Understanding Hyperopia and Amblyopia: Key Questions Answered
Hyperopia and Amblyopia Glasses Prescription Issues Thank you for your detailed response, which has clarified many of my doubts. I would like to ask further: 1. You mentioned that the refraction after dilation is the degree of relaxation of the ciliary muscle. Can it be understo...
Dr. Gao Pilin Reply:
Hello Mr. Chang: 1. Yes, under natural conditions, the ciliary muscle is not completely relaxed. 2. Squinting can improve clarity when vision is unclear, regardless of whether one has hyperopia, myopia, or astigmatism. 3. Hyperopia and myopia are relative conditions and canno...[Read More] Understanding Hyperopia and Amblyopia: Key Questions Answered
Understanding Retinal Detachment and Trabeculectomy: A Patient's Journey
Retinal detachment surgery and trabeculectomy? Hello Doctor, I have high myopia with -9.50 in my left eye and -14.50 in my right eye. I have a history of iritis in my right eye. In February 2019, due to persistent elevated intraocular pressure in both eyes, the doctor decided to ...
Dr. Gao Pilin Reply:
Hello Mr. He: 1. Intraocular pressure may gradually decrease; it is not uncommon to experience elevated eye pressure postoperatively. 2. An evaluation is necessary to determine the appropriate management. 3. Initially, you can engage in light activities such as walking, and gradu...[Read More] Understanding Retinal Detachment and Trabeculectomy: A Patient's Journey
Is My Eye Condition a Sign of Tractional Retinal Detachment?
Is my condition a precursor to tractional retinal detachment? Hello Doctor: I used to have a habit of improperly massaging my eyeballs, but I have since stopped. I already have floaters and high myopia. Recently, I started experiencing a flickering sensation in my entire field of...
Dr. Gao Pilin Reply:
Hello, your situation is similar to flashes caused by vitreous pulling on the retina. If the doctor has examined you and found no issues, you can feel reassured, as any tears or detachments should be detectable during the examination.[Read More] Is My Eye Condition a Sign of Tractional Retinal Detachment?
Understanding Mild Blurriness in Vision: Causes and Solutions
Slightly blurred vision? Hello, I have a myopia of 500 degrees, which has remained stable for nearly 20 years. I previously wore scratched lenses for two years, and when I don’t wear glasses, I experience a slight foggy sensation, but I'm not sure if it's due to blurrin...
Dr. Gao Pilin Reply:
Hello Tim: If wearing glasses eliminates the foggy sensation, it indicates that the fog is caused by myopia. When wearing glasses, myopia is corrected, and the retina receives a clear image, which resolves the fog. There should be no issues.[Read More] Understanding Mild Blurriness in Vision: Causes and Solutions
Understanding Night Vision Issues: Why Does Darkness Affect My Eyes?
After turning off the lights, there is a particularly dark spot in my vision? Both eyes have myopia over 500 degrees. When the lights are on, my vision is normal, but at night, after turning off the lights, there is a particularly dark area in my vision, and its size has increase...
Dr. Gao Pilin Reply:
Hello: It is possible that the dark area is related to a region with weaker scotopic vision. It may also be a normal retinal phenomenon, and since it recovers quickly, there should be no need for concern. However, if you are still worried, it would be advisable to consult a retin...[Read More] Understanding Night Vision Issues: Why Does Darkness Affect My Eyes?
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 with 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 of ...
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, as a physician, cannot determine the exact cause. Regarding the changes in bright...[Read More] Understanding Visual Disturbances: Flickering and Brightness Changes Explained
Understanding Eye Flashes: Causes and Concerns for Retinal Health
Flashes of light in the eyes? I have floaters and retinal degeneration. A few days ago, while trying to swat a mosquito, I noticed flashes in the corner of my eye when moving my eyeball. However, during the day and at night, when my eyes are closed or when I look at things, there...
Dr. He Jianxian Reply:
This phenomenon, commonly referred to as "photopsia," represents the tension created between the vitreous body and the retina during rapid eye movements. If these flashes occur too frequently, it is essential to undergo a dilated eye examination to prevent any potential...[Read More] Understanding Eye Flashes: Causes and Concerns for Retinal Health
Why Is My Eye Blood Vessel Still Visible After Allergic Conjunctivitis?
Persistent red eye? Hello Doctor, last month I underwent laser treatment for a retinal tear, and I also experienced an outbreak of allergic conjunctivitis. In my right eye, there is a prominent blood vessel that extends from the edge of the eye to near the cornea, and it appears ...
Dr. Gao Pilin Reply:
Hello Ms. Wang: Blood vessels do not form suddenly and become this prominent. They likely existed before but have become more noticeable due to factors such as inflammation. Once the inflammation resolves, they may shrink and become less prominent, but they should still remain.[Read More] Why Is My Eye Blood Vessel Still Visible After Allergic Conjunctivitis?
Understanding Dark Areas in Retinal Fundus Photography
Why are some areas of the retina in fundus photography very dark? Hello, doctor. Please see the illustration at the following URL: https://i.imgur.com/N6OCSvh.gif. I had a fundus photography done at the hospital, but the colors of the fundus are somewhat orange in some areas and ...
Dr. Liang Ce Reply:
I recommend that you 1. discuss the above situation further with your attending physician to determine if any additional examinations are necessary. 2. You may also consider consulting at an ophthalmology outpatient clinic at a medical center or large hospital. Thank you, and wis...[Read More] Understanding Dark Areas in Retinal Fundus Photography
Understanding Brief Blackouts in Vision: Possible Causes and Next Steps
A momentary flash of darkness in the field of vision? Recently, I have been experiencing brief moments of seeing black flashes in my vision, as if the surrounding lights are turning off and then back on. This happens about 10 times a day, and each episode lasts for a very short d...
Dr. Cai Wenyuan Reply:
Monitor the situation, and if symptoms persist, seek medical attention.[Read More] Understanding Brief Blackouts in Vision: Possible Causes and Next Steps
Understanding Retinal Issues After Eye Trauma: Symptoms and Solutions
Retinal issues Hello doctor, two days ago I was hit in the eye by a dodgeball (quite hard). At that moment, my vision was reduced to a small blurry area in the center. After a few minutes, I noticed a shadow in the lower part of my vision, which eventually went away. However, I w...
Dr. Gao Pilin Reply:
Hello, the redness in your eye may be due to a subconjunctival hemorrhage, and it will take time for the blood to be reabsorbed before the redness resolves. This may take a week or longer. The shadow you are seeing could be due to changes in the vitreous caused by trauma. If the ...[Read More] Understanding Retinal Issues After Eye Trauma: Symptoms and Solutions
Understanding Pseudomyopia: Causes, Symptoms, and Eye Health Concerns
Pseudomyopia Hello, I would like to ask if high degrees of pseudomyopia make it easier for myopia to increase? Sometimes the degree before dilation is 600 or 700, but after dilation, it does not exceed 550 (previously 350, then 450, and later over 500). Is an increase of 50 to 75...
Dr. Gao Pilin Reply:
Hello, Xin: It is possible for the prescription to suddenly increase by 50 to 75 diopters within six months during the senior year of high school, and sometimes it can increase by 100 diopters in a year. Rapid changes can occur during periods of growth. If the eyeball degenerates...[Read More] Understanding Pseudomyopia: Causes, Symptoms, and Eye Health Concerns
Understanding Vitreous Detachment: Common Concerns and Eye Health Tips
Some questions regarding posterior vitreous detachment? Hello Doctor, my eyesight is approximately -2.00 diopters in both eyes. Currently, I have been experiencing posterior vitreous detachment in my left eye for about four months. The frequency of flashes has decreased since the...
Dr. He Jianxian Reply:
1. Once the vitreous has completely detached from the retina, the traction on the retina essentially disappears. As long as no retinal tears occurred during the process, the retina should not become more fragile, and engaging in regular strength training should generally not pose...[Read More] Understanding Vitreous Detachment: Common Concerns and Eye Health Tips
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
Understanding the Differences Between Gas and Silicone Oil Injection in Eye Surgery
Gas injection for retinal detachment? Hello, doctor. I would like to ask about traumatic cataracts and retinal tears caused by injury. I have undergone one traditional surgery and one minimally invasive surgery. Initially, the doctor explained that blood clots would be cleared fr...
Dr. He Jianxian Reply:
If injecting gas can solve the problem, it usually indicates that the issue is less severe, as silicone oil injection is typically reserved as a last resort. This is for your reference. Dr. Jian-Hsien Ho, Department of Ophthalmology, Nantou Hospital.[Read More] Understanding the Differences Between Gas and Silicone Oil Injection in Eye Surgery
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
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
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 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