Understanding Eye Exam Results and Medication Concerns Before Studying Abroad
Questions about ophthalmic examination content and medications? Hello Dr. Liang. I am currently 20 years old and will be going abroad for studies in a month. I recently had my last routine eye examination before leaving, but I have some concerns and questions regarding the examin...
Dr. Liang Ce Reply:
It is recommended that you discuss the above situation with your attending physician to determine if further examinations are necessary. Thank you, and wishing you good health![Read More] Understanding Eye Exam Results and Medication Concerns Before Studying Abroad
Understanding High Astigmatism and Amblyopia in Young Children
High astigmatism amblyopia Dr. Liang: Hello, my child had an ophthalmological examination at the hospital when he was nearly 3 years old. The refraction test revealed high astigmatism (approximately 400 degrees in both eyes), and the visual acuity test showed around 0.5 to 0.6 in...
Dr. Liang Ce Reply:
It is recommended that you discuss the above situation with your attending physician to determine if further examinations are necessary. Thank you, and wishing you good health![Read More] Understanding High Astigmatism and Amblyopia in Young Children
Understanding Lens Distortion: Why Do My Glasses Make Objects Look Larger?
Questions about eyeglass lenses? Dear Dr. Gao, Hello. I previously mentioned to you that last year (2021), due to delamination of my eyeglass lenses, I had my lenses replaced and underwent a refraction test. The result showed that the prescription for my left eye remained unchan...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: Usually, a decrease in myopia degree can lead to a magnification effect, or it may occur when the lenses are positioned farther from the eyeball. However, the most likely reason is related to the optical properties of the lenses. There can be differences among v...[Read More] Understanding Lens Distortion: Why Do My Glasses Make Objects Look Larger?
Understanding Astigmatism in Young Children: Accuracy of Eye Exams
Pediatric vision screening for high astigmatism? Dr. Gao: Hello, I would like to ask a follow-up question regarding <a href="https://adoctor.tw/article/182670">#182670</a>. There is a significant discrepancy between the computer-generated refraction (450 deg...
Dr. Gao Pilin Reply:
Dear Concerned Parents, Astigmatism of 450 degrees will certainly affect vision, but a current visual acuity of 0.5-0.6 is still acceptable. Astigmatism causes images to scatter, but sometimes it is still possible to discern the eye chart, so it is not necessarily just guessing....[Read More] Understanding Astigmatism in Young Children: Accuracy of Eye Exams
Understanding Vision Issues: Questions About Prescription Glasses and Eye Health
Inquiry Consultation Dear Dr. Gao, Last year (2021), I had my glasses lenses delaminate, so I went to an optical shop for a replacement. Initially, the staff performed a refraction test. Here are the results: my left eye is approximately -3.00 diopters with astigmatism of either...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: 1. It is possible that the prescription is not fully accurate. Near vision is naturally clear. However, sometimes even with a proper prescription, the clarity between the two eyes may still differ. 2. There will be no adverse effects. 3. It should be unrelat...[Read More] Understanding Vision Issues: Questions About Prescription Glasses and Eye Health
Understanding Adult Myopia: Do You Need Dilated Eye Exams?
Refractive error in adulthood? Hello Doctor, I would like to ask: I am 26 years old and my prescription has been increasing by 25-50 degrees each year. Is it necessary to have a dilated eye exam every six months? The doctor mentioned that this increase is still acceptable, but I ...
Dr. Gao Pilin Reply:
Hello Angie: At this speed in adulthood, it indicates that the eyes may be too fatigued, but it is not likely to progress to high myopia as long as the axial length does not increase excessively. Regular check-ups every six months can include dilated refraction tests, and sometim...[Read More] Understanding Adult Myopia: Do You Need Dilated Eye Exams?
Choosing Contact Lenses for High Corneal Curvature: A Guide
If the curvature of your eyeball is too steep (and even a daily disposable lens with a curvature of 9.0 mm is not suitable), how should you choose contact lenses? Doctor, I apologize for the interruption. I have never worn contact lenses before, but recently I went to an optical ...
Dr. Gao Pilin Reply:
Hello, A: If wearing them feels uncomfortable, then they are not suitable contact lenses. The values 43.5 and 40.75 refer to the refractive power, with 40.75 being flatter and having a lower refractive power. The curvature of the eyeball can be measured during the refraction test...[Read More] Choosing Contact Lenses for High Corneal Curvature: A Guide
Understanding Astigmatism: Causes, Symptoms, and Treatment Options
Causes of worsening astigmatism? 1. Is rubbing the eyes a cause of keratoconus? 2. If astigmatism deepens to around 300 degrees, is it definitely keratoconus, or could there be other causes? 3. How long does it typically take to adapt to wearing glasses for astigmatism? 4. ...
Dr. Gao Pilin Reply:
Hello, 1. It is possible, but generally, rubbing the eyes does not cause this unless it is done with excessive force and over a long period. Please refer to: https://bit.ly/2XQEUMi 2. Not necessarily; it could simply be astigmatism. 3. Typically, with the appropriate prescrip...[Read More] Understanding Astigmatism: Causes, Symptoms, and Treatment Options
Post-Cataract Surgery Issues: Understanding Vision Changes and Glasses Fitting
Postoperative issues after cataract surgery? Hello, Director Gao. I have a few questions to ask you: I am currently 54 years old. I underwent retinal detachment surgery (pneumatic retinopexy) in early May, and then cataract surgery in August. The doctor recommended using a premiu...
Dr. Gao Pilin Reply:
Hello Mr. Chen: After retinal detachment surgery, it is possible that your vision may not return to its original state, as the retina has already been damaged. There are many reasons why a refraction test may not yield a prescription. I recommend that you visit an ophthalmologist...[Read More] Post-Cataract Surgery Issues: Understanding Vision Changes and Glasses Fitting
Understanding Eye Appointment Terminology: What Does KR Mean?
Terminology issues on ophthalmology appointment forms? Could you please clarify what "KR" means on my ophthalmology follow-up appointment slip? Additionally, during my visit, the clinic mentioned that my astigmatism has increased by 150 to 200 degrees. What circumstance...
Dr. Gao Pilin Reply:
Hello: Astigmatism is a deformation of the cornea, and any condition that causes corneal distortion can lead to astigmatism. KR may refer to a follow-up visit for a refraction test to measure the curvature of the cornea. Information found online should only be used as a reference...[Read More] Understanding Eye Appointment Terminology: What Does KR Mean?
Understanding Eyeglass Prescription Adjustments: Key Questions Answered
Regarding prescription glasses issues? Dear Dr. Gao, I recently experienced delamination of my eyeglass lenses due to prolonged use, so I went to an optical shop to have the lenses replaced (the frame was not changed). Since I hadn't had an eye exam in many years, the staff...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: 1. The principle is to ensure clear vision; if you can function normally with slightly reduced prescription, that's acceptable. 2. Wearing a slightly lower prescription for nearsightedness can reduce strain, especially for those with presbyopia. 3. A diffe...[Read More] Understanding Eyeglass Prescription Adjustments: Key Questions Answered
Understanding Pediatric Esotropia: MRI Insights and Causes Explained
Pediatric Esotropia My child is almost three years old and recently developed an inward squint in one eye. We took him for an eye examination, and it was confirmed that he has a 16-degree esotropia. The doctor mentioned that there are many potential underlying causes, so they sch...
Dr. Gao Pilin Reply:
Hello, Yi: You may need to consult your attending physician directly to determine if there is hyperopia; I cannot assess that. The presence of strabismus in one eye could indicate various underlying causes. Therefore, it is advisable to undergo an MRI to rule out certain conditio...[Read More] Understanding Pediatric Esotropia: MRI Insights and Causes Explained
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
Concerns About Eye Safety During Vision Tests: What You Need to Know
Issues with Prescription Glasses Hello, doctor. When I was getting my glasses fitted, I underwent a test where I saw a house in front of me. During the process, I noticed a brief flash of red light, which I later learned was infrared. I'm concerned if this could have caused ...
Dr. Gao Pilin Reply:
Hello, Si: Infrared light is invisible, and refraction tests do not involve infrared or laser; what you see should only be red light, which will not harm your eyes. It is unrelated to dilated eye examinations. For accurate measurements, if the prescription is unstable, dilation i...[Read More] Concerns About Eye Safety During Vision Tests: What You Need to Know
Post-Cataract Surgery: Understanding Blurry Vision and Recovery Concerns
Post-cataract surgery Hello, Doctor! My mother recently underwent cataract surgery (out-of-pocket cost of about 38,000 NTD). Immediately after the surgery, her vision was very clear, but the next day it started to become blurry. My father had the same surgery years ago and it was...
Dr. Gao Pilin Reply:
Dear Mr. Hsiao, After surgery, there may be a recovery period during which your vision will stabilize. Please observe your condition for a while; if a refraction test shows a prescription, you will need to wear glasses for clear vision. Each individual's situation is differ...[Read More] Post-Cataract Surgery: Understanding Blurry Vision and Recovery Concerns
Post-LASIK Vision Issues: One Eye Blurry After Surgery
Blurred vision in one eye after laser surgery for myopia? Hello Doctor, about 10 days after my laser eye surgery for my myopia, I noticed while applying my eye drops that I cannot see the subtitles on the television with my right eye at all. Since I usually watch with both eyes, ...
Dr. Gao Pilin Reply:
Dear Miss Wu, There are many reasons for unclear vision after surgery, but I am unsure why you can still see to 1.0. It may be that you can see, but the image quality is not as good. If that is the case, there might still be some refractive error present. A refraction test will ...[Read More] Post-LASIK Vision Issues: One Eye Blurry After Surgery
Understanding Over-Prescription of Glasses: Risks and Solutions
The prescription for the glasses is too strong? Hello, Dr. Gao. I would like to ask you a question. I previously got a pair of glasses, and I now realize that the prescription is too strong (both eyes are 100 degrees more than my previous pair, and I got them fitted after a long ...
Dr. Gao Pilin Reply:
Hello: If you are accustomed to wearing deep glasses, switching to shallower ones may initially cause blurriness. It may also lead to a genuine increase in your prescription. The best approach is to undergo a refraction test after dilation to determine your true prescription, and...[Read More] Understanding Over-Prescription of Glasses: Risks and Solutions
Understanding Myopia: Why Your Glasses Prescription May Change
Myopia blurred vision? Hello, doctor. My original glasses prescription was R: -4.75, L: -2.75, with slight astigmatism in the left eye, but it seems that it wasn't included in the glasses. Recently, I've noticed some blurriness in my left eye, so I went to an optical sh...
Dr. Gao Pilin Reply:
Hello Chiu: I'm not sure what you mean by manual refraction. Is it testing with lenses to see which one is the clearest, or is it using the traditional retinoscopy method? If an experienced practitioner performs retinoscopy, the reliability will be higher. Computerized refra...[Read More] Understanding Myopia: Why Your Glasses Prescription May Change
Is Post-Laser Eye Surgery Vision Testing Accurate Without Dilation?
Is the vision test accurate after undergoing laser surgery? Hello, Doctor. I underwent laser surgery for high myopia about a year ago. Recently, I went to another clinic (not the one that performed the laser surgery) for a refraction test, and they indicated that I still have myo...
Dr. Gao Pilin Reply:
Hello: Is the measurement of refractive error using a phoropter accurate? Yes, it is accurate, but there may be some differences between machines. Is it necessary to use a phoropter to check for cycloplegia for more accuracy? In adults, the difference after cycloplegia is relativ...[Read More] Is Post-Laser Eye Surgery Vision Testing Accurate Without Dilation?
Understanding Vision Changes: New vs. Old Glasses Dilemma
Issues with New and Old Glasses Hello, Doctor. In mid-May this year, my glasses' nose pad broke, so I got a new pair. My old glasses had a prescription of -5.25 for the left eye and -5.00 for the right eye, and I had been wearing them for over two years. My new glasses have ...
Dr. Gao Pilin Reply:
Hello Emma: 1. It is possible that the slight increase in your prescription is due to eye strain; your vision may not have been as poor initially. 2. The optical properties of new and old glasses may differ, such as pupillary distance, the distance from the lens to the eye, an...[Read More] Understanding Vision Changes: New vs. Old Glasses Dilemma