Can High Myopia Cause Enlarged Blind Spots and Visual Shadows?
Does high myopia cause an expansion of blind spots? + Visual shadows in dimly lit areas? Hello Doctor, I have a few questions I would like to ask. 1. I noticed in the past year or two that when I close one eye, I can see a dark area near my blind spot in both eyes. Previously, ...
Dr. Gao Pilin Reply:
Hello: 1. High myopia and the expansion of the blind spot associated with high myopia (1000 and 1200 diopters) can indeed lead to retinal degeneration, which may affect the structures surrounding the optic nerve, resulting in an enlarged blind spot. Although your OCT scan shows...[Read More] Can High Myopia Cause Enlarged Blind Spots and Visual Shadows?
Understanding Eye Discomfort: Dryness, Inflammation, and Glaucoma Risks
Fundus examination, dry eyes? Hello Doctor, since January of this year, I have been experiencing dryness, tightness, and a feeling of pressure in my eyes. Artificial tears have not been effective. My eyesight is approximately 700 degrees in both eyes. I proactively asked my docto...
Dr. Gao Pilin Reply:
Hello: 1. Congenital Thinner Cornea or Optic Nerve: Some individuals may be born with a thinner cornea or optic nerve than normal. This can be due to genetic factors or individual variations and does not necessarily indicate a disease. However, it may increase the risk of certa...[Read More] Understanding Eye Discomfort: Dryness, Inflammation, and Glaucoma Risks
Understanding Visual Disturbances: Allergies, Dry Eyes, and Recovery
Seeing noise in the sky and on walls? Hello, Doctor. I am an engineer, and I have been experiencing significant eye strain over the past few months. About a month ago, I developed eye inflammation, and after seeing a doctor, I was told it was due to allergies. However, I have bee...
Dr. Gao Pilin Reply:
Hello: 1. The reasons for seeing visual noise (visual snow syndrome) in the situations you mentioned may include: - Eye fatigue: Prolonged use of electronic devices can lead to overexertion of the ciliary muscles, resulting in visual disturbances. - Dry eye syndrome: Dr...[Read More] Understanding Visual Disturbances: Allergies, Dry Eyes, and Recovery
Understanding Visual Field Issues: Are They Related to Floaters?
Visual field issues Hello doctor, I recently noticed that when I look at something with one eye, a certain point just outside the center of my vision causes that object to disappear. Both eyes have the same condition, and the object seems to blend into the background. Could this ...
Dr. Gao Pilin Reply:
Hello: Based on your description, the phenomenon of objects disappearing at a certain point in the central vision of one eye, and both eyes experiencing the same condition, may be related to issues with the retina or optic nerve. Floaters typically present as floating black dots ...[Read More] Understanding Visual Field Issues: Are They Related to Floaters?
Should You See a Doctor for Hard Eyes? Understanding Glaucoma Risks
Eye strain? Doctor, I apologize for the interruption. I recently researched online and found that hard eyeballs could be a sign of glaucoma. My eyes feel hard, and although I have been feeling nauseous, I usually experience that. I don't have any other discomfort. Should I s...
Dr. Gao Pilin Reply:
Hello: You mentioned experiencing eye strain and a sensation of hardness in your eyeball, which are indeed symptoms that require attention. Increased hardness of the eyeball may indicate elevated intraocular pressure, which is one of the potential signs of glaucoma. If glaucoma i...[Read More] Should You See a Doctor for Hard Eyes? Understanding Glaucoma Risks
Understanding Eye Ultrasound: Safety and What to Expect
Ocular ultrasound examination Hello, Doctor: Today, I noticed a brief appearance of a white fog and went to see an ophthalmologist. The ophthalmologist performed an ultrasound examination to check for floaters and applied anesthetic drops before the procedure. I felt no discomfor...
Dr. Gao Pilin Reply:
Hello: 1. Safety of Ocular Ultrasound Examination Ocular ultrasound examination is a very safe and commonly used diagnostic tool for assessing the internal structures of the eye, such as the vitreous body, retina, and optic nerve. This technique utilizes high-frequency sound ...[Read More] Understanding Eye Ultrasound: Safety and What to Expect
Understanding High Eye Pressure: Insights on Diagnosis and Treatment
Ocular hypertension Hello, Dr. Gao. Due to high myopia, with prescriptions of -800 and -700 diopters, my tonometry readings have reached a maximum of 24 mmHg, mostly ranging between 21 and 22 mmHg. When using a handheld tonometer, the readings are around 18 and 17 mmHg. I have co...
Dr. Gao Pilin Reply:
Hello: Based on the detailed information you provided, here are my recommendations and explanations: 1. Should you continue using eye drops? Given your high myopia and elevated intraocular pressure, you belong to a high-risk group for glaucoma, making the preventive use of intra...[Read More] Understanding High Eye Pressure: Insights on Diagnosis and Treatment
Common Eye Issues: Understanding Shadows, Light Sensitivity, and Glaucoma
Eye-related issues? Doctor, I have some questions I would like to ask: 1. Recently, whenever I am in sunlight (even just a little), I see dark, shadow-like lines in front of my eyes. Could this be due to my long eyelashes casting a shadow that I am perceiving? Is this a possibi...
Dr. Gao Pilin Reply:
Hello: 1. Seeing black streaks in sunlight: This condition is likely what you are experiencing as "floaters." Floaters are caused by changes in the vitreous body of the eye and typically become more noticeable with age. While it is possible that your eyelashes may cas...[Read More] Common Eye Issues: Understanding Shadows, Light Sensitivity, and Glaucoma
Seeing Afterimages Upon Waking: Possible Causes and Concerns
Waking up in the middle of the night with afterimages? Hello Doctor, I have a sleeping environment with a small night light and a ceiling fan. For the past three days, when I wake up in the middle of the night and open my eyes, I see a faint afterimage of the fan illuminated by t...
Dr. Gao Pilin Reply:
Hello: Based on your description, you see afterimages of the fan when you open your eyes in the dark or dimly lit environment, and these afterimages disappear after a few seconds. You have a history of dry eye syndrome and retinal tears, and you are taking cold medication and pro...[Read More] Seeing Afterimages Upon Waking: Possible Causes and Concerns
Experiencing Brief Blackouts in Vision: Eye or Neurological Issue?
Even though there is no blinking, it visually appears as if the eyes are blinking? Hello, doctor. Since February, I have been experiencing a strange condition. Visually, it feels like I blinked (a very brief moment of darkness lasting a fraction of a second, then immediately retu...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described and the results of the various tests conducted, this situation is indeed somewhat complex. Here are several possible considerations: 1. Vitreous Degeneration: This is a common phenomenon, especially as one ages, where the vitreous may u...[Read More] Experiencing Brief Blackouts in Vision: Eye or Neurological Issue?
Understanding Retinal Detachment: Symptoms and Early Warning Signs
Retinal detachment Doctor, I would like to ask a few questions: Is it necessary to see shadows before retinal detachment occurs? What are the warning signs that may indicate retinal detachment? Also, what are the warning signs of glaucoma? Thank you, doctor; I really want to know...
Dr. Gao Pilin Reply:
Hello: Symptoms and Warning Signs of Retinal Detachment Retinal detachment is a serious ophthalmic emergency that requires prompt treatment. When the retina detaches from its underlying tissue, it can lead to vision loss. Here are common warning signs and symptoms: 1. Flashes...[Read More] Understanding Retinal Detachment: Symptoms and Early Warning Signs
Understanding Persistent Flashes After Posterior Vitreous Detachment
Posterior vitreous detachment Can posterior vitreous detachment cause persistent flashes of light? Specifically, can these flashes last for 24 hours, even noticeable with closed eyes? What could persistent flashes indicate? I do not have blurred vision, but I do experience sympto...
Dr. Gao Pilin Reply:
Hello: Posterior vitreous detachment is one of the common ocular changes in individuals with high myopia, especially prevalent among middle-aged and older populations. During this process, the vitreous (a transparent gel-like substance within the eye) separates from the back of t...[Read More] Understanding Persistent Flashes After Posterior Vitreous Detachment
Understanding Eye Issues: Green Lights, Floaters, and Visual Distortions
Eye problems Hello, doctor. I have some questions I would like to ask. Sometimes when I move my eyes (not very quickly), I see a "green" light (a patch). As a student, I spend quite a long time using my eyes, so I feel that my floaters have become more pronounced. Is th...
Dr. Gao Pilin Reply:
Hello: 1. Seeing "green" light when moving your eyes: The situation you described may be related to vitreous traction on the retina, which can trigger photopsia, such as flashes of light or seeing green spots during eye movement. If this phenomenon occurs frequently o...[Read More] Understanding Eye Issues: Green Lights, Floaters, and Visual Distortions
Understanding Monocular Diplopia: Causes, Diagnosis, and Treatment Options
Monocular diplopia Hello, Director: I apologize for taking up your time! I have been wearing glasses for my myopia for 40 years, with each eye approximately -500 degrees. In early April of this year, I noticed some blurriness in my left eye, and after an examination, my uncorrect...
Dr. Gao Pilin Reply:
Hello: Possible causes of postoperative vertical diplopia include: 1. Refractive issues: Despite having new glasses prescribed after surgery, there may still be some refractive errors that have not been fully corrected, leading to diplopia. This requires further examination by an...[Read More] Understanding Monocular Diplopia: Causes, Diagnosis, and Treatment Options
Understanding Blurry Vision with Soft Contact Lenses: A Guide for High Myopia
One eye is blurry with soft contact lenses? Hello Doctor: I have high myopia (the most recent measurement was two weeks ago: left eye approximately -1200 diopters with astigmatism of -175; right eye approximately -1075 diopters with astigmatism of -175). However, each time I have...
Dr. Gao Pilin Reply:
Hello: Based on the situation you described, there are several possible reasons that could explain your vision fluctuations: 1. Inconsistent prescription between glasses and contact lenses: You mentioned that the prescriptions for your glasses and contact lenses differ, which ma...[Read More] Understanding Blurry Vision with Soft Contact Lenses: A Guide for High Myopia
Understanding Blurry Vision: Insights on Retinal Health and Nerve Myelin
Blurred vision (Sequence 208652) Hello Dr. Gao, Today I had an ophthalmology appointment where I underwent OCT and dilated fundus examination. Everything is normal except for the peripheral retina in my right eye, which is thinner (the doctor mentioned it resembles that of some...
Dr. Gao Pilin Reply:
Hello: Myopia patients exhibit posterior elongation of the eyeball due to an increase in axial length, leading to degeneration of the choroid and retina surrounding the optic nerve. This is a common occurrence and should not be a cause for concern. Optic Nerve Myelination refer...[Read More] Understanding Blurry Vision: Insights on Retinal Health and Nerve Myelin
Understanding Blurry Vision: Causes and Solutions for Myopia and Astigmatism
Blurred vision Hello, Doctor. I would like to inquire about my condition. I have myopia of -4.75 and astigmatism of -0.50 / -3.50. My vision in both eyes became blurry around January, and after an eye exam, my prescription increased. However, I later underwent other tests, includ...
Dr. Gao Pilin Reply:
Hello: Based on the detailed information you provided, the fluctuations in vision in your right eye may be caused by various factors. Here are several possible reasons and recommendations: 1. Eye Strain: Prolonged use of mobile phones and electronic devices can lead to eye fatig...[Read More] Understanding Blurry Vision: Causes and Solutions for Myopia and Astigmatism
Understanding the Difference Between Eye Prescription and Visual Acuity
"Degree" and "visual acuity" of the eyes? I have myopia in both eyes, with the same degree of -3.50 diopters. However, during a vision test (using a pinhole), my left eye scored 0.6 and my right eye scored 0.9. I would like to ask: 1. Will this difference in v...
Dr. Gao Pilin Reply:
Hello: 1. Vision disparity and dominant eye: Such a vision disparity can indeed lead you to rely more on your right eye in daily life. The better vision in your right eye naturally encourages you to use it more for visual activities, resulting in less frequent use of your left ...[Read More] Understanding the Difference Between Eye Prescription and Visual Acuity
Understanding Vision Issues: Glaucoma, Floaters, and Eye Clarity
Poor vision? I have early-stage glaucoma and floaters (with regular check-ups). Hello, doctor. I would like to ask about my condition. I have over 600 degrees of myopia and flashes. Currently, I wear glasses for distance vision. When looking at distant objects with one eye, my le...
Dr. Gao Pilin Reply:
Hello: It is quite common for one eye to be sharper than the other. Additionally, it is related to the prescription of your glasses. If the glasses are prescribed with a slightly stronger power than your actual eye prescription, it may appear sharper. Conversely, if the prescript...[Read More] Understanding Vision Issues: Glaucoma, Floaters, and Eye Clarity
Understanding Vision Issues: Thin Optic Nerve and Shadow Symptoms
Regarding visual field issues? Hello doctor, about three months ago, I was diagnosed with thinning of the optic nerve in the upper part of both eyes. The doctor mentioned that the thickness is approximately 79, while the lower part is normal at 100. The night before last, while m...
Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, the fact that the shadow changes position with the movement of your face suggests that it is less likely to be related to an optic nerve issue. However, an examination is still necessary to clarify the problem. Here are several steps yo...[Read More] Understanding Vision Issues: Thin Optic Nerve and Shadow Symptoms