Persistent Double Vision After Corneal Thickness Measurement: What to Do?
A problem that has been troubling me for a while? On March 24th, I went to Chang Gung Memorial Hospital for a corneal thickness measurement. Since then, I have been experiencing persistent double vision, which occurs intermittently. When I look at my phone or computer, the text s...
Dr. Gao Pilin Reply:
Hello, Berry: First of all, corneal thickness measurement will not cause this phenomenon. Your situation seems more related to ciliary muscle issues; when the ciliary muscle is fatigued, this kind of phenomenon can occur. You might try the 20-20-20 rule for eye care: every 20 min...[Read More] Persistent Double Vision After Corneal Thickness Measurement: What to Do?
How to Choose Glasses for High Hyperopia and Amblyopia in One Eye
For the right eye with high hyperopia and amblyopia, how should glasses be prescribed for distance and near vision? Dear Dr. Gao, I am 57 years old and usually do not wear glasses. I have high hyperopia with amblyopia in my right eye, and when the prescription is fully corrected...
Dr. Gao Pilin Reply:
Hello Mr. Chuang: Typically, hyperopia does not increase with age; rather, during youth, the accommodative ability is strong, and the ciliary muscle reduces your hyperopia. After middle age, the accommodative ability of the ciliary muscle declines, which is why hyperopia becomes ...[Read More] How to Choose Glasses for High Hyperopia and Amblyopia in One Eye
Understanding Hyperopia and Astigmatism Correction in Children
Correction of Hyperopia and Astigmatism Hello, doctor. The child underwent a dilated eye exam and both eyes were found to have hyperopia of +2.00 diopters and astigmatism of -1.75 diopters. The uncorrected visual acuity was approximately 0.8 in the left eye and 0.6 in the right e...
Dr. Gao Pilin Reply:
Hello, Mr. Feng: For individuals with hyperopia (farsightedness), the ciliary muscles must work harder to focus on objects, which means that without corrective lenses, the eyes are in a strained state. When wearing hyperopic glasses, the ciliary muscles should relax. If they ar...[Read More] Understanding Hyperopia and Astigmatism Correction in Children
Blurred Vision in Teens: Causes and When to See a Doctor
Blurred vision Hello, I am a high school student and I have recently noticed a significant decline in the vision of my right eye over the past week or two (it may have started earlier). My eye occasionally feels a slight pain and a pulling sensation, and I don't tear up much...
Dr. Gao Pilin Reply:
Hello, based on your description, it seems that your symptoms are likely caused by eye strain, which can lead to difficulty seeing clearly due to excessive fatigue of the ciliary muscles. However, I still recommend that you visit an ophthalmologist for a thorough examination. The...[Read More] Blurred Vision in Teens: Causes and When to See a Doctor
Understanding the Connection Between Strabismus and Dizziness: A Patient's Journey
I'm not sure if my latent strabismus has worsened, causing dizziness? Hello doctor, I have had latent strabismus since childhood. About five years ago, I started experiencing severe soreness and pain around my eyelids, which was constant and made me want to press and relax t...
Dr. Gao Pilin Reply:
Hello, Dizziness: Based on your description, you may have latent strabismus. As you age, the convergence ability of the eyes decreases, which can sometimes lead to manifest strabismus. To compensate, greater effort is required, resulting in muscle soreness and dizziness. When wea...[Read More] Understanding the Connection Between Strabismus and Dizziness: A Patient's Journey
Does Alternating Glasses Affect Vision Prescription?
Will alternating between two pairs of glasses affect my prescription? Hello, my current prescription is -9.25 diopters. When I go out, I wear -8.75 diopter glasses, and when I use the computer, I switch to -7.50 diopter glasses. 1. Will this daily alternation affect my prescrip...
Dr. Gao Pilin Reply:
Hello Anan, 1. At your age, alternating between glasses should not significantly affect your prescription. However, theoretically, using +875 diopters for computer work and +750 diopters for mobile devices might be more logical, as the computer is viewed from a farther distance ...[Read More] Does Alternating Glasses Affect Vision Prescription?
Understanding Eyeglass Prescription: Key Questions Answered by an Expert
(Continuation of question) #165222 Regarding prescription glasses issues? Dear Dr. Gao, Thank you very much for your response to my previous personal inquiry. However, I still have some questions I would like to ask you: 1. In your response, you mentioned that the principle of ...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: 1. As long as it is sufficient for your needs, it is usually between 0.8 and 1.0. However, some may feel that 0.6 is adequate; it varies from person to person. Therefore, there is no need to be overly concerned about the degree of myopia, as long as you are com...[Read More] Understanding Eyeglass Prescription: Key Questions Answered by an Expert
Understanding Eye Fatigue: Causes, Symptoms, and Treatment Options
Eye fatigue Hello Dr. Gao, I visited an ophthalmology clinic on December 24th last year due to extreme discomfort when looking at screens. After examination, my intraocular pressure was measured at 27/24. Dr. A prescribed me Cartelol 2% and Better eye drops 0.5%. After using the...
Dr. Gao Pilin Reply:
Hello Jerry: Based on your description, it may not be an issue with intraocular pressure, but rather a problem related to fatigue. If you have hyperopia (farsightedness), it could also contribute to this situation. It would be best to undergo a dilated eye exam. If hyperopia is p...[Read More] Understanding Eye Fatigue: Causes, Symptoms, and Treatment Options
Why Did My Farsightedness Suddenly Increase?
Increased hyperopia? Hello, doctor: A year ago, I had an eye exam and was diagnosed with +2.50 diopters of hyperopia, for which I received a pair of glasses. However, I hardly used them. Recently, I noticed that my vision at both near and far distances has become somewhat blurry....
Dr. Gao Pilin Reply:
Hello: You may have had a hyperopia of 100 degrees, but during previous eye examinations, your ciliary muscles might have been exerted, resulting in a lighter measurement. Now, since you are unable to exert that effort for accommodation, your vision may appear blurry. This is lik...[Read More] Why Did My Farsightedness Suddenly Increase?
Understanding Pupil Dilation Effects on Vision Clarity
Pupil Dilation Issues The left eye has a vision of 1.0 with a myopia of 50 degrees, while the right eye has a vision of 1.2. Recently, the right eye has been feeling blurry. Both eyes were treated with 0.25% tropicamide for dilation. Typically, dilation causes blurred vision for ...
Dr. Gao Pilin Reply:
Hello, Jun: Based on your vision and prescription, it seems that the two eyes are functioning differently. The right eye may not be fully operational, and the ciliary muscle may not be completely paralyzed. At the E-Hospital in Puzi, Taiwan, the ophthalmology department is open o...[Read More] Understanding Pupil Dilation Effects on Vision Clarity
Long-Term Use of Mydriatics: Risks of Glaucoma and Other Eye Conditions
Side effects of eye drops? 1. If the angle is normal but there is a predisposition to "chronic" open-angle glaucoma, will long-term use of mydriatic agents induce glaucoma? 2. I have seen different opinions online. Doctor A says, "Long-term use should be cautious ...
Dr. Gao Pilin Reply:
Hello Daniel: Open-angle glaucoma is less likely to experience acute attacks due to mydriatic agents. Closed-angle glaucoma is more prone to such occurrences. Mydriatic agents cause the pupils to dilate, increasing the amount of light entering the eye. Prolonged exposure to brigh...[Read More] Long-Term Use of Mydriatics: Risks of Glaucoma and Other Eye Conditions
Understanding Myopia Progression: Factors Beyond Axial Length in Young Adults
RE: Rapid Increase in Myopia Among College Students Thank you, doctor, for your helpful response to my previous question. Regarding my second question, "Myopia is influenced not only by axial length but also by the cornea and lens. At 19 years old, if there is no trauma, can...
Dr. Gao Pilin Reply:
Hello, Ms. Yan: Aside from the axial length of the eye, the most common cause of changes in the refractive power of the lens is the contraction of the ciliary muscle. However, the specific origin of this change is not something to be overly concerned about, as it is a multifact...[Read More] Understanding Myopia Progression: Factors Beyond Axial Length in Young Adults
Understanding Myopia Progression in College Students: Key Factors and Treatments
The rapid increase of myopia among college students? Hello, doctor. My son is 19 years old and has myopia with a prescription of approximately -5.50/-6.75 diopters. He is regularly monitored by an ophthalmologist for his prescription and axial length, and he is currently using at...
Dr. Gao Pilin Reply:
Hello, Miss Yan: 1. An increase of 1 mm in axial length corresponds to approximately an increase of 300 degrees of myopia. Besides axial length, the most common cause is the strain of the ciliary muscle. 2. Yes, it is possible. 3. If there are so many discomforts, you can avoid ...[Read More] Understanding Myopia Progression in College Students: Key Factors and Treatments
Understanding Pupil Dilation Effects: Light Sensitivity and Eye Health
Mydriatics and photophobia? Hello, Doctor. I am 18 years old. I have been continuously monitored for my eye condition at a large hospital for a total of six years, from middle school until my high school graduation. To control my myopia, the doctor prescribed me Atropine 0.3% eye...
Dr. Gao Pilin Reply:
Hello, Student Lin: 1. At your age, you can gradually stop the medication. 2. Typically, stopping the medication should not cause photophobia; it may be that the ciliary muscle starts to function again after discontinuation, leading to discomfort when exposed to light. This disc...[Read More] Understanding Pupil Dilation Effects: Light Sensitivity and Eye Health
Concerns About Increasing Eyeglass Prescription After Adulthood
Inquiry about the increase in refractive error in adults? Hello Doctor, thank you very much for your detailed explanation and teaching. If my prescription was indeed increased by 50 degrees due to "ciliary muscle strain," and I ended up wearing glasses with that additio...
Dr. Gao Pilin Reply:
Hello, Lin: Wearing glasses with a prescription that is stronger than your actual vision can cause eye fatigue. However, a prescription of -50 diopters is not likely to cause significant issues for your eyes. If you can undergo cycloplegic refraction, the measured prescription wi...[Read More] Concerns About Increasing Eyeglass Prescription After Adulthood
Understanding Myopia Progression in Adults: Common Misconceptions and Solutions
The issue of increased refractive error in adults? Hello, Doctor. I have been nearsighted for many years. As far as I remember, my prescription has remained stable at -2.25 diopters from the age of 19 to 23 during my university years. However, it seems that a year after my last m...
Dr. Gao Pilin Reply:
Hello, Student Lin: 1. After reaching adulthood, the degree of myopia is less likely to increase; however, if the eyes become fatigued due to the ciliary muscle working hard, there may still be a chance for a temporary increase in prescription, typically within a range of 25-50 ...[Read More] Understanding Myopia Progression in Adults: Common Misconceptions and Solutions
Understanding Eye Strain: When to Seek Help for Vision Issues
Consult a doctor about eye problems? Hello Doctor: Due to my work, I often look at my phone and computer, as well as participate in video calls. Recently, I have been under pressure to complete a project, which has led to increased screen time. Yesterday, I felt a bit tired and w...
Dr. Gao Pilin Reply:
Hello, This situation seems more like a phenomenon caused by ciliary muscle fatigue. Please refer to: https://bit.ly/3a85BOm. This is not a flashing phenomenon; flashes would resemble lightning seen during a thunderstorm. Therefore, this symptom will alleviate after resting. ...[Read More] Understanding Eye Strain: When to Seek Help for Vision Issues
Understanding Eye Symptoms: When to Seek Help for Vision Issues
Eye problems Hello, Doctor. 1. Last night, while looking at my phone in a dark place, I saw what looked like fine raindrops falling. I have experienced this before (occasionally a single drop), but this time it was more continuous (though not as heavy as a downpour). After rest...
Dr. Gao Pilin Reply:
Hello: 1. If it disappears, it is likely a type of photopsia, which should not be a concern. 2. Seeing rainbow halos indicates corneal edema, which may occur due to prolonged wear time; it is advisable to shorten the wearing duration to prevent corneal hypoxia. 3. (1) It could be...[Read More] Understanding Eye Symptoms: When to Seek Help for Vision Issues
Understanding Eye Pressure, Glaucoma Concerns, and Self-Assessment Methods
Regarding intraocular pressure, glaucoma, and the method of palpation? Hello, I often feel pain and pressure in my left eye, along with headaches, so I saw two ophthalmologists last month. The first doctor measured my intraocular pressure using a puff test, which showed (left) 30...
Dr. Gao Pilin Reply:
Hello Isa: Your condition is likely due to eye strain from excessive use, causing a sensation of pressure and pain in your eyes. It is not glaucoma. Ciliary muscle tension can also lead to this feeling of pressure. Even experienced physicians cannot accurately assess intraocular ...[Read More] Understanding Eye Pressure, Glaucoma Concerns, and Self-Assessment Methods
Understanding Hyperopia and Astigmatism in Children: Treatment Insights
Hyperopia with astigmatism Hello, doctor: I would like to ask about a 9-year-old child who was found to have poor vision at school. After administering a dilating agent at the clinic, the examination revealed hyperopia of +50 diopters in both eyes and astigmatism of +50 diopters ...
Dr. Liang Ce Reply:
It is recommended to consult with an ophthalmologist at the outpatient clinic for appropriate advice. Thank you, and wish you good health![Read More] Understanding Hyperopia and Astigmatism in Children: Treatment Insights