Understanding Zigzag Flashing Lights: Eye Health Insights
Zigzag flashes Hello doctor, I would like to ask, there have been several instances when I walk from sunlight into a room and then look at my phone, I experience a darkening effect, followed by flickering in my vision, and I am unable to focus. The more I try to see details, the ...
Dr. Gao Pilin Reply:
Hello: Based on your description, this situation may be caused by an adaptation issue with your eyes. When you are exposed to bright sunlight outdoors for a period of time, your pupils naturally constrict to regulate the amount of light entering the eyes, protecting the retina fr...[Read More] Understanding Zigzag Flashing Lights: Eye Health Insights
Impact of Direct Flash Exposure on Eye Health: Risks and Concerns
The eyes were directly exposed to a flash of light? On April 25th at 5 PM, I used my phone's selfie function to take a close-up photo of my left eye (within 10 to 15 centimeters) and forgot to turn off the flash. The flash directly illuminated my eye, causing my vision to go...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.[Read More] Impact of Direct Flash Exposure on Eye Health: Risks and Concerns
Does Dominant Eye Affect Pupil Size? Understanding Vision and Eye Health
Does habitual eye use affect pupil size? Hello, doctor. Recently, I have experienced side effects from the eye drops prescribed by my ophthalmologist, including miosis (constricted pupils). The doctor advised me to follow up with a neurologist, and while there are no issues with ...
Dr. Gao Pilin Reply:
Hello: It is normal for there to be slight differences in pupil size; however, if you notice a significant difference, it is advisable to consult an ophthalmologist for a thorough examination of your eyes to rule out any underlying issues. Regarding the issue of your right eye ha...[Read More] Does Dominant Eye Affect Pupil Size? Understanding Vision and Eye Health
Understanding Acute Conjunctivitis with Keratitis: Symptoms and Aftermath
Acute conjunctivitis with keratitis Hello, Doctor! I have a history of dry eye syndrome, but this time I developed acute conjunctivitis with keratitis in my left eye. I have been using eye drops for a week. The keratitis is located only at the outer edge of the pupil on the left ...
Dr. Cai Wenyuan Reply:
It is possible.[Read More] Understanding Acute Conjunctivitis with Keratitis: Symptoms and Aftermath
Understanding Strabismus: Insights from a Patient with Cervical Dystonia
Is it strabismus? Hello doctor, I have a condition known as cervical dystonia, which affects the muscles in my neck, specifically on the right side. I developed this condition when I was 12 years old; prior to that, everything was normal. As a result, my neck tilts upward to the ...
Dr. Cai Wenyuan Reply:
It is recommended to visit a medical center for examination.[Read More] Understanding Strabismus: Insights from a Patient with Cervical Dystonia
Understanding Retinal Laser Treatment and Its Effects on High Myopia
Retinal tear laser treatment Dear Dr. Gao, I have moderate to high myopia, with my left eye at -7.50 diopters and my right eye at -6.50 diopters. During a fundus examination last August, a small retinal tear was discovered in my right eye. The ophthalmologist immediately arrange...
Dr. Gao Pilin Reply:
Hello: 1. The water wave patterns and shadows in the right eye during the dark adaptation process may be due to localized tissue damage caused by retinal tear laser treatment. Laser treatment can cause changes in the local retinal tissue, but in most cases, these changes have lit...[Read More] Understanding Retinal Laser Treatment and Its Effects on High Myopia
Understanding Unusual Black Spots in Vision: Beyond Floaters and Eye Aging
Seeing black spots that are different from floaters? Hello, doctor. I do not have myopia, but I have been experiencing floaters for about ten years, and dry eye syndrome for nearly the same duration. A few years ago, a doctor mentioned that I have congenital cataracts. Recently, ...
Dr. Gao Pilin Reply:
Hello: The symptoms you described may be related to various eye issues, including vitreous floaters, retinal diseases, and lens problems, among others. Since you have been regularly undergoing fundus examinations at a major hospital and your doctor has confirmed that the structur...[Read More] Understanding Unusual Black Spots in Vision: Beyond Floaters and Eye Aging
Do Atropine Eye Drops Increase Risk of Eye Diseases?
Do mydriatic agents cause eye diseases? Hello, doctor. Last December, after my ophthalmology appointment, I have been intermittently using atropine 0.5% eye drops as instructed by my doctor. However, I have the following concerns: (I am also taking lutein supplements) 1. Does the...
Dr. Gao Pilin Reply:
Hello: 1. The relationship between the use of dilating drops and the increased risk of macular degeneration or cataracts remains controversial. Some studies suggest that long-term use of dilating agents may be associated with an increased risk of macular degeneration and cataract...[Read More] Do Atropine Eye Drops Increase Risk of Eye Diseases?
Uneven Pupil Size: Causes and Concerns for Eye Health
Unequal pupil size? Hello, Doctor. I have high myopia in both eyes, over 600 degrees, which is considered high myopia. Recently, I noticed that my pupils are not the same size when I wake up in the morning; the left pupil appears larger. Sometimes, my left eye also seems a bit bl...
Dr. Liang Ce Reply:
It is advisable to consult with your attending physician regarding the above issues. Thank you, and wishing you good health.[Read More] Uneven Pupil Size: Causes and Concerns for Eye Health
Common Questions About Myopia Laser Surgery: What You Need to Know
Questions about myopia laser treatment? Hello, Doctor. I previously underwent some preoperative evaluations for myopia laser surgery and have a few questions to ask you: 1. Is it necessary to measure nighttime pupil size in a very dark room? During my examination, some measurem...
Dr. Gao Pilin Reply:
Hello: 1. When assessing night vision, it is not necessary to be in complete darkness; an appropriately dim environment is sufficient. The size of the pupil in total darkness is not particularly meaningful. 2. Once the pupil reaches a certain size, it will not enlarge further and...[Read More] Common Questions About Myopia Laser Surgery: What You Need to Know
Understanding Myopia Correction: Key Questions for Eye Health at 45
Correction of myopia Dear Dr. Gao, Hello. Recently, I went to get new glasses due to wear on my old pair and found the following refraction data: 7 years ago Now Left Right Left Right Myopia 650 675 ...
Dr. Gao Pilin Reply:
Hello: (1) At the age of 45, near vision gradually declines, leading to presbyopia. Therefore, the need for full correction of myopia depends on individual visual requirements and daily activities. If you need to focus on distant vision for extended periods, such as while driving...[Read More] Understanding Myopia Correction: Key Questions for Eye Health at 45
Understanding Retinal Degeneration and Floaters: Your Essential Guide
Retinal degeneration Hello, doctor. I have over 600 degrees of myopia and floaters. Yesterday, I underwent a dilated eye exam, and the doctor mentioned that there is degeneration around my retina, which appears white, but he did not see any holes and said that I do not need laser...
Dr. Gao Pilin Reply:
Hello: 1. After dilation, floaters may become more noticeable because the enlarged pupil allows more light to enter the eye, making the floaters easier to detect. 2. You can monitor changes in the shape, size, quantity, and movement patterns of the floaters. If there are signific...[Read More] Understanding Retinal Degeneration and Floaters: Your Essential Guide
Understanding Post-Dilation Symptoms: Is Dizziness Normal After Eye Exam?
Pupil dilation examination Hello, Doctor. I had a dilated eye exam around 3 PM today. The doctor mentioned that I might have floaters after seeing some dark spots, but after the examination, he said there were no signs of retinal tears and that I should just monitor the situation...
Dr. Gao Pilin Reply:
Hello: Regarding the sudden feeling of dizziness you mentioned, this may be due to your pupils being dilated by the mydriatic agent, which increases the amount of light entering your eyes, leading to eye fatigue and temporary visual adaptation issues. Typically, this sensation of...[Read More] Understanding Post-Dilation Symptoms: Is Dizziness Normal After Eye Exam?
Understanding Retinopathy of Prematurity: Symptoms and Concerns Explained
Retinopathy of Prematurity (ROP) 1. I have retinopathy of prematurity, amblyopia (one eye 0.3, one eye no light perception), high myopia (over 500 degrees), high astigmatism, nystagmus, and visual field loss. For the past few months, I have been experiencing curved yellow-green f...
Dr. He Jianxian Reply:
1. I cannot understand your description; please consult directly at the ophthalmology outpatient clinic. 2. The visual condition associated with nystagmus is different from that of the general population; what you are seeing may indeed be caused by the nystagmus, but I cannot be...[Read More] Understanding Retinopathy of Prematurity: Symptoms and Concerns Explained
Post-Retinal Laser Treatment Care: Essential Tips and Common Concerns
Post-operative care after retinal laser treatment? Hello, Doctor. I underwent retinal laser treatment on both eyes at the end of January and returned for a follow-up in late February. The doctor informed me that the treated areas were stable, which relieved my anxiety. The doctor...
Dr. Gao Pilin Reply:
Hello: 1. The formation of retinal tears is usually caused by uneven traction within the eye, with the most common reason being vitreous contraction and thickening of the retinal membrane due to aging. Other causes may include external trauma or impact to the eye, ocular diseases...[Read More] Post-Retinal Laser Treatment Care: Essential Tips and Common Concerns
Understanding Eye Growths: Are They Serious or Congenital?
There are polyps in the eyeball? There is a growth resembling a polyp in the lower left corner of my left eye, near the side of my ear. As far as I can remember, it has always been there since I was alive. It currently does not cover the pupil but is attached to an area similar t...
Dr. Gao Pilin Reply:
Hello: This may be a subconjunctival nodule, commonly referred to as a "conjunctival cyst," which is often found in the upper or lower conjunctiva or on the inner or outer sides. Some individuals are born with them, while others may develop them due to eye irritation or...[Read More] Understanding Eye Growths: Are They Serious or Congenital?
Understanding Presbyopia: Common Questions and Clarifications
Questions about presbyopia? Hello, Doctor. Recently, I seem to be experiencing some presbyopia, and I've looked up some information online, but there are still some areas I'm unclear about, so I would like to consult you, Dr. Gao! 1. Is it true that presbyopia is defin...
Dr. Gao Pilin Reply:
Hello: 1. The onset of presbyopia varies from person to person, but generally speaking, it may be a symptom of presbyopia when one experiences blurriness while looking at nearby objects and needs to move them away from the eyes to see clearly. The distance at which objects need t...[Read More] Understanding Presbyopia: Common Questions and Clarifications
Dealing with Light Sensitivity After Pupil Dilation: What You Should Know
Pupil-dilating agents cause photophobia? Hello Doctor, I had a check-up for floaters today. After the appointment, while walking outside, I was wearing a hoodie and holding a notebook to shield myself from the sun, but I still found it difficult to open my eyes due to the brightn...
Dr. Gao Pilin Reply:
Hello: Short-term exposure to bright light usually does not cause harm to the eyes. Once the pupils constrict, it will feel more comfortable, so please don't worry.[Read More] Dealing with Light Sensitivity After Pupil Dilation: What You Should Know
Understanding the Accuracy of Fundus Exams: Common Concerns
Questions about fundus examination? Hello, Doctor Gao. Today, I went to an ophthalmology clinic near my hometown for a fundus examination. They used a direct ophthalmoscope and a lens for dilation, and I waited for half an hour. However, I feel that my pupils did not fully dilate...
Dr. Gao Pilin Reply:
Hello: If the doctor has examined you and found no issues, you should be able to feel reassured.[Read More] Understanding the Accuracy of Fundus Exams: Common Concerns
Can Prolonged Use of Dilating Drops Cause Permanent Pupil Dilation?
Will dilating eye drops cause the pupils to enlarge and not return to their normal size? 1. Prolonged use of mydriatic agents can indeed lead to a situation where the pupils remain dilated and do not return to their normal size. This is known as persistent mydriasis. 2. Suddenly...
Dr. Cai Wenyuan Reply:
That's not the case.[Read More] Can Prolonged Use of Dilating Drops Cause Permanent Pupil Dilation?