Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Glaucoma-related 1. Can OCT directly show optic nerve atrophy, or does it only indicate the size of the optic disc? Does high myopia affect the interpretation? 2. If the OCT values are abnormal but the visual field test is normal, can it still be classified as glaucoma? (The pa...
Dr. He Jianxian Reply:
Hello Ms. Ching: 1. OCT (Optical Coherence Tomography) is used to collect population data to establish a database for comparative analysis. However, due to individual variations, there can be significant differences, especially in cases of high myopia where the optic nerve head...[Read More] Understanding Glaucoma: OCT Insights, Diagnosis, and Treatment Advances
Understanding Dark Spots in Vision: Insights on Macular Degeneration
The pinhole version has a shadow? Hello Dr. Gao, I have noticed a significant decrease in vision in my left eye in dark or indoor environments, while my right eye remains clear under the same conditions. Both eyes are clear during the day with good lighting. Today, during a pinh...
Dr. Gao Pilin Reply:
Hello, Little Orange: The black shadow around the pinhole is due to diffraction and some optical phenomena, which is normal and will disappear once removed. In cases of pigmentary retinopathy, vision may be unclear at night; however, your condition may not necessarily indicate th...[Read More] Understanding Dark Spots in Vision: Insights on Macular Degeneration
Seeing Rainbow Halos Around Streetlights: Possible Causes Explained
Seeing a rainbow halo around a streetlight? Last week, I had a visual field test and a fundus examination, both of which were normal. A few days ago, I noticed rainbow halos around streetlights, so I immediately visited an ophthalmologist. My intraocular pressure was normal, and ...
Dr. He Jianxian Reply:
Hello Vivi: First, it is important to understand that glaucoma is not possible, as only acute glaucoma can cause such a condition. If you are wearing glasses, dirty lenses or impurities in your tears could also lead to similar issues. Dr. He Jianxian, Ophthalmologist, Nantou Hosp...[Read More] Seeing Rainbow Halos Around Streetlights: Possible Causes Explained
Understanding Night Vision Problems: Why Is My Left Eye Blurry Indoors?
Diminished monocular vision in dimly lit areas or indoors? Hello, Doctor: About three months ago, I suddenly noticed that my left eye's vision decreases whenever I am indoors or at night (with streetlights). The dimmer the light, the less I can see, while my right eye remain...
Dr. Gao Pilin Reply:
Hello, Little Orange: If the aforementioned tests do not reveal the cause, it may be necessary to conduct a functional test of the retina. It could possibly be retinitis pigmentosa. I recommend that you visit the retina department at a medical center for a thorough examination. A...[Read More] Understanding Night Vision Problems: Why Is My Left Eye Blurry Indoors?
Understanding Blurriness After Retinal Laser Repair: What to Expect
After retinal hole repair, the vision may be blurry? Hello, Dr. Gao: About 5 or 6 days ago, I went for an eye examination and suddenly discovered a hole in the retina of my left eye (I don't know the exact location of the hole, just that it's in the left eye). It was tr...
Dr. Gao Pilin Reply:
Dear concerned individual, Laser treatment involves applying energy to the retina, which may initially cause some discomfort or a stinging sensation, as it essentially involves a burning effect. Additionally, the treated area may experience temporary retinal edema, leading to sy...[Read More] Understanding Blurriness After Retinal Laser Repair: What to Expect
Should You Wear Glasses for a Visual Field Test?
Should I wear glasses during a visual field test? Hello Doctor: Recently, my ophthalmologist scheduled a visual field test for me in a few days. I have a pair of glasses; my left eye has 0 diopters of myopia and 50 degrees of astigmatism, while my right eye has 50 diopters of myo...
Dr. Gao Pilin Reply:
Hello, Yizhen: Your prescription is very mild, and you can undergo a visual field test without wearing glasses. Additionally, some visual field machines do not allow for glasses to be worn, but corrective lenses may be available. In any case, it depends on the specific equipment ...[Read More] Should You Wear Glasses for a Visual Field Test?
Understanding Changes in Floaters and Retinal Health After Eye Injury
Upgraded version (?) of floaters and retinal issues? Hello, doctor. I have been experiencing floaters for a long time, but after an incident where I bumped my eye, I feel that the floaters have changed a bit. I can see them not only during the day but also at night, and even when...
Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical attention.[Read More] Understanding Changes in Floaters and Retinal Health After Eye Injury
Understanding Floaters vs. Retinal Issues: Key Differences and Concerns
Consultation for Eye Disorders Hello Doctor, I am Henry, who previously consulted you regarding the floaters caused by a car accident. I apologize for reaching out again. In our last consultation (https://adoctor.tw/article/152888), you mentioned that my condition was floaters an...
Dr. Gao Pilin Reply:
Hello Henry: Floaters are characterized by seeing an indefinite number of floating black spots. Retinal degeneration can be very serious, leading to visual field loss, blurred vision, or severe flashes of light. The two conditions are quite easy to differentiate. In simple terms,...[Read More] Understanding Floaters vs. Retinal Issues: Key Differences and Concerns
Understanding Elevated Eye Pressure: Risks of Glaucoma and What to Expect
Intraocular pressure issues? Hello Doctor, my corneal thickness is over 600 micrometers, and I have myopia of around -8.00 diopters in both eyes. My usual intraocular pressure is around 21 mmHg. Two months ago, I measured it at the clinic, and it was still around 21-22 mmHg. Howe...
Dr. Gao Pilin Reply:
Hello Mr. Huang: The term "marginal" likely indicates that you have not yet undergone a visual field test, while the eye pressure and the appearance of the optic nerve suggest signs of glaucoma. If the intraocular pressure is elevated and there are changes in the optic ...[Read More] Understanding Elevated Eye Pressure: Risks of Glaucoma and What to Expect
Understanding Vision Changes: Blackout in Lower Right Eye Field
Lower visual field of the right eye? Hello, doctor. I have high myopia, and since the end of September last year, I have been experiencing a foggy black sensation in my right eye's lower visual field when moving from bright to dim areas. I had been wearing orthokeratology le...
Dr. Gao Pilin Reply:
Hello Ms. Tseng: This situation is likely unrelated to orthokeratology lenses. The results from the dilation, visual field test, and OCT are not concerning, so there is no need for worry. It is possible that you are experiencing floaters, but it is best to have the examining phys...[Read More] Understanding Vision Changes: Blackout in Lower Right Eye Field
Understanding High Myopia: Symptoms, Progression, and Vision Concerns
Report on High Myopia Consultation Hello Doctor: I have high myopia (550, 600). Last week, during a fundus examination, the doctor mentioned that there were no significant issues with the retina, some degeneration of the vitreous body, but the optic nerve seemed to have atrophied...
Dr. Gao Pilin Reply:
Hello, 1) I would like to ask what symptoms are associated with optic nerve degeneration, elongation of the eyeball, and vitreous degeneration? Will these three conditions continuously worsen without limits, or will they stabilize at some point, and is there a possibility of im...[Read More] Understanding High Myopia: Symptoms, Progression, and Vision Concerns
Understanding Eye Strain and Floaters: Causes and Solutions
Eye discomfort with the presence of floaters? Hello, doctor. I have high myopia and floaters. Recently, I have been feeling fatigued and strained when looking at screens. At night or in dim environments, I experience significant photophobia, and I see many tiny black dots swirlin...
Dr. Gao Pilin Reply:
Hello Mr. Hsu: Based on your description, I cannot deduce the cause of this phenomenon either. Staring at screens can lead to fatigue more easily, and in low light conditions, the pupils dilate, which may result in light sensitivity. Regarding the small black spots, the most like...[Read More] Understanding Eye Strain and Floaters: Causes and Solutions
Can High Eye Pressure Improve? Understanding Glaucoma Management
Can high eye pressure improve? I went for an eye examination the day before yesterday, and my intraocular pressure was 38 mmHg. The doctor suspected glaucoma. I also had a visual field test, which appeared to be normal. The doctor prescribed medication to lower my eye pressure. T...
Dr. He Jianxian Reply:
Sometimes, inflammation in the eyes can lead to temporary elevated intraocular pressure. Since it is not possible to determine the exact cause of your elevated eye pressure, we cannot inform you whether your intraocular pressure will return to normal without medication.[Read More] Can High Eye Pressure Improve? Understanding Glaucoma Management
Understanding Symptoms of Vitreous Detachment and Their Impact on Vision
Symptoms caused by vitreous traction on the retina? Thank you very much, Dr. Gao, for your patient response! It seems that every day after the laser treatment has some slight changes, but it's difficult to gauge to what extent I should return for a follow-up... Therefore, I ...
Dr. Gao Pilin Reply:
Hello Winnie, Q1. "The symptoms caused by the vitreous pulling on the retina," are these similar to floaters in that they are unlikely to disappear? When the vitreous no longer pulls on the retina, the symptoms will resolve. This indicates that the vitreous has detache...[Read More] Understanding Symptoms of Vitreous Detachment and Their Impact on Vision
Understanding Floaters and Retinal Health: Key Questions Answered
Floaters and related issues? Thank you, doctor, for your response. I would like to ask the doctor the following questions: 1. What lifestyle habits or bad habits have a greater impact on retinal diseases? 2. Regarding the increase in floaters (such as spots), does a slight incr...
Dr. Gao Pilin Reply:
Hello Hank: 1. What bad habits or hobbies in daily life have a greater impact on retinal diseases? Answer: Excessive eye strain (overuse of electronic devices), exposure to ultraviolet rays, and blue light can significantly harm the retina. 2. Does a slight increase in floate...[Read More] Understanding Floaters and Retinal Health: Key Questions Answered
Understanding High Myopia and Its Connection to Floaters and Retinal Risks
High myopia and floaters? Hello, doctor. I would like to ask you a few questions: 1. I have high myopia, with pre-dilation measurements of 1025/1050 and post-dilation measurements of 925/950. At my age, will my myopia continue to increase? 2. I have regular check-ups for floa...
Dr. Gao Pilin Reply:
Hello HANK: 1. I have high myopia, with measurements of 1025/1050 before dilation and 925/950 after dilation. Will my myopia increase at this age? Answer: Generally, it is unlikely to increase. 2. I regularly check for floaters, and there are no major issues. I observe that b...[Read More] Understanding High Myopia and Its Connection to Floaters and Retinal Risks
Understanding Intermittent Treatment for High Eye Pressure
High intraocular pressure issues? Hello, Doctor: I have a problem with elevated intraocular pressure, but my visual field test is normal. The physician's approach to managing the elevated intraocular pressure is to prescribe pressure-lowering eye drops only if my eye pressur...
Dr. Gao Pilin Reply:
Hello Mr. Wang: If your visual field and optic nerve are normal but your intraocular pressure is elevated, it is sometimes necessary to measure the corneal thickness. A thicker cornea can contribute to higher pressure readings. The use of eye drops to lower intraocular pressure i...[Read More] Understanding Intermittent Treatment for High Eye Pressure
Understanding Optic Nerve and Retina Thinning in High Myopia
Optic nerve & retina Hello Doctor: I have high myopia (550, 600). Yesterday, I underwent a routine dilated eye exam (showing retinal thinning, non-patterned degeneration) and also had a fundus scan. The report indicated that the optic nerves in both eyes are thinning, and I n...
Dr. Gao Pilin Reply:
Hello May: The thinning of the optic nerve can sometimes be congenital, so a visual field test is necessary to determine if there are any abnormalities. High myopia can lead to thinning of the peripheral retina, but it does not necessarily result in holes or retinal detachment. T...[Read More] Understanding Optic Nerve and Retina Thinning in High Myopia
Understanding Physiological Blind Spots and Visual Distortions
Questions about physiological blind spots? My left eye has a prescription of nearly 800 to 900, while my right eye is 750. I have a significant number of floaters in both eyes, which has been a longstanding issue. I have been taking lutein for over a year, and during my annual he...
Dr. Gao Pilin Reply:
Hello, Hsuan: The blind spot refers to an area where no visual information is perceived. Are you referring to the regions surrounding the blind spot? The blind spot is located at the optic nerve head, and in cases of high myopia, there may be some traction or undulation of the re...[Read More] Understanding Physiological Blind Spots and Visual Distortions
Blurred Vision and Eye Pain After Trauma: Seeking Answers
The right eye was struck, resulting in blurred vision and a sensation of heat and pain in the eye? In May of this year, my boyfriend was struck in the right eye by a blunt object, and since then, he has experienced blurred vision, but no diplopia, constricted visual fields, or di...
Dr. Gao Pilin Reply:
Hello: It feels like there is pain in the eyeball, and sometimes it may be pain deep within the eyeball, which can be caused by adjacent tissues. It is important to be aware of conditions such as increased intracranial pressure, meningitis, neurosyphilis, arteriosclerosis, and pi...[Read More] Blurred Vision and Eye Pain After Trauma: Seeking Answers