Understanding Shadows in Vision: Dry Eyes and Floaters Explained
Eye corner shadow Excuse me, doctor. I have dry eye syndrome and floaters, with myopia not exceeding 400 degrees and astigmatism not exceeding 300 degrees. Recently, I occasionally notice slight shadows when looking slightly down to the left and right, and when I tilt my head sli...
Dr. He Jianxian Reply:
It is likely that you are referring to floaters; I recommend undergoing a dilated eye examination by an ophthalmologist.[Read More] Understanding Shadows in Vision: Dry Eyes and Floaters Explained
Understanding Retinal Pallor: Implications for Vision and Eye Health
Retinal pallor Hello, Doctor: Recently, I went to an ophthalmology clinic for a dilated eye examination because I saw shadows in my vision. After the examination, the doctor mentioned that a part of my left retina appeared paler, but advised me to monitor the situation. However, ...
Dr. He Jianxian Reply:
It is unclear what you mean by a part of the retina appearing paler. It is highly unlikely to be a stroke, as the examining physician would certainly explain this to you on the spot if it were the case. It would be more appropriate for you to consult the original examining physic...[Read More] Understanding Retinal Pallor: Implications for Vision and Eye Health
Understanding Floaters: When to Worry About Your Eye Health
The issue of floaters? Hello Doctor, I have been experiencing floaters for about two years now. Over the past year, I sometimes notice that when I look at bright lights like street lamps or car headlights, the light seems to linger in my vision, and I have to blink hard for it to...
Dr. Cai Wenyuan Reply:
Hello: Every time I go for an eye examination, the doctor says there are no issues, but I am very worried that perhaps the examination was not thorough enough. I kindly ask the doctor to provide me with more information. Thank you, I am really concerned. I feel that the floaters ...[Read More] Understanding Floaters: When to Worry About Your Eye Health
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 Severe Floaters: Impact of Screen Time on Eye Health
Severe floaters syndrome Hello Doctor: I have been experiencing floaters for the past 10 years, but the symptoms were mild and did not affect my daily life. However, in the past two years, due to my job requiring me to stare at a computer for over 8 hours a day, the floaters have...
Dr. He Jianxian Reply:
1. The occurrence of floaters is likely not significantly related to your work; it primarily results from the degeneration and shrinkage of the vitreous body, so continuing to engage in computer-related work should not have a major impact. 2. There is not much correlation between...[Read More] Understanding Severe Floaters: Impact of Screen Time on Eye Health
Understanding Floaters: When to Worry About Eye Health Issues
Vitreous floaters and flashes? Hello, doctor. I would like to inquire about my concerns regarding floaters. I have had floaters for five years, with myopia in both eyes of 500-600 degrees and astigmatism of 1-200 degrees. When they first appeared five years ago, I had an eye exam...
Dr. Cai Wenyuan Reply:
Hello, 1. It can also be considered as floaters. 2. There is no such terminology. 3. Seek medical examination. Wishing you peace, health, and well-being. Sincerely, Dr. Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Floaters: When to Worry About Eye Health Issues
How Long Can Normal Tension Glaucoma Be Managed Effectively?
How long can normal-tension glaucoma (NTG) typically be controlled on average? Hello, Doctor. During an eye examination at an external clinic, it was found that my optic disc is larger than normal. The doctor performed an OCT and noted that the optic nerve in my right eye is thin...
Dr. Cai Wenyuan Reply:
Hello: I apologize, but it is best to consult your attending physician regarding your question. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] How Long Can Normal Tension Glaucoma Be Managed Effectively?
Understanding Discrepancies in Children's Vision Test Results
Children's Vision Screening Issues Hello Doctor, my child is currently nine years old. Yesterday, at a large hospital, a vision test was conducted, and the nurse recorded a visual acuity of 0.3 with a refraction of approximately -1.00 diopters and -1.25 diopters (with astigm...
Dr. Cai Wenyuan Reply:
Hello, the data from the eye examination (prior to dilation) can indeed vary. It is important to pay attention to children's eye habits and to conduct regular follow-ups. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan General ...[Read More] Understanding Discrepancies in Children's Vision Test Results
Why Do I See Quick Black Shadows in My Peripheral Vision?
There are dark shadows quickly passing through my peripheral vision? Hello doctor, I would like to ask why sometimes I suddenly see a shadow quickly passing by in my peripheral vision (in both eyes, not directly in front). This occurs when I stretch or sometimes appears out of no...
Dr. He Jianxian Reply:
Your condition may be related to floaters; it is recommended that you undergo a dilated eye examination with an ophthalmologist.[Read More] Why Do I See Quick Black Shadows in My Peripheral Vision?
Understanding Macular Degeneration: Symptoms, Risks, and Next Steps
Regarding the macula? Hello, Doctor. I have an eye examination every six months, but I haven't gone this time (the last one was about eight months ago). I was previously informed that I have macular degeneration, which the doctor mentioned is common in people with high myopi...
Dr. Cai Wenyuan Reply:
Hello, please minimize eye strain and take regular breaks. Regular check-ups are important, so there's no need to worry too much. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Heal...[Read More] Understanding Macular Degeneration: Symptoms, Risks, and Next Steps
Understanding Glaucoma: When to Seek Further Eye Examinations
Glaucoma examination? Hello Dr. Tsai, I would like to ask about fundus examination. In general ophthalmology clinics, they usually administer dilating drops and then use light to examine the eyes. Does this mean that if there are no issues, further fundus photography or optic ner...
Dr. Cai Wenyuan Reply:
Hello, intraocular pressure can vary throughout the day, and assessing glaucoma should not rely solely on eye pressure. It is important to consider the condition of the optic nerve and visual fields. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Oph...[Read More] Understanding Glaucoma: When to Seek Further Eye Examinations
Understanding Eye Health Supplements: Usage and Safety for Vision Care
Vision health supplements issues? Recently, I noticed an increase in floaters and went for a regular eye examination. The doctor said there were no issues with my retina and that it was due to eye fatigue. He recommended a bottle of Neoaster, but I'm a bit unclear about when...
Dr. Gao Pilin Reply:
Hello, Neoaster contains lutein, DHA, and some vitamins. A daily dosage of 30mg of lutein is sufficient; you should check your medication dosage, as taking more will not provide additional benefits. Consistent daily intake helps maintain a certain concentration, which is benefici...[Read More] Understanding Eye Health Supplements: Usage and Safety for Vision Care
Can Facial X-Rays Cause Cataracts? Understanding Eye Health Risks
Facial X-rays can cause cataracts? Hello Dr. Tsai, I recently had an eye examination, and both of my eyes showed no myopia, but I was diagnosed with a slight cataract. I was a bit shocked since I am only thirty years old. The doctor mentioned that my condition is in the anterior...
Dr. Cai Wenyuan Reply:
Hello, facial X-rays do not cause cataracts. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Can Facial X-Rays Cause Cataracts? Understanding Eye Health Risks
Understanding Vitreous Detachment: Managing Floaters and Flashes in Myopia
Floaters, vitreous degeneration, retina? Hello! I have high myopia and astigmatism in both eyes, with myopia over 600 degrees and astigmatism over 300 degrees. In August of this year, I noticed black shadows floating in my vision. After an examination, it was confirmed that I hav...
Dr. He Jianxian Reply:
Flashes of light are caused by the vitreous pulling on the retina, and they do not necessarily lead to a tear, nor is there an absolute correlation with retinal detachment. When the pulling force diminishes (which may occur if the vitreous separates from the retina, but could als...[Read More] Understanding Vitreous Detachment: Managing Floaters and Flashes in Myopia
Understanding Retinal Issues: When to Seek Eye Care for Symptoms
Retinal issues Hello, doctor. My myopia is -800 diopters in my left eye and -675 diopters in my right eye. Last year, I gradually developed floaters, and this year I started experiencing flashes of light (similar to lightning). Initially, it occurred once a month, but now I exper...
Dr. He Jianxian Reply:
The timing for a flash and floaters examination is primarily when there is a first occurrence or a significant increase in frequency. Additionally, if there is a substantial increase in floaters accompanied by flashes, a dilated eye examination is also recommended. Wishing you go...[Read More] Understanding Retinal Issues: When to Seek Eye Care for Symptoms
Understanding Visual Distortions: Why Do Objects Appear Twisted?
Objects appear to twist and distort when viewed? When looking at objects, if the eyeballs do not move, one may notice slight movements of the objects. This is particularly noticeable when looking at a computer screen, where the text layout appears disorganized, sometimes leaning ...
Dr. Cai Wenyuan Reply:
Hello, the examination is fine; it may be a temporary phenomenon. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Visual Distortions: Why Do Objects Appear Twisted?
Understanding Rainbow Vision: Causes and Concerns in Eye Health
Heterochromia of the eyes About a week ago, I started noticing a faint rainbow halo when looking closely at white streetlights. Sometimes I see it, and sometimes I don't, but when I look from a distance, I no longer see the halo. I also don't see the rainbow halo around...
Dr. Cai Wenyuan Reply:
Hello: The examination is normal. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Rainbow Vision: Causes and Concerns in Eye Health
Understanding Black Shadows in Vision: Causes and Concerns
When jumping, there are dark spots in front of my eyes? Hello Doctor: I have myopia of about 800 degrees in both eyes and also have astigmatism. Last week, I noticed several black spots clustered together in the upper left corner of my left eye's visual field for two consecu...
Dr. Cai Wenyuan Reply:
Hello, it should be similar symptoms. Wishing you peace and health. Sincerely, Dr. Cai Wenyuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Black Shadows in Vision: Causes and Concerns
Understanding Eye Symptoms: What Does a Bright Line When Blinking Mean?
When blinking, I see a bright line in my vision? Hello Doctor: I have floaters, and ever since I developed them, I often feel anxious whenever something seems off. Recently, I noticed some astigmatism (a diffuse glare similar to a photo effect), so I went for a fundus examination...
Dr. He Jianxian Reply:
If there are any significant changes, it is recommended that you return for a dilated eye examination, as this is the most appropriate course of action.[Read More] Understanding Eye Symptoms: What Does a Bright Line When Blinking Mean?
Understanding Astigmatism and Contact Lens Prescription Guidelines
Contact Lenses and Astigmatism 1. For a prescription of -5.75 diopters in the right eye and -5.50 diopters with +0.50 cylinder in the left eye, what should the contact lens prescription be? 2. Is it correct that the contact lens prescription is determined by reducing the myopia ...
Dr. Gao Pilin Reply:
Hello: When determining the prescription for contact lenses, the higher the degree of myopia, the more it can be reduced. Both of your eyes have a myopia of -5.75 (with the left eye's astigmatism measured as half of the value and converted), so you can reduce it by 50 degree...[Read More] Understanding Astigmatism and Contact Lens Prescription Guidelines