Understanding Persistent Eye Flashes: Causes and Concerns
Persistent seeing of flashes of light? Hello, doctor. About last Thursday night, I noticed a small area in my vision that felt blurry, but I could still see clearly overall. It felt as if I was looking through a layer of mist in certain parts of my visual field. Additionally, I s...
Dr. Gao Pilin Reply:
Hello, Quan: Based on your symptoms, I still believe it is related to vitreous degeneration. When the vitreous detaches from the retina, it can cause the symptoms you described. This condition usually improves over time, so I recommend not to worry too much. Before the examinatio...[Read More] Understanding Persistent Eye Flashes: Causes and Concerns
Understanding Eye Issues: Dry Eyes, Floaters, and Night Vision Concerns
Eye problems Hello, Doctor. I visited several clinics in July and August due to dry eyes (with a tear break-up time of 7.2) and an increase in floaters. All examinations (visual field, fundus, macula) were normal, and I was prescribed artificial tears. By September, my symptoms s...
Dr. Gao Pilin Reply:
Hello: 1. This symptom is likely to be floaters. 2. Rainbow circles can sometimes be caused by corneal edema or secretions, and dry eyes can also lead to this phenomenon. Sometimes, wearing glasses can cause similar effects due to lens refraction or humidity. If the visual field,...[Read More] Understanding Eye Issues: Dry Eyes, Floaters, and Night Vision Concerns
Understanding Glaucoma: Navigating Conflicting Eye Exam Results
Glaucoma issues Hello, Director: (1) Can you please tell me if the following examination results are normal? Slit lamp examination: OU C: hyperemia K: c AC: DC L: c disc: c/d 0.4 (2) I underwent a fine ultrasound examination at a major hospital, and the doctor's conclusion w...
Dr. Gao Pilin Reply:
Hello Mr. Wang: If your visual field is normal and your intraocular pressures are 19 and 17 mmHg, these are considered normal. The cup-to-disc ratio of your optic nerve is 0.4, which means you generally do not need to use glaucoma eye drops. You can continue to monitor your intra...[Read More] Understanding Glaucoma: Navigating Conflicting Eye Exam Results
Understanding the Criteria for Applying for Mild Visual Impairment
Standards for Applying for Mild Visual Impairment Hello Doctor: Currently, my corrected vision is 0.2 in the left eye and 0.2 in the right eye. I have found that the criteria for mild visual impairment are as follows: 1. Both eyes have a corrected vision of less than 0.3, or the ...
Dr. Gao Pilin Reply:
Dear Mr. Yi, As long as you meet one of the criteria, your corrected vision is 0.2 in the right eye and 0.2 in the left eye, which satisfies the first condition that both eyes have a corrected vision of less than 0.3. Therefore, you are eligible to submit an application. Taiwan...[Read More] Understanding the Criteria for Applying for Mild Visual Impairment
Understanding Visual Field Tests for High Myopia and Cataracts
I would like to inquire about issues related to visual field testing in individuals with high myopia? Hello, doctor. I would like to ask some questions regarding visual field testing. Aside from glaucoma, which can show localized areas of vision loss, 1. In patients with high myo...
Dr. Gao Pilin Reply:
Hello, 1. Changes in the retina caused by high myopia can lead to visual field defects, which are discontinuous and related to the location of the retinal damage. The visual field changes associated with high myopia and glaucoma include arcuate defects extending from the superi...[Read More] Understanding Visual Field Tests for High Myopia and Cataracts
Understanding Glaucoma: Insights from Ultrasound Examination Results
Microscale Ultrasound Examination Hello, Doctor: 1) At the beginning of June, I went to the ophthalmology department for a fine ultrasound examination for glaucoma, and the results were as follows: Diagnosis: 365.10 Open-angle glaucoma, unspecified; 377.51 Disorders of optic ch...
Dr. He Jianxian Reply:
It seems that you do not have the results of a visual field test. It is recommended to undergo a visual field test for more accurate results. If glaucoma is confirmed, most medications will need to be used for a lifetime. Additionally, corneal thickness can indeed affect intraocu...[Read More] Understanding Glaucoma: Insights from Ultrasound Examination Results
Understanding High Eye Pressure and Its Impact on Vision: Key Insights
Elevated intraocular pressure and optic nerve? Hello Doctor, Last year I was diagnosed with high intraocular pressure, so I have been going to the hospital for examinations and follow-ups. Over the past year, the average intraocular pressure readings for my left and right eyes ...
Dr. He Jianxian Reply:
1. The physiological blind spot is normal; if you look at an object with one eye positioned at the location of the physiological blind spot, it will indeed be invisible. 2. The perspective of the blind spot when viewing distant objects is exactly the same.[Read More] Understanding High Eye Pressure and Its Impact on Vision: Key Insights
Understanding Allergic Conjunctivitis and Its Impact on Eye Health
Allergic conjunctivitis I have been troubled by allergic conjunctivitis for six months, but during this time, I have seen an ophthalmologist, and my intraocular pressure has ranged between 17-22 mmHg. The corneal thickness was also measured and found to be about 10 micrometers le...
Dr. Gao Pilin Reply:
Hello: Both the OCT and visual field tests are normal, and the intraocular pressure is nearly normal, so glaucoma can be ruled out for now. However, regular follow-ups are still necessary. The eye discomfort and pressure you are experiencing are mostly due to eye strain, and sinc...[Read More] Understanding Allergic Conjunctivitis and Its Impact on Eye Health
Understanding Sudden Flashing Lights in Vision: Causes and Concerns
Sudden appearance of flashing lights in the vision, resembling visual noise? Hello, doctor. Recently, due to paperwork, I have been spending a lot of time in front of the computer screen. However, this afternoon and evening, after using the computer for about an hour, I experienc...
Dr. Gao Pilin Reply:
Hello Ashu: Usually, seeing flashes of light is caused by traction on the retina. Sometimes it lasts for a short time, just a quick flash, and there may not be any changes in vision; it is not related to fatigue, and warm compresses are not very helpful. If there are no abnormali...[Read More] Understanding Sudden Flashing Lights in Vision: Causes and Concerns
Post-Retinal Detachment Surgery: Common Concerns and Recovery Tips
Post-retinal detachment surgery Hello Doctor, I had retinal detachment surgery a month ago. The gas has dissipated, and I have returned to my normal sleeping position. Two weeks ago, I noticed floaters and flashes of light, and after a dilated eye exam at the clinic, they said th...
Dr. Gao Pilin Reply:
Hello, Hong Hong: 1. If there are no changes or increases in floaters and flashes, and since you have already been checked with no new retinal tears, it should be considered a normal phenomenon. 2. However, you need to closely monitor any changes in your vision and visual field,...[Read More] Post-Retinal Detachment Surgery: Common Concerns and Recovery Tips
Understanding Eye Blood Vessels: Are They a Cause for Concern?
Is there a relationship with blood streaks? Hello, doctor. I usually wear contact lenses two to three days a week, for about 8 hours each time. I have an eye examination every year, and I undergo optical coherence tomography and visual field tests every two years. My intraocular ...
Dr. Gao Pilin Reply:
Hello, A-Hsing: Based on your description, it seems to be normal vascular tissue on the conjunctiva. There are many microvessels in the conjunctiva, and when the eyes feel uncomfortable, these vessels can become engorged, making the eyes appear red. There is no need to worry abou...[Read More] Understanding Eye Blood Vessels: Are They a Cause for Concern?
Understanding Visual Phenomena: Floaters and Blind Spots Explained
Monocular vision obstruction at certain angles in the dark? Hello, Doctor Gao. I would like to ask you a couple of questions. I have been experiencing floaters for about 20 years. After undergoing laser treatment for a retinal tear, I have been consistently visiting the clinic fo...
Dr. Gao Pilin Reply:
Hello Andres: 1. If it is floaters, there are no methods to reduce their occurrence frequency. 2. The physiological blind spot is located just outside the center of the visual field and is generally at the same horizontal level as the center of the visual field. If this is the ca...[Read More] Understanding Visual Phenomena: Floaters and Blind Spots Explained
Understanding Eye Flashes and Shadows: Causes and Solutions
The eyes are experiencing persistent flashes and floaters? Hello, doctor. I apologize for bothering you. I have had my eyes examined (including fundus and visual field tests), and the doctors have said everything is normal, but they did mention that I have some symptoms of floate...
Dr. Gao Pilin Reply:
Hello, Ya: Excessive fatigue may not have a significant impact; it is a change in the vitreous body itself. This symptom can be intermittent, and if the doctor has confirmed it as floaters, there is no need for concern. You should also be mentally prepared to coexist with it for ...[Read More] Understanding Eye Flashes and Shadows: Causes and Solutions
Understanding Laser Eye Damage: Symptoms and Risks Explained
Laser injury Hello Doctor: I would like to ask a question, as there is not much information available online regarding this issue. If someone were exposed to a green laser with a power of 1-5 mW, is it possible for them to see numerous faint flickering white spots (that are stati...
Dr. Gao Pilin Reply:
Hello Winnie the Pooh: Lasers can cause retinal damage, but a sufficient energy level is required; exposure to 1-5 mW should pose minimal risk. Retinal lasers operate at much higher energy levels and need to be focused to cause burns. Furthermore, after a burn, there will be a bl...[Read More] Understanding Laser Eye Damage: Symptoms and Risks Explained
Understanding Black Shadows in Your Left Eye: Is It Floaters or Something Else?
Seeing shadows in the left eye? Hello Doctor, thank you for your response. I have a concern. Recently, I have noticed a dark shadow in the upper left area of my left eye when I relax, and when I cover my right eye and look at things with my left eye, the center appears darker. Co...
Dr. Gao Pilin Reply:
Hello, if the visual field test and retinal examination show no issues, the shadow you are experiencing may be due to vitreous floaters. Amblyopia does not present with such phenomena. So let's wait for the completion of the examinations and see what the doctor says! Don...[Read More] Understanding Black Shadows in Your Left Eye: Is It Floaters or Something Else?
Understanding the Use of Eyedrops for Glaucoma: A Patient's Concern
Ivermectin eye drops Hello Doctor, I am 24 years old and have severe myopia, with both eyes at -800 diopters. Earlier this year, I had an examination at a hospital in the northern part of Taiwan, where the doctor informed me that I might have glaucoma, as my intraocular pressure...
Dr. He Jianxian Reply:
If you have concerns about glaucoma, it is advisable to consult with an ophthalmologist for a more definitive assessment, as I do not have the necessary information to make a clear determination. Regarding astigmatism-related visual disturbances, if you have already seen four oph...[Read More] Understanding the Use of Eyedrops for Glaucoma: A Patient's Concern
Understanding Visual Disturbances in High Myopia: Causes and Concerns
Case Studies of Ocular Abnormalities Hello Doctor: Initially, I suspected that I was exposed to a green laser with an intensity of about 1-2 mW, which caused me to experience numerous white spots or black shadows flickering in my visual field over the past few months (similar to ...
Dr. Cai Wenyuan Reply:
Hello, myopia indicates that the image is formed in front of the retina, which is why individuals with high myopia have a longer axial length. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry ...[Read More] Understanding Visual Disturbances in High Myopia: Causes and Concerns
Understanding Fluctuating Eye Pressure: Risks and Management Strategies
Intraocular pressure fluctuations? Hello Doctor, I am 22 years old and have myopia of about -6.00 in both eyes. My previous job required long hours of using electronic devices, and I often stayed up late (though I have reduced this and my routine is now normal). I have a history ...
Dr. Gao Pilin Reply:
Hello Mr. Liu: 1. How can glaucoma be detected? The primary methods include measuring intraocular pressure, assessing the condition of the optic nerve, and conducting visual field tests. By integrating these findings, we can determine the presence of glaucoma. 2. When doctors e...[Read More] Understanding Fluctuating Eye Pressure: Risks and Management Strategies
Does Long-Term Use of Glaucoma Medications Cause Cataracts?
Does long-term use of glaucoma medications lead to cataracts? Hello Doctor: First, let me explain my situation. I have been diagnosed with retinitis pigmentosa (night blindness and constricted visual fields), congenital nystagmus, and amblyopia since childhood, with both eyes hav...
Dr. He Jianxian Reply:
1. The glaucoma medication you are currently using should not have a risk of causing cataracts. 2. There is currently no effective treatment for pigmentary retinal degeneration, and this condition is indeed often associated with the occurrence of cataracts. As for glaucoma, there...[Read More] Does Long-Term Use of Glaucoma Medications Cause Cataracts?
Understanding Suspected Glaucoma: Early Signs and Preventive Measures
Suspected glaucoma? Hello, doctor. I recently had an OCT examination at the ophthalmology department, and there is a small depression in the red area of the optic nerve head, approximately 0.5. My intraocular pressure is 17 in one eye and 18 in the other. The doctor mentioned a s...
Dr. He Jianxian Reply:
1. Whether it is in the early stage depends on the extent of the visual field loss. 2. If there is no glaucoma, it is not recommended to use eye drops for prevention.[Read More] Understanding Suspected Glaucoma: Early Signs and Preventive Measures