyopia in Adults: Tips for Eye Health and Comfort
Improvement of Adult Pseudomyopia Hello, doctor. I am 27 years old and previously had no myopia. At the age of 25, I was diagnosed with 50 degrees and 100 degrees of myopia. Recently, my vision has become increasingly unclear, and I have been experiencing pain around the bones of...
Dr. Gao Pilin Reply:
Hello Judy: 1. Pseudomyopia should decrease after adequate rest. Minimize the use of electronic devices, maintain an appropriate distance, and use larger screens and fonts on mobile devices. However, using an excessively large computer monitor may cause eye discomfort. You can ...[Read More] Improving Pseudomyopia in Adults: Tips for Eye Health and Comfort
Understanding Blurry Vision After Napping: Causes and Solutions
Visual haze or fog in front of the eyes? Hello, I often take naps on my desk during lunch breaks, and sometimes I might press on my eyeballs, although I'm not sure if I actually do. After waking up and putting on my glasses, my entire field of vision appears foggy and somewh...
Dr. Gao Pilin Reply:
Hello, Apple: Waking up with blurry vision after sleeping on your stomach is a common experience for many, especially during school days after a nap. This occurs because the pressure on the cornea while sleeping can lead to astigmatism, which resolves as the cornea gradually reco...[Read More] Understanding Blurry Vision After Napping: Causes and Solutions
Is Eye Pain a Sign of an Eye Disease? Understanding Your Symptoms
Is it considered an eye disease? Hello Doctor: Last time I asked you about the pain in the upper inner corner of my right eye, and you mentioned it might be related to the trigeminal nerve. Besides the neurological issues, I would like to ask if I should go to a larger hospital f...
Dr. Gao Pilin Reply:
Hello, Miss Hsieh: You may want to first visit a neurologist, as this may not be an eye-related issue. If you are still concerned, you can certainly make an appointment with the ophthalmology department at a major hospital to rule out any problems around the eyes.[Read More] Is Eye Pain a Sign of an Eye Disease? Understanding Your Symptoms
Understanding Blurry Vision: Causes and Concerns for Eye Health
Blurred vision Hello, I have myopia of -3.50 diopters and astigmatism ranging from -2.75 to over -3.00 diopters (I’m not sure why the astigmatism measurements sometimes vary; isn’t the degree of astigmatism supposed to remain relatively stable?). I have had floaters since childho...
Dr. Gao Pilin Reply:
Hello, Apple: This could be a phenomenon caused by vitreous degeneration. When the posterior vitreous detaches, fluid can enter the cavity, leading to temporary blurriness. It should return to normal afterward.[Read More] Understanding Blurry Vision: Causes and Concerns for Eye Health
Can I Get Bifocals with Different Prescriptions for Each Eye?
Can reading glasses be prescribed with one lens for intermediate distance and the other for near distance? Hello, Director Gao! I completed cataract surgery earlier this year. My left eye has no residual prescription (for watching TV and distance vision), while my right eye has a...
Dr. Gao Pilin Reply:
Hello Greg: If you can adapt, this is acceptable. You can try buying a pair of +1.50 glasses first.[Read More] Can I Get Bifocals with Different Prescriptions for Each Eye?
Understanding Occasional Shadows in Vision: Causes and Concerns
Occasionally, small shadows may appear in the field of vision? Hello Doctor, as mentioned in the subject, I have recently noticed small shadows appearing in my line of sight, but they disappear immediately when I focus or move my eyes. They do not persist for a long time. What co...
Dr. Gao Pilin Reply:
Hello, Xiang: This is called floaters. There is no specific treatment for this condition, but it may change over time. The floaters may still be present, while the flashes may gradually improve.[Read More] Understanding Occasional Shadows in Vision: Causes and Concerns
Understanding Causes of Unstable Vision Despite Corrective Lenses
Unstable vision Hello, Doctor. If the prescription for my glasses is adequate and there are no changes in the fundus, I would like to ask what could be causing the instability in my corrected vision. During the first and second grades of elementary school, my vision was measured ...
Dr. Gao Pilin Reply:
Hello Shinna: Amblyopia can lead to unstable vision. The phenomenon of crowding in amblyopia is similar to the situation you described. The letter C is likely more difficult than the letter E; the letter E has two openings and only four orientations, while the letter C has eight ...[Read More] Understanding Causes of Unstable Vision Despite Corrective Lenses
Understanding Visual Disturbances: Causes and Solutions for Eye Conditions
Eyes and Light Hello, I have issues with nystagmus and retinopathy of prematurity, as well as high myopia and astigmatism. When looking at certain computer screens or projected images, I sometimes perceive a slight flicker in the light, and the text appears to shake. Occasionally...
Dr. Gao Pilin Reply:
Hello, Xin: From your recent questions, it seems that you are quite concerned about your eye issues. However, we cannot provide a response without a proper examination. I recommend that you visit a hospital with an ophthalmology department for a thorough evaluation and consult wi...[Read More] Understanding Visual Disturbances: Causes and Solutions for Eye Conditions
Understanding Temporary Blurry Vision: Causes and Concerns
Visual haze or fog in front of the eyes? Hello, I am not sure if it is due to excessive eye strain, but occasionally I experience a brief white haze in one eye. It disappears after blinking a few times or after a short while. Doctor, what could this issue be? Is it serious? Thank...
Dr. Gao Pilin Reply:
Hello Jam: This white haze may be caused by dry eyes or secretions. Blink and take a break to allow your tears to replenish; it should improve. However, if it persists, it would be best to have it checked.[Read More] Understanding Temporary Blurry Vision: Causes and Concerns
Understanding Nystagmus: Causes, Effects, and Management in Vision Health
Nystagmus 1. Can congenital nystagmus worsen over time? If so, what could be the possible reasons? Would it lead to further deterioration of vision? 2. It is said that individuals with congenital nystagmus do not experience oscillopsia when looking at objects, but why do they per...
Dr. Gao Pilin Reply:
Hello, Xin: 1. It should not happen. 2. It should still happen. 3. It is uncertain; it depends on whether there are issues with the retina or optic nerve. 4. Blindness is not related to refractive error; both myopia and hyperopia can lead to it. 5. This is how refractiv...[Read More] Understanding Nystagmus: Causes, Effects, and Management in Vision Health
Understanding Visual Impairment: Key Questions and Insights on Eye Health
Visual impairment Hello, I saw the standards for visual impairment online, and there are two criteria for mild visual field loss: 1. For the central 24-degree program on the automated perimetry, an average defect greater than 25 dB (exclusive) is required. 2. For the central 30-d...
Dr. Gao Pilin Reply:
Hello, S: Currently, the central 30 degrees should be used as a reference for visual field defects, which are not easily noticeable without examination. Retinal degeneration can lead to visual field loss, typically more severe in areas with light, which will appear clearer. When ...[Read More] Understanding Visual Impairment: Key Questions and Insights on Eye Health
When to Wear Glasses for Amblyopia and Myopia: A Guide
The timing for prescribing glasses for a patient with unilateral amblyopia and myopia in the other eye? When I was around 10 years old, in the fifth grade, a school vision screening revealed a vision problem. After consulting an ophthalmologist, I was diagnosed with amblyopia. At...
Dr. Liang Ce Reply:
It is recommended that you visit an ophthalmology clinic for consultation to determine if further examinations are necessary. Thank you, and wish you good health![Read More] When to Wear Glasses for Amblyopia and Myopia: A Guide
Can Laser Eye Surgery Eliminate Nighttime Glare for Myopia?
Glare, myopic laser surgery? Hello, Doctor: I have myopia of -5.50 and astigmatism of -2.50 in my left eye, and myopia of -3.50 and astigmatism of -1.50 in my right eye. I am experiencing issues with nighttime glare. I would like to know if laser vision correction can eliminate n...
Dr. Gao Pilin Reply:
Good morning. Nighttime glare can have various causes; if it is due to astigmatism, laser treatment can eliminate it. It is advisable to visit an ophthalmologist to clarify the cause of the glare.[Read More] Can Laser Eye Surgery Eliminate Nighttime Glare for Myopia?
Understanding Irreversible Pupil Issues and Their Impact on Vision
Pupil issues The left eye's unaided vision is 0.1, and the best corrected vision is 0.4. The patient experiences blurriness when viewing near objects due to an inability to accommodate the pupil, and also has photophobia during the day. The condition of pupil dilation is irr...
Dr. Liang Ce Reply:
It is recommended that you visit an ophthalmology clinic for consultation to determine if further examinations are necessary. Thank you, and wish you good health![Read More] Understanding Irreversible Pupil Issues and Their Impact on Vision
Understanding Subcapsular Cataracts: Treatment Options and Vision Concerns
Subcapsular cataract 1. The difference between subcapsular cataract and posterior capsule opacification (secondary cataract) is that subcapsular cataract occurs beneath the lens capsule, affecting vision directly, while posterior capsule opacification is a condition that can deve...
Dr. Gao Pilin Reply:
Hello, Zhiqiang: Secondary cataract refers to the condition where the capsule of the lens becomes cloudy after cataract surgery. This can be treated with laser therapy. Subcapsular cataract is a type of cataract that requires surgical intervention for treatment. Replacing the len...[Read More] Understanding Subcapsular Cataracts: Treatment Options and Vision Concerns
Understanding Dark Yellow Vision in High Myopia: Causes and Solutions
The left eye sees things as dark yellow? I am 25 years old and have high myopia in both eyes: right eye: -950, left eye: -700 (with astigmatism of -2.00 to -2.50 in both eyes). Both eyes have undergone retinal laser treatment for holes. My left eye sees things very dimly and with...
Dr. Gao Pilin Reply:
Hello Krystal: It may be an issue with the retinal photoreceptor cells, and it might be necessary to perform an electroretinogram to assess the functionality of the photoreceptor cells.[Read More] Understanding Dark Yellow Vision in High Myopia: Causes and Solutions
Understanding Sudden Blackouts in Vision: Causes and Concerns
Seeing black flashes in front of the eyes? Hello Doctor, a few days ago while having dinner, I suddenly saw a flash of darkness in front of my eyes, like the feeling of a light turning off, which lasted for less than a second. I found some similar issues in the forum; some mentio...
Dr. Gao Pilin Reply:
Hello, OO: It could possibly be amaurosis fugax, which is a symptom related to blood vessels. It may be caused by retinal artery sclerosis or carotid artery stenosis. Sometimes, low blood pressure can also lead to such phenomena. I recommend that you consult an ophthalmologist fo...[Read More] Understanding Sudden Blackouts in Vision: Causes and Concerns