Understanding Eye Flashes: Causes and Concerns for Computer Users
Flashes of light in the eyes? Hello, Doctor. I have had floaters since childhood, and recently, when I blink rapidly or squint hard, I sometimes see a horizontal black line at a specific location (similar to the black area after a camera flash), which lasts from a few minutes to ...
Dr. Gao Pilin Reply:
Hello Mr. Ching: If this is a recent occurrence, I recommend that you visit an ophthalmologist for an examination. Pupil dilation is not a concern and will not harm your eyes.[Read More] Understanding Eye Flashes: Causes and Concerns for Computer Users
Understanding Pupil Dilation and Its Impact on Vision Health
Pupil dilation parallax Hello, I visited the ophthalmology department at National Taiwan University over a year ago. At that time, I had a disparity in vision (I forgot the degree), with normal vision in my left eye and my right eye being myopic. The doctor prescribed long-acting...
Dr. Gao Pilin Reply:
Hello, Peng: 1. The changes in vision may be caused by myopia. If wearing appropriate glasses allows for clear vision, then there is no deterioration in vision; it is just that the prescription may have changed. 2. It should not be that severe. 3. Short-acting medications are...[Read More] Understanding Pupil Dilation and Its Impact on Vision Health
Why Is Pupil Dilation Necessary After Macular Pucker Surgery?
Why is it necessary to use mydriatic agents after macular pucker surgery? Hello, Director Gao: I underwent vitrectomy, macular pucker removal with gas tamponade, and intraocular laser surgery for my left eye due to macular pucker in mid-February. After the surgery, my attending p...
Dr. Gao Pilin Reply:
Hello, Blue Sky: After surgery, the pupils will be kept dilated for examination purposes. This also helps prevent the iris from adhering to the lens due to inflammation. As for the duration of the dilation, it will be determined by the attending physician.[Read More] Why Is Pupil Dilation Necessary After Macular Pucker Surgery?
Impact of Alternating Glasses with Different Focal Lengths on Eye Health
Focal length of glasses Hello, Doctor. I would like to ask you about my situation. Since I often read at close distances at home, I have a pair of glasses with a prescription of -2.50 diopters and a pupillary distance (PD) of 61 mm that I use regularly. When I go out, I use anoth...
Dr. Gao Pilin Reply:
Hello, the interpupillary distance (IPD) for near vision is generally smaller, and the prescription can also be reduced. Therefore, this exchange should not have any significant impact.[Read More] Impact of Alternating Glasses with Different Focal Lengths on Eye Health
Effects of Pupil-Dilating Eye Drops: Risks and Precautions
Effects of Mydriatic Eye Drops Hello, Dr. Gao! I previously visited an ophthalmologist for a fundus examination and was administered dilating eye drops. After returning home, I touched various items in my house. Could you please tell me if touching these items that may have been ...
Dr. Gao Pilin Reply:
Hello Ben So: You shouldn't worry; please rest assured.[Read More] Effects of Pupil-Dilating Eye Drops: Risks and Precautions
Understanding Retinal Checkups: Concerns and Safety for Eye Health
Retinal examination issues? Hello Doctor: Due to a retinal hole many years ago, I underwent retinal laser surgery. I have been regularly returning for dilated eye examinations. Between January and February 21 of this year, I had multiple visits (5 times) due to black shadows in m...
Dr. Gao Pilin Reply:
Hello, Xiaomi: 1. No, schoolchildren use dilating drops daily for myopia prevention. 2. The pupil may not constrict back, which can happen. 3. It depends on the strength, direction, and duration of the effect. It cannot be generalized. Therefore, if there is an injury, it should ...[Read More] Understanding Retinal Checkups: Concerns and Safety for Eye Health
Post-Operative Care and Concerns After Vitrectomy Surgery: A Comprehensive Guide
Post-retinal detachment surgery? Hello, doctor. I underwent a vitrectomy on my left eye four weeks ago and have some questions I would like to confirm with you. Post-surgery, I was prescribed "Alcon - Dexamethasone Eye Ointment" and "Yung Shing - Atropine Eye Drops...
Dr. Gao Pilin Reply:
Hello Ms. Chang: 1. The physician's treatment should be correct. 2. Please visit an ophthalmologist to find out the cause. 3. You should see an ophthalmologist for an examination to determine how to proceed. 4. Unless stated otherwise, just use it until your next app...[Read More] Post-Operative Care and Concerns After Vitrectomy Surgery: A Comprehensive Guide
Understanding Blurry Vision After Dilation: Is It True Myopia?
Blurred vision at near after dilation? The left eye has a higher degree of myopia, and both eyes were dilated with a mydriatic agent. Although the pupils appear enlarged, only the right eye experiences blurriness when looking at near objects, while the left eye, which has the gre...
Dr. Cai Wenyuan Reply:
It is possible; it is recommended to seek medical examination.[Read More] Understanding Blurry Vision After Dilation: Is It True Myopia?
Do Photochromic Lenses Affect Pupil Function Over Time?
Eyeglass prescription issues? Wearing photochromic lenses (such as progressive lenses) for an extended period may affect the efficiency of pupil dilation. It is said that photochromic lenses can reduce the amount of light entering the pupil, thereby decreasing the frequency of pu...
Dr. Gao Pilin Reply:
Hello, Cocoa: You don't need to worry about this; it will not affect the pupillary response.[Read More] Do Photochromic Lenses Affect Pupil Function Over Time?
Understanding Floaters and Light Flashes: When to Seek Help
Questions related to floaters? Hello Doctor: I discovered I had floaters in mid-October last year and went to an ophthalmology clinic for an examination. The doctor diagnosed it as degenerative floaters and said I only needed to be checked once a year. However, I later experience...
Dr. Gao Pilin Reply:
Hello: It is likely to be floaters; I recommend that you get it checked again. Pupil dilation does not necessarily cause glaucoma unless there is narrow-angle glaucoma. Since it has not occurred before, the likelihood of it happening afterward is low, so please don't worry.[Read More] Understanding Floaters and Light Flashes: When to Seek Help
Understanding Vision Compression in High Myopia: Is It Normal?
Visual field constriction Hello, doctor. I have high myopia (right eye -950, left eye -850). I noticed that when I turn on the light in a dark environment, my vision seems to zoom in and then returns to normal. I would like to ask if this is normal.
Dr. Gao Pilin Reply:
Hello Zoe: This may be a phenomenon caused by pupil constriction, where the transition from darkness to brightness causes the pupils to shrink. Once the constriction is complete, it will return to normal.[Read More] Understanding Vision Compression in High Myopia: Is It Normal?
Seeing Rainbow Halos Around Lights After Dilation: Is It Normal?
After dilation, seeing halos around streetlights? Hello, doctor. I have high myopia (left eye -1050, right eye -1200) and floaters. Due to the combination of high myopia and floaters, I regularly undergo retinal examinations. In the past two weeks, I have had two dilated eye exam...
Dr. He Jianxian Reply:
It is possible to experience this phenomenon after dilation; there is no need to worry as long as it resolves once the pupils return to normal. Dr. Ho Chien-Hsien, Ophthalmology Department, Nantou Hospital.[Read More] Seeing Rainbow Halos Around Lights After Dilation: Is It Normal?
Managing Eye Strain and Light Sensitivity: Tips for Relief and Care
Eye drops / Photophobia Hello, Doctor: 1. I use a tablet for at least 5 hours a day, so I often feel eye strain. I bought New Stasis eye drops to help relax my eyes, and I have been using them once every night before bed for over six months. Is this beneficial for my eyes, or co...
Dr. Gao Pilin Reply:
Hello: 1. It is recommended to apply once a day; the side effects should be minimal, but if there are no symptoms, it can be skipped. 2. Photophobia may be due to eye inflammation, dryness, fatigue, or dilated pupils. If treatment does not improve the condition, wearing sunglasse...[Read More] Managing Eye Strain and Light Sensitivity: Tips for Relief and Care
Understanding Vision Issues with New Glasses: Dizziness and Discomfort Explained
Eyeglass issues? Hello Dr. Tsai, I would like to ask about a recent issue I've been experiencing. I recently started wearing new glasses that have the same prescription as my old ones, but they include a blue light filter. However, when I look at things with my left eye th...
Dr. Cai Wenyuan Reply:
It may be necessary to measure the prescription for glasses and the pupillary distance.[Read More] Understanding Vision Issues with New Glasses: Dizziness and Discomfort Explained
Understanding Uveitis: Treatment Options and Management Strategies
How to treat iritis? I was hit in the left eye by a stone when I was young, and later underwent surgery to remove the blood clot. Everything has been fine for almost 40 years, but in the past six months, my left eye has frequently been swollen, painful, light-sensitive, and blurr...
Dr. Gao Pilin Reply:
Hello, A-Wen: 1. Simple iritis can be alleviated with steroid treatment; whether additional examinations are necessary depends on the physician's clinical diagnosis. 2. Sometimes, it may not be necessary to use mydriatics, depending on the inflammation status. 3. Occasionall...[Read More] Understanding Uveitis: Treatment Options and Management Strategies
Do You Need to Wait After Eye Dilation for Accurate Vision Tests?
Is there no need to wait after dilating the eyes for a vision test? Hello, last week I took my child to the clinic for a vision examination, and the doctor administered dilating drops. However, after administering the drops, the vision test was conducted immediately (checking up,...
Dr. Cai Wenyuan Reply:
The purpose of dilating the pupils depends on the specific situation.[Read More] Do You Need to Wait After Eye Dilation for Accurate Vision Tests?
Understanding Eye Issues: Floaters, Vision Changes, and Eye Health Concerns
Eye problems I have a myopia of -5.25 diopters and two years ago I started experiencing floaters. Recently, I noticed a different type of floater in my eyes (like many dark clouds moving towards the center), and sometimes it feels like a light switch turning on and off. After und...
Dr. Gao Pilin Reply:
Hello Tsai: 1.2. This is a phenomenon of vitreous degeneration. Please refer to: https://bit.ly/2xgUowc. 3. Pupil dilation is primarily used to examine the retina, but the presence of cataracts or glaucoma can be determined during routine examinations. If the physician did not me...[Read More] Understanding Eye Issues: Floaters, Vision Changes, and Eye Health Concerns
Understanding Rainbow Vision: Causes and Implications for Eye Health
Rainbow vision issues Hello, I have ocular hypertension and have been using Combigan eye drops. I have undergone two visual field tests in the past six months (the last one was in early September), and my doctor informed me that my condition is stable and there is no diagnosis of...
Dr. Gao Pilin Reply:
Hello: Halo vision is just a symptom; sometimes corneal edema and corneal deposits can cause halos. Astigmatism can also create glare, which may not be colorful. The halo appears around the light source, so there should be as many halos as there are light sources. During the day,...[Read More] Understanding Rainbow Vision: Causes and Implications for Eye Health
Understanding the Accuracy of Computerized Eye Exams for Children
The accuracy issues of computer-based vision testing? Hello Doctor, thank you for your response! I took my child to the ophthalmology clinic for an examination, where they performed a fundus examination, OCT, and slit lamp examination. I informed the clinic doctor about my child&...
Dr. Gao Pilin Reply:
Hello, regarding your questions: 1. If the pupils are dilated and do not respond to light, there is no need to administer drops. 2. The refractive error is quite similar; the equivalent spherical power calculated from the right eye +50 astigmatism -250 and -25 astigmatism -200 is...[Read More] Understanding the Accuracy of Computerized Eye Exams for Children
Understanding Amblyopia: Symptoms, Diagnosis, and Treatment Options for Children
Amblyopia issues? Hello, Doctor. Thank you for your patient responses to my questions! I previously inquired about my child's eye issues, and I would like to ask you a few more questions. Hello, Doctor. Thank you for your prompt reply last night! I would like to ask you a f...
Dr. Gao Pilin Reply:
Hello, regarding your inquiries: 1. A corneal topography can be performed, but there is mild astigmatism, which is less pronounced. 2. Previously, vision was between 0.9 and 1.0, and there is still a possibility of recovery, but it requires wearing the correct prescription glasse...[Read More] Understanding Amblyopia: Symptoms, Diagnosis, and Treatment Options for Children