Can Optic Nerve Atrophy Be Detected Through Eye Exams?
Can optic nerve atrophy be diagnosed through examination? Hello, Dr. Gao. I have high myopia (approximately 900 degrees in both eyes). Recently, I visited the hospital because I noticed that the periphery of my central vision was unusually blurry. The doctor conducted a visual fi...
Dr. Gao Pilin Reply:
Hello Kevin: Your visual field is normal, but there are some areas that are blurred, which may be due to retinal changes. High myopia can easily lead to such degeneration, resulting in unclear images rather than visual field loss; it should not be related to optic nerve atrophy. ...[Read More] Can Optic Nerve Atrophy Be Detected Through Eye Exams?
Understanding MD Values in Visual Field Tests: Do -5 Indicate Vision Loss?
MD value in visual field testing If my visual field test MD value is -5, does that indicate a visual field defect?
Dr. Gao Pilin Reply:
Hello: Please refer to the following information regarding the staging of glaucoma based on visual field examination interpretation: Early stage: MD (Mean Deviation) less than -6 dB (decibels) Mid-stage: MD between -6 and -12 dB (decibels) Late stage: MD greater than -13 dB...[Read More] Understanding MD Values in Visual Field Tests: Do -5 Indicate Vision Loss?
Understanding Sudden Grayish Ovals in Vision: Possible Causes and Concerns
A sudden appearance of a flat oval-shaped "mosaic/ground glass" grayish-white shadow in the right eye? Hello Doctor: My left eye is hyperopic at +2.25 diopters, and my right eye is myopic at -6.25 diopters. Due to severe astigmatism in my left eye, I have some amblyopia...
Dr. Gao Pilin Reply:
Hello Mr. N: If you notice movement that follows your eye movements but is slightly out of sync and appears shaky, it is likely due to opacities in the vitreous body. These opacities can sometimes be undetectable during examinations and are only perceptible to the individual. Vit...[Read More] Understanding Sudden Grayish Ovals in Vision: Possible Causes and Concerns
Understanding Blurred Vision in the Outer Field of Left Eye
Blurry vision in the peripheral area of the left eye? Hello Doctor, I am highly myopic (approximately 900 degrees in both eyes). Two years ago, I experienced a sudden vitreous hemorrhage in my left eye, so I have been regularly visiting the hospital for dilated fundus examination...
Dr. Gao Pilin Reply:
Hello Kevin: Blurred vision in the outer fields of both eyes may indicate a defect in the visual field examination. If the retinal examination is normal, we should consider issues related to the optic nerve and the brain. The first thing to consider is a potential problem with th...[Read More] Understanding Blurred Vision in the Outer Field of Left Eye
Understanding Eye Health: Common Concerns and Symptoms Explained
Vision problems Hello, Doctor. I have three questions I would like to ask you. 1. During a dilated eye exam last June, I noticed a small area in the lower left and directly below my right eye that appeared darker (deep red). However, several months of subsequent dilations and v...
Dr. Gao Pilin Reply:
Hello Wei: 1. Based on the physician's and your descriptions, there should be no issues. Regular follow-ups are sufficient. 2. First, correct both eyes to achieve emmetropia, then check for any color disparity. If there is none, it is likely due to refractive error. Other...[Read More] Understanding Eye Health: Common Concerns and Symptoms Explained
Brief Black Spots When Blinking: Understanding Eye Health Concerns
A black spot may appear for a moment when blinking? I recently had a visual field test, and currently, there are no issues. However, when I look at a white background, I occasionally see a small black flash (with a cyan center) that appears for a moment and then disappears. It do...
Dr. Gao Pilin Reply:
Hello Mr. Chen: This phenomenon is more likely related to opacities in the vitreous body, and since it tends to disappear, it is not a major concern. The examination showed no issues, so you can rest assured. Information from the internet should only be used as a reference; if ne...[Read More] Brief Black Spots When Blinking: Understanding Eye Health Concerns
Understanding Dark and Yellow Vision in High Myopia: Causes and Solutions
The left eye sees things as dark and yellow, and the small print on packaging is unclear? Hello Doctor: I am 24 years old and have high myopia in both eyes, with the right eye at -950 and the left eye at -750 (both eyes have astigmatism of 200-250). I have had retinal laser treat...
Dr. Gao Pilin Reply:
Hello Krystal: Currently, it does not appear to be macular degeneration, and if there were any issues, the physician would inform you. Regular check-ups will allow for early detection of any lesions. As for the differences in visual acuity, color perception, and brightness betwee...[Read More] Understanding Dark and Yellow Vision in High Myopia: Causes and Solutions
Understanding Glaucoma Diagnosis: Insights from Recent Eye Exam Results
Report on the Diagnosis of Glaucoma Hello Doctor, I apologize for interrupting your busy schedule. I would like to inquire about my vision from March 1 to May 17, where my visual acuity was between 900-1000 with a correction of 1.0. My intraocular pressure ranged from 18 to 21 mm...
Dr. Gao Pilin Reply:
Hello Jun: Since I have not personally examined you and have not seen the report, I cannot make a judgment based on the data. It should be determined by your attending physician. The same applies to medication. I apologize for not being able to provide more reference information....[Read More] Understanding Glaucoma Diagnosis: Insights from Recent Eye Exam Results
Does Eye Movement Affect Visual Field Test Results?
Visual field examination I would like to ask if during a visual field test, sometimes my eyes drift away from the target position. I'm wondering if this will affect the results. Can the machine detect the position of my gaze and filter out those few measurements where my gaz...
Dr. Gao Pilin Reply:
Hello Mr. Chang: The machine will detect the number of times your eyes are not looking straight ahead. If the count is low, the results are still reliable. However, if the count is too high, the results may be inaccurate, and a retest may be necessary. At the Taiwan E-Hospital Pu...[Read More] Does Eye Movement Affect Visual Field Test Results?
Understanding Eye Pressure and Blind Spots: Causes and Concerns
Swollen eyes? Hello Doctor, sometimes when I use my phone for too long, I feel a pressure in my right eye (only the right eye). I am nearsighted with both eyes at -8.00 diopters, and my intraocular pressure is around 22 to 23 mmHg (the doctor mentioned that I have a thick cornea,...
Dr. Gao Pilin Reply:
Hello Mr. Huang: The most common cause of eye puffiness is fatigue. Based on your description, it seems to be the case. If the examination shows no issues, a visual field test can be conducted to determine any blind spots. At the E-Hospital in Puzi, Taiwan, the ophthalmology depa...[Read More] Understanding Eye Pressure and Blind Spots: Causes and Concerns
Understanding Flashing Lights in Vision: When to Seek Eye Care
Flash problem Dear Doctor, I apologize for disturbing you during your busy schedule. I have approximately 800 degrees of myopia in both eyes, and due to experiencing floaters and suspected glaucoma, I have been undergoing regular check-ups since last year. In November of last ye...
Dr. Gao Pilin Reply:
Hello Natsuki: Typically, flashes in the eyes do not produce any sound. If there are no further occurrences or additional symptoms, you may continue to observe. Angle-closure glaucoma can trigger acute glaucoma, while open-angle glaucoma usually does not convert to angle-closure ...[Read More] Understanding Flashing Lights in Vision: When to Seek Eye Care
Understanding Glaucoma Risks for High Myopia Patients: Key Insights
Suspected glaucoma? I have high myopia of 800-900 diopters and underwent an eye examination. My intraocular pressure readings were around 17, 19, 20, and 21 mmHg, and my corneal thickness was 560 and 570 micrometers. My corrected vision is 1.0, and the visual field test was norma...
Dr. Gao Pilin Reply:
Hello Jun: 1. Please continue to monitor your condition, and if there are any changes in your vision, treatment may be necessary. 2. Chronic glaucoma is a long-term condition that often presents with few symptoms. However, if there is a sudden significant increase in intraocul...[Read More] Understanding Glaucoma Risks for High Myopia Patients: Key Insights
Understanding Retinal Vessel Twisting and Vision Fluctuations in Teens
Retinal vascular tortuosity and vision impairment? I am 17 years old and have undergone laser surgery in both eyes due to retinopathy of prematurity. As a result, I have developed myopia as a complication and have been returning for check-ups every three months. Since February of...
Dr. Gao Pilin Reply:
Hello Claire: It is possible that your retina is unstable due to retinopathy of prematurity, which may cause a tugging sensation similar to that of blood vessels, resulting in unstable vision and images. As for the exact cause, further examination is necessary, as there are many ...[Read More] Understanding Retinal Vessel Twisting and Vision Fluctuations in Teens
Understanding Eye Symptoms: Floaters, Glare, and Vision Concerns
Medical consultation Hello Doctor, I apologize for the interruption. As an engineer, I need to use my eyes for extended periods, and I also have quite severe floaters. Recently, I have experienced the following situations and would like to consult you: 1. When looking at white ...
Dr. Gao Pilin Reply:
Hello Engineer: 1. The appearance of rainbows may also indicate glaucoma; if possible, you should have your visual fields checked. 2. This could be a form of photopsia, which may not be detectable and is often a physiological phenomenon. For reference: https://bit.ly/2VNsdxL Taiw...[Read More] Understanding Eye Symptoms: Floaters, Glare, and Vision Concerns
Understanding Night Blindness: Symptoms and Diagnosis Explained
Inquiry about night blindness? Hello, doctor. I would like to inquire whether not being able to see anything in a completely dark room could be a sign of night blindness. Recently, I've noticed that I have difficulty reading signs at night, and I'm unsure if this is rel...
Dr. Gao Pilin Reply:
Hello Wei: If you find it difficult to read the signs outside at night, it may be related to your prescription. Try wearing glasses to see if it improves your clarity; if it does, then there is likely no issue, and it should not be night blindness. After examination, everything a...[Read More] Understanding Night Blindness: Symptoms and Diagnosis Explained
Understanding Eye Pressure and Corneal Thickness: Key Insights for Patients
Intraocular pressure and corneal thickness? Hello Doctor: Since I started experiencing floaters in March 2020, I have been regularly visiting an ophthalmologist for check-ups. In March, my eye pressure readings were 19 and 21 (University Hospital, with some margin of error). In A...
Dr. Gao Pilin Reply:
Hello, Xiao Liao: 1. Generally, in your twenties, the eyes should not be swollen or feel hard to the touch. If you experience such symptoms, the most common cause is fatigue. 2. Due to differences in equipment, please consult a physician to determine whether your intraocular p...[Read More] Understanding Eye Pressure and Corneal Thickness: Key Insights for Patients
Why Are My Eyes More Sensitive to Light After Using Eye Drops?
The halos around streetlights appear larger when viewed with the eyes? Hello Doctor, in recent years, my health check-ups have indicated that I have elevated intraocular pressure (around 21-23). Initially, I didn't pay much attention to it because my cornea is relatively thi...
Dr. He Jianxian Reply:
Basically, the enlargement of the halo is likely unrelated to the eye drops you suspect for glaucoma; it should not be a side effect of the medication. If you have concerns, it is advisable to discuss them with the prescribing physician. Director He Jian-xian, Ophthalmology Depar...[Read More] Why Are My Eyes More Sensitive to Light After Using Eye Drops?
Understanding High Eye Pressure: Risks, Treatments, and Lifestyle Changes
Ocular hypertension Hello, Doctor Gao: I have been experiencing a tightness in my eyes for the past month. Despite significantly reducing my screen time and increasing my sleep, my eye pressure measurements at the hospital have remained elevated (25, 26). Even after accounting fo...
Dr. Gao Pilin Reply:
Hello Jerry: Actually, an intraocular pressure in the twenties typically does not cause discomfort; your discomfort is likely due to eye muscle fatigue. Some individuals naturally have higher intraocular pressure, and changing lifestyle habits or consuming specific nutrients may ...[Read More] Understanding High Eye Pressure: Risks, Treatments, and Lifestyle Changes
Managing High Eye Pressure and Dry Eye Syndrome: Key Questions Answered
High intraocular pressure + dry eye syndrome Previously, my intraocular pressure was 23-24. The doctor prescribed me Iopidine, bottled artificial tears, bottled eye drops, and tear film ointment, along with self-paid single-dose artificial tears. After a month, during my follow-u...
Dr. He Jianxian Reply:
Hello Miss Mei: 1. The use of intraocular pressure-lowering medications should be based on a high suspicion of glaucoma. If the corneal thickness is normal but intraocular pressure is elevated, and there are defects in visual field testing or abnormalities in OCT examination, pl...[Read More] Managing High Eye Pressure and Dry Eye Syndrome: Key Questions Answered
Understanding High Eye Pressure and Its Impact on Vision Health
Elevated intraocular pressure, slightly compromised optic nerve, normal visual field examination? Hello, Doctor. I have myopia of -9.00 diopters and astigmatism of -1.50 in my left eye, and myopia of -9.75 diopters and astigmatism of -7.51 in my right eye. I have been wearing gla...
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 Eye Pressure and Its Impact on Vision Health