Understanding Rainbow Halos: Eye Symptoms and Potential Concerns
Seeing halos around lights? Hello Doctor, I have some questions I would like to ask you. Last night while I was lying in bed, my left eye suddenly became blurry, and when I looked directly at the light, I saw a rainbow halo around it. A few minutes later, the same symptoms appear...
Dr. He Jianxian Reply:
Hello: Acute glaucoma typically does not occur in young individuals unless there are congenital abnormalities present. It is recommended that you continue to monitor the situation, and if symptoms reappear, consider visiting an ophthalmologist for an examination. Director He Jian...[Read More] Understanding Rainbow Halos: Eye Symptoms and Potential Concerns
Understanding the Discrepancy Between OCT and Visual Field Tests in Glaucoma
OCT and Visual Field Testing I have just been diagnosed with glaucoma. The OCT data indicates early-stage glaucoma, but the visual field test shows significant defects. Is it possible to have a large discrepancy between the OCT data and the visual field test results?
Dr. Gao Pilin Reply:
Hello Jimmy: OCT is a type of structural assessment of the optic nerve, while visual field testing is a functional assessment. There is a certain correlation between the two, but they are not always completely consistent. The condition of the optic nerve is primarily assessed thr...[Read More] Understanding the Discrepancy Between OCT and Visual Field Tests in Glaucoma
Understanding Visual Field Defects: Symptoms, Causes, and Concerns
Visual field defect Following up on my previous question, I asked the doctor about my peripheral vision appearing to flicker like turning a light on and off. The doctor mentioned that this could potentially indicate a visual field defect, possibly related to glaucoma or retinal d...
Dr. Gao Pilin Reply:
Hello, Awang: It is possible that the blackouts are caused by carotid artery issues. Cold temperatures may cause vasoconstriction, worsening the condition. Visual field defects should be assessed using a visual field test, as early defects may sometimes go unnoticed by the indivi...[Read More] Understanding Visual Field Defects: Symptoms, Causes, and Concerns
Understanding Wavy Vision Distortion in High Myopia Patients
Wavy vision distortion? I would like to ask the doctor, I have high myopia, but after examination, there are no issues with the macula, no retinal tears, and no glaucoma. However, I have noticed that in my right eye on the right side and in my left eye on the left side (it seems ...
Dr. Gao Pilin Reply:
Hello, Ah Da: The water ripples are likely caused by the liquefaction of the vitreous body, rather than a distortion of vision. If the examination shows no issues, you can be reassured.[Read More] Understanding Wavy Vision Distortion in High Myopia Patients
Is Your Focus Narrowing? Understanding Eye Strain and Glaucoma Risks
It feels like the focal point of my eyes is very small? Recently, I’ve noticed that when using my phone or tablet, the area that is clearly in focus is only about half of the screen, while the rest appears blurry and out of focus. Is this normal? Could this be a sign of glaucoma?...
Dr. Gao Pilin Reply:
Hello Mr. Li: It could be an issue with your glasses. I recommend that you visit an ophthalmologist to determine whether you have glaucoma.[Read More] Is Your Focus Narrowing? Understanding Eye Strain and Glaucoma Risks
Seeing Rainbow Halos: Is It a Sign of Glaucoma or Normal?
Seeing a rainbow halo? Doctor, I apologize for bothering you. A few days ago, I noticed a faint rainbow halo when looking at one of the light bulbs in my home. However, the other two light bulbs, which are also in my house, do not exhibit this phenomenon and only have a white hal...
Dr. He Jianxian Reply:
Your condition may also be caused by dirty glasses or tears. Of course, acute glaucoma could also lead to such a situation, but given your age, this possibility is quite low unless you have a congenital abnormality. This is provided for your reference. Dr. Ho Chien-Hsien, Ophthal...[Read More] Seeing Rainbow Halos: Is It a Sign of Glaucoma or Normal?
Is It Safe to Go Without Glasses for 4 Hours? Eye Health Concerns Explained
Hello, doctor? Hello Doctor, I have myopia of about 350 degrees. Recently, I started a job where I only need to stand at the entrance to greet the public, so I hardly need to use my eyes much. During the 4 hours of work, I do not wear my glasses. Is this acceptable? Is it harmful...
Dr. Gao Pilin Reply:
Hello, Ah Xiang: You can go without glasses for 4 hours during work hours. It is possible that due to dry eye syndrome, your eyes may feel very warm, with a sensation of heaviness, and you may also experience eye pressure and headaches, which can lead to blurred vision. The area ...[Read More] Is It Safe to Go Without Glasses for 4 Hours? Eye Health Concerns Explained
Understanding Eye Pressure and Glaucoma: Your Questions Answered
Intraocular pressure and glaucoma? Hello, doctor. In the past two weeks, I have been experiencing frequent swelling and pain around my eyes, which has even led to headaches. I have some questions to ask: 1. My myopia is -6.75 and -7.25 diopters. My last intraocular pressure readi...
Dr. Liang Ce Reply:
We recommend that you discuss the above situation further with your attending physician to determine if any additional examinations are necessary. Thank you, and wishing you good health![Read More] Understanding Eye Pressure and Glaucoma: Your Questions Answered
Does High Eye Pressure Cause Increased Floaters?
Vitreous floaters and intraocular pressure? Can high intraocular pressure cause floaters? I have experienced elevated eye pressure for a period of time, and it seems that my floaters have increased as well. However, after examination, there were no signs of glaucoma or retinal is...
Dr. Gao Pilin Reply:
Hello Mr. Chen: There is no specific relationship between elevated intraocular pressure and floaters. After examination, there are no issues, so you can be reassured.[Read More] Does High Eye Pressure Cause Increased Floaters?
Understanding Visual Field Test Results for Glaucoma Management
Visual field examination results A few days ago, I went for an eye exam and to pick up my eye pressure-lowering medication. The results showed that my eye pressure was 17 in one eye and 18 in the other. The doctor was curious why I needed the medication, and I explained that with...
Dr. Gao Pilin Reply:
Hello: For a 21-year-old with high myopia, if there are points that cannot be seen, they may reappear for confirmation. If none are visible, then there could be an issue. The results should be evaluated based on the average; if only a few points are not visible, it does not neces...[Read More] Understanding Visual Field Test Results for Glaucoma Management
Understanding Black Spots and Vision Issues in Your Right Eye
There are shadows in the right eye and issues with dilation? Last week, I noticed a small shadow in my right eye, but I only see it when looking at a white wall or similar surfaces; otherwise, I don't pay much attention to it. It disappears after a while, but reappears when ...
Dr. Gao Pilin Reply:
Hello Wei: 1. The physician examined the retina and found no issues; the macula is also fine, so it can be monitored. 2. It is likely related to the dilation of the pupils; once the pupils constrict, everything should return to normal.[Read More] Understanding Black Spots and Vision Issues in Your Right Eye
Understanding Light Distortion: Is It a Sign of Glaucoma?
Lighting issues Recently, while working at night, I noticed that in addition to the diffuse white light from street lamps, there is also a layer of colored light resembling a rainbow. I'm not sure if this is related to glaucoma, as it doesn't seem quite like it; it only...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical attention.[Read More] Understanding Light Distortion: Is It a Sign of Glaucoma?
Understanding Eye Sensitivity: Causes of Light Sensitivity and Vision Issues
Photophobia, glare, halos, and tearing? Hello doctor, for the past month or two, my eyes have been repeatedly inflamed and tearing. At night, I experience glare from lights, and sometimes when looking at LED lights, I see rainbows. A week ago, I visited a clinic where they checke...
Dr. Gao Pilin Reply:
Hello Mr. Hong: When the eyes are inflamed, they can become sensitive to light, and discharge may cause a rainbow effect. As for why you have difficulty seeing clearly at close distances, it would be best to have an eye examination first. Try removing your glasses to see if your ...[Read More] Understanding Eye Sensitivity: Causes of Light Sensitivity and Vision Issues
Understanding Steroid-Induced Eye Pressure Elevation and Glaucoma Risks
Steroid-induced ocular hypertension Hello Doctor, in early April, I visited a clinic due to conjunctivitis and was suspected to have glaucoma; at that time, my intraocular pressure was 18 in both eyes. I then went to two major hospitals for further examination, where glaucoma was...
Dr. He Jianxian Reply:
1. Currently, most devices used to measure intraocular pressure are non-contact tonometers, which can yield elevated readings due to patients blinking from anxiety during the measurement. 2. Theoretically, over-correcting refractive errors can lead to increased eye fatigue; howev...[Read More] Understanding Steroid-Induced Eye Pressure Elevation and Glaucoma Risks
Can Glaucoma Patients Safely Use Hair Loss Medications?
Can glaucoma patients use male pattern baldness medications (Finasteride, Minoxidil) long-term? Hello, doctor. As a glaucoma patient, I use Brimonidine daily to control my intraocular pressure. However, I have recently noticed issues with male pattern baldness and need to use the...
Dr. He Jianxian Reply:
This medication is not a steroid and does not have any associated side effects related to glaucoma. Director He Jian-xian, Ophthalmology Department, Nantou Hospital.[Read More] Can Glaucoma Patients Safely Use Hair Loss Medications?
Understanding the Prescription of Corning Unis for Eye Health Concerns
Confusion regarding the prescription of Corning Optical's lenses during an ophthalmic examination? Hello, Doctor He. I am currently 20 years old and went for my final eye examination before studying abroad. During this examination, a microsonography was performed (I used the...
Dr. He Jianxian Reply:
This medication should only be prescribed if cataracts are present; however, even if cataracts are not present, using it should not pose any issues. Director He Jian-xian, Ophthalmology Department, Nantou Hospital.[Read More] Understanding the Prescription of Corning Unis for Eye Health Concerns
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 Vitreous Degeneration: When to Seek Further Eye Examination
Vitreous degeneration Hello Doctor, I have approximately 800 degrees of myopia in both eyes. A month ago, I visited an ophthalmology clinic for a check-up regarding floaters, and the examination showed no issues. Later, I went to a large hospital for a comprehensive glaucoma eval...
Dr. Gao Pilin Reply:
Hello: If you experience new flashes, it's important to pay attention and it's best to get checked. If the examination shows no issues, you can monitor it yourself. The flashes you see before sleep are likely visual phosphenes, not flashes caused by vitreous traction. F...[Read More] Understanding Vitreous Degeneration: When to Seek Further Eye Examination
Understanding the Relationship Between High Myopia and Cup-to-Disc Ratio
High myopia cup-to-disc ratio question? Hello, doctor. I have high myopia (R1200, L900) and floaters. Currently, my prescription changes by about 50 degrees after dilation (the doctor said this is normal), and my intraocular pressure measurements have always been normal. During a...
Dr. Gao Pilin Reply:
Hello JJ: 1. The cup-to-disc ratio is an indicator used to assess the optic nerve, and a slightly elevated cup-to-disc ratio caused by high myopia does not necessarily indicate glaucoma. 2. Diagnosis codes are sometimes required for examinations, but the presence of a diagnosis m...[Read More] Understanding the Relationship Between High Myopia and Cup-to-Disc Ratio
Understanding Floaters: When to Seek Eye Care and Safety Tips
Observation of Floaters Hello, I have myopia of -775 diopters in my left eye and -800 diopters in my right eye. About a month ago, I visited an ophthalmologist for a vitreous floaters examination using a funduscope. The doctor mentioned that my retina was fine, but the optic nerv...
Dr. Gao Pilin Reply:
Hello: Actually, a gradual increase is generally not a concern, unless there is a significant surge that requires special attention. Therefore, an increase of 3 to 5 is considered normal. However, if there is a sudden increase of 10 to 20, it would be necessary to get it checked....[Read More] Understanding Floaters: When to Seek Eye Care and Safety Tips