visual disturbance, Ophthalmology FAQ - Page 6

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Understanding Eye Issues: Retinal Detachment, Flashes, and More

Eye problems Hello, doctor. I have some questions I would like to ask: 1. When a retinal tear worsens into a detachment, does the vision loss happen instantly, or does it gradually darken from the edges? 2. If I just had an eye examination last month and am now experiencing new ...


Dr. Gao Pilin Reply:
Hello: 1. Sudden retinal detachment may lead to a sudden loss of vision, while chronic detachment may begin with gradual dimming from the periphery, resulting in progressively blurred vision. 2. Yes, if new flashes of light or other visual disturbances occur, it is advisable to s...

[Read More] Understanding Eye Issues: Retinal Detachment, Flashes, and More


Understanding Eye Issues: Common Questions About Floaters and Flashes

Eye problems Hello, I have high myopia and floaters. I have three questions to ask: 1. I sometimes see similar black spots drifting when I close my eyes. Is this normal? 2. The flashes occur more frequently when I intentionally focus my gaze. What is the reason for this? 3. A...


Dr. Gao Pilin Reply:
Hello: 1. Floaters are a phenomenon caused by the aggregation of transparent substances in the eye, typically appearing as black dots or thread-like shapes in the field of vision, especially noticeable against a white or bright background. It is also possible to see similar black...

[Read More] Understanding Eye Issues: Common Questions About Floaters and Flashes


Understanding Retinal Issues: What to Know About Floaters and Visual Disturbances

Retinal-related issues? Hello, Doctor Gao. I am a 31-year-old engineer with high myopia (both eyes over -10.00 diopters, and astigmatism over -4.00 diopters). Two days ago (March 10), I went to an ophthalmology clinic for a retinal examination. The doctor said there were currentl...


Dr. Gao Pilin Reply:
Hello: 1. Floaters are a common ophthalmic condition that causes you to see images resembling small flying insects in your field of vision. When a doctor mentions that "floaters have increased," it typically refers to these images becoming more prominent or appearing ...

[Read More] Understanding Retinal Issues: What to Know About Floaters and Visual Disturbances


Symptoms of Retinal Tears: When to Seek Eye Care for Flashing Lights

Retinal tear 1. What symptoms can occur with a retinal tear? 2. I currently experience flashes of light every time I move my eyes (does this indicate retinal detachment? My flashes do not resemble lightning but feel like a brief illumination). However, in dark areas, I only see ...


Dr. Gao Pilin Reply:
Hello: 1. Retinal tears may cause the following symptoms: - Sudden appearance of flashes, flickering, or other visual disturbances. - Presence of numerous small dark spots, similar to floaters. - Sudden loss of vision in a specific area, or overall vision becoming b...

[Read More] Symptoms of Retinal Tears: When to Seek Eye Care for Flashing Lights


Understanding Flashing Black Spots in Your Vision: Causes and When to See an Eye Doctor

Flashing black spots in the field of vision? Hello Doctor, I would like to inquire about a symptom I experience. When I forcefully close my eyes and then open them (such as when washing my hair or yawning), I see black spots flickering and floating in my visual field, as if there...


Dr. Gao Pilin Reply:
Hello: Based on your description, you may be experiencing symptoms of floaters, which are typically described as black dots, lines, or spirals that flicker or move within your field of vision. Floaters are usually caused by the gradual liquefaction of the transparent gel-like sub...

[Read More] Understanding Flashing Black Spots in Your Vision: Causes and When to See an Eye Doctor


Experiencing Visual Disturbances After COVID-19 Recovery: What to Know

Objects appear to be slightly shaking? Hello Doctor, I recently tested positive for COVID-19 and after recovering for a week, I started to experience slight lateral movement in my vision, making it difficult to focus, especially when looking at screens. My symptoms are not episod...


Dr. Gao Pilin Reply:
Hello: 1. There is a possibility, but further examination and evaluation are needed to confirm. If you have experienced head trauma, a stroke, or brain surgery, it could potentially lead to nerve damage or sequelae that may affect the visual system. However, it cannot be determin...

[Read More] Experiencing Visual Disturbances After COVID-19 Recovery: What to Know


Post-Retinal Laser Surgery Care: Common Concerns and Solutions

Post-retinal laser treatment issues and eye care? Hello Doctor, I underwent retinal laser surgery at the Taoyuan General Hospital at the end of January, with both eyes treated. My left eye had retinal thinning, and my right eye had a small tear. After the procedure, I lay in bed ...


Dr. Gao Pilin Reply:
Hello: 1. Generally, after undergoing laser treatment, there may be some ocular reactions such as crusting, redness, swelling, pain, and dryness. These reactions typically resolve within a few days to weeks. As for the occasional bright spots you see when you close your eyes, thi...

[Read More] Post-Retinal Laser Surgery Care: Common Concerns and Solutions


Understanding Blurry Vision: Causes and Solutions for Eye Discomfort

Blurred vision Hello Doctor, I have been experiencing discomfort in my eyes lately, especially in my right eye, which feels a bit dry and has a sensation of pressure around the eye socket. Blinking also causes some discomfort, but there are no noticeable blood vessels. Additional...


Dr. Gao Pilin Reply:
Hello: The symptoms you described may be caused by eye strain. Common causes of eye strain include prolonged screen time, reading, and activities like driving that require the eyes to maintain the same position for extended periods. I recommend the following measures: 1. Rest you...

[Read More] Understanding Blurry Vision: Causes and Solutions for Eye Discomfort


Understanding Post-Cataract Surgery Visual Disturbances and IOL Options

Inquiries After Intraocular Lens Surgery Hello, doctor. It has been a month since I had my intraocular lens (IOL) replaced, and at night under lights, I often see a crescent-shaped light shadow that resembles the edge of a lens. I would like to ask if there are different sizes of...


Dr. Cai Wenyuan Reply:
The sizes of intraocular lenses are quite similar; it is recommended to seek medical examination.

[Read More] Understanding Post-Cataract Surgery Visual Disturbances and IOL Options


Understanding Floaters: Are Those Black Spots in Your Vision Normal?

Floaters and related issues? I would like to ask the doctor, I have floaters in my vision. When I look at the sky and blink, I see a momentary black dot appear. Is this a symptom of floaters?


Dr. Gao Pilin Reply:
Hello: Yes, that is likely to be floaters. Floaters are a common visual disturbance, typically appearing as dark spots when looking at the sky or other bright backgrounds. It is recommended that you see an ophthalmologist for an examination to confirm the diagnosis.

[Read More] Understanding Floaters: Are Those Black Spots in Your Vision Normal?


Understanding Visual Disturbances After Experiencing Floaters

Abnormal visual sensations when looking at objects? Hello, Doctor. Since I developed floaters, I have been experiencing a flickering sensation when looking at black and white patterns or stripes. A few days ago, while walking on the sidewalk and looking at the tiles, I felt like ...


Dr. Cai Wenyuan Reply:
Floaters are generally not a cause for concern; regular check-ups are sufficient.

[Read More] Understanding Visual Disturbances After Experiencing Floaters


Understanding Visual Disturbances After Experiencing Floaters

Abnormal visual perception? Hello Doctor, I have been experiencing floaters since I developed my condition, and recently, when looking at black and white patterns or stripes, I feel like there are flashing lines. A few days ago, while walking on the sidewalk and looking at the ti...


Dr. Cai Wenyuan Reply:
Observe the symptoms, and if they persist, seek medical evaluation.

[Read More] Understanding Visual Disturbances After Experiencing Floaters


Understanding Visual Disturbances Upon Waking: Causes and Solutions

Waking up suddenly and experiencing a sensation of seeing things with a wavy or distorted appearance? Hello, Doctor Gao. I have issues with floaters, dry eyes, and eye allergies, with my prescription being approximately -6.00 in the left eye and -8.00 in the right eye. My current...


Dr. Gao Pilin Reply:
Hello: This is a phenomenon of vitreous liquefaction, which is just a temporary process and is not a concern. It is common to experience blurred vision and tightness in the muscles around the eyes upon waking up, which may be due to insufficient sleep or poor sleep quality. Lack ...

[Read More] Understanding Visual Disturbances Upon Waking: Causes and Solutions


Understanding Post-Cataract Surgery Visual Disturbances and Lens Options

Inquiries After Intraocular Lens Surgery Hello, doctor. It has been a month since I had my artificial lens replaced, and at night under lights, I often see a curved light shadow resembling the edge of a lens. I would like to ask if artificial lenses come in different sizes. Is it...


Dr. Cai Wenyuan Reply:
The sizes are quite similar.

[Read More] Understanding Post-Cataract Surgery Visual Disturbances and Lens Options


Understanding Eye Symptoms: Insights on Retinal Issues and Visual Disturbances

Eye problems Hello, doctor. I have some questions I would like to ask. Two months ago, I experienced flashes of light and afterimages with black spots, so I underwent a fundus examination and fundus photography. The doctor said everything was normal. I intended to discuss my symp...


Dr. Gao Pilin Reply:
Hello: 1. It depends on the size and location of the tear. 2. Yes. 3. It is usually caused by the vitreous body. 4. It could be a posterior image. 5. It may be floaters. 6. It could also be a posterior image. 7. It should be possible; you should alternate covering each eye to obs...

[Read More] Understanding Eye Symptoms: Insights on Retinal Issues and Visual Disturbances


Seeing Shadows After Waking: Understanding Visual Disturbances

Seeing moving objects with shadows right after waking up? In the past two days, I suddenly noticed that when I just wake up, I see moving objects, such as when I wave my hand in front of me, there appears to be a trailing line or afterimage at the edge of my hand. However, this d...


Dr. Gao Pilin Reply:
Hello: It is possible that the background light source is discontinuous light (rapidly flickering light), such as fluorescent lights or LED lights. Because this light flickers quickly, it can cause moving objects to produce afterimages. This phenomenon does not occur under incand...

[Read More] Seeing Shadows After Waking: Understanding Visual Disturbances


Understanding Visual Disturbances: When to Seek Eye Care

In a dark room without lights, I saw purple lightning? Hello, doctor. I do not have myopia, but when I look at the sky, I see a small invisible line and a tiny dot, which I am unsure if it has increased recently. I use my phone for over 14 hours a day, sometimes even in the dark....


Dr. Gao Pilin Reply:
Hello Shan: This is more likely related to vitreous degeneration, commonly known as floaters. As for the purple flashes, they resemble photopsia, which is a physiological phenomenon. I recommend that you have an eye examination. If everything is fine, you can rest assured.

[Read More] Understanding Visual Disturbances: When to Seek Eye Care


Understanding Shadowy Visual Disturbances: Causes and Treatments

Visual floaters? Hello, doctor. In the past, when I slowly moved my eyes to the far left, far right, and far up, I would notice a progressively larger, blurred circular shadow in my field of vision that seemed like a thin veil (it was just a thin layer, and I could still see, but...


Dr. He Jianxian Reply:
It still sounds like the symptoms of floaters. It is recommended to consult an ophthalmologist for a dilated fundus examination. If the fundus is normal, there should be no need for excessive concern. Director He Jian-xian, Department of Ophthalmology, Nantou Hospital.

[Read More] Understanding Shadowy Visual Disturbances: Causes and Treatments


Seeing Rain When There’s None: Understanding Visual Disturbances

It feels like it's drizzling when I look out with my eyes? Hello, sometimes when I look outside to open spaces, I feel as if it is drizzling, even when I am looking through glass, but in reality, it is not raining. However, visually, it seems like there is a fine mist or lig...


Dr. Cai Wenyuan Reply:
It is recommended to seek medical examination.

[Read More] Seeing Rain When There’s None: Understanding Visual Disturbances


Understanding Visual Disturbances in Children: When Objects Appear to Change Size

Objects appear to fluctuate in size? Hello, doctor! I have an 11-year-old boy who does not have myopia. Recently, he mentioned that sometimes things appear to change in size, for example, the clock looks bigger or smaller, and even people appear to change size. This happens in th...


Dr. Gao Pilin Reply:
Hello: This should not be related to smoking. It could be an issue with the child's ciliary muscle accommodation. It is advisable to visit an ophthalmologist to check for any signs of pseudomyopia.

[Read More] Understanding Visual Disturbances in Children: When Objects Appear to Change Size


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