Vision, Ophthalmology FAQ - Page 36

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Understanding Monocular Diplopia: Causes and Solutions for Eye Strain

Monocular diplopia Hello doctor, recently when I look at the computer, my left eye sees a faint layer floating above brighter objects, whether they are white text or black backgrounds. This is not as noticeable when looking at other items. I visited an ophthalmologist who said it...


Dr. Gao Pilin Reply:
Hello: Based on the symptoms you described, it is likely that your eyes are experiencing fatigue and strain from prolonged use. When you focus on a screen or other objects for an extended period, the muscles in your eyes can become tense, leading to fatigue and blurred vision. Mo...

[Read More] Understanding Monocular Diplopia: Causes and Solutions for Eye Strain


Understanding Light and Dark Adaptation: When to Worry About Visual Disturbances

Hello, doctor. I would like to inquire about light adaptation and dark adaptation? Hello, doctor. I would like to ask about dark adaptation or light adaptation. I experience flashes of light in my vision, even when my eyes are closed. When I try to focus on objects, everything ar...


Dr. Gao Pilin Reply:
Hello: Based on your description, it is possible that the temporary visual disturbances you are experiencing are due to a disorder of dark adaptation or light adaptation. When you transition from a bright environment to a darker one, or vice versa, your eyes require time to adjus...

[Read More] Understanding Light and Dark Adaptation: When to Worry About Visual Disturbances


Understanding Flashing Lights in Your Vision: Causes and Concerns

Hello, doctor. I would like to ask about the issue of flashes? Hello, doctor. Previously, when I moved from a sunny or bright place to indoors, I would suddenly see one or two flashes of light in my left or right eye. They would keep flashing, and I had difficulty focusing on obj...


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

[Read More] Understanding Flashing Lights in Your Vision: Causes and Concerns


Understanding Zigzag Flashes: Eye Strain, Migraines, and Eye Pressure

Hello, doctor. I would like to ask..? Hello, doctor. Sometimes I experience zigzag flashes in my vision that last for about 10 minutes. I previously had an eye examination, and the doctor told me there were no issues with my eyes. I would like to know if these zigzag flashes rela...


Dr. Cai Wenyuan Reply:
It may not necessarily be related.

[Read More] Understanding Zigzag Flashes: Eye Strain, Migraines, and Eye Pressure


Understanding Zigzag Flashing Lights: Eye Health Insights

Zigzag flashes Hello doctor, I would like to ask, there have been several instances when I walk from sunlight into a room and then look at my phone, I experience a darkening effect, followed by flickering in my vision, and I am unable to focus. The more I try to see details, the ...


Dr. Gao Pilin Reply:
Hello: Based on your description, this situation may be caused by an adaptation issue with your eyes. When you are exposed to bright sunlight outdoors for a period of time, your pupils naturally constrict to regulate the amount of light entering the eyes, protecting the retina fr...

[Read More] Understanding Zigzag Flashing Lights: Eye Health Insights


Understanding Floaters in Children: Causes, Concerns, and Next Steps

Vitreous floaters in children? Hello, Doctor: (I apologize for asking again) My child is around four years old. Last week, we took him for his first vision check-up, and everything regarding his vision was fine. During the process, no dilation was performed, and the doctor used a...


Dr. Gao Pilin Reply:
Hello: 1. Based on the child's description, it may be a symptom of floaters, but other conditions cannot be ruled out. It is advisable to consult an ophthalmologist for further evaluation. 2. To rule out retinoblastoma, dilation may be necessary. However, the likelihood of t...

[Read More] Understanding Floaters in Children: Causes, Concerns, and Next Steps


Understanding Floaters in Young Children: Concerns and Insights

Vitreous Floaters in Infants Hello Doctor: My younger son is about four years old. Last week, I took him for his first vision check-up, and everything regarding his vision was fine. The examination was done without dilation, and the doctor used a slit lamp and an indirect ophthal...


Dr. Gao Pilin Reply:
Hello: 1. Floaters are usually caused by opacities in the vitreous body, and even individuals with normal vision can experience floaters. Therefore, it is possible for children with normal vision to also have floaters. 2. Generally, a four-year-old child can undergo slit-lamp exa...

[Read More] Understanding Floaters in Young Children: Concerns and Insights


Understanding the Differences Between Fixation and Binocular Vision in Strabismus

The issue of military service for alternating exotropia - 2 Hello, Dr. Gao: I am a student inquiring about the response to Q&A 2 in article #195872. I have some parts that I do not understand and would like to ask about the difference between "fixation" and "ga...


Dr. Gao Pilin Reply:
Hello: Fixation means to gaze steadily, looking straight ahead; both terms have the same meaning. During testing, it involves looking forward and maintaining fixation, which is also referred to as steady gaze.

[Read More] Understanding the Differences Between Fixation and Binocular Vision in Strabismus


Understanding Flashing Lights in Vision: When to Seek Medical Attention

The appearance of lightning-like flashes in the eyes? Hello Doctor, this morning when I drove out of the parking lot (from dark to bright), I suddenly noticed a small lightning-like image in my left eye. I could still see it with my eyes closed in the dark, and then I put on sung...


Dr. Gao Pilin Reply:
Hello: Based on your description, you may be experiencing visual persistence caused by intense light stimulation. This phenomenon typically occurs after a sudden transition from a dark environment to a bright one or exposure to strong light sources such as flash photography, resu...

[Read More] Understanding Flashing Lights in Vision: When to Seek Medical Attention


Understanding High Myopia: Risks of Low Vision and Cataracts

High myopia issues? 1. With my myopia of -5.75 and -6.50, is it likely that I will become part of the low vision population? 2. Does having this level of myopia significantly increase the likelihood of developing cataracts at the age of 50 or 60?


Dr. Gao Pilin Reply:
Hello: 1. The likelihood of developing low vision is very low if no pathological changes occur. 2. There is a certain correlation between the degree of myopia and the occurrence of cataracts. Individuals with high myopia tend to have longer axial lengths of the eye, which makes t...

[Read More] Understanding High Myopia: Risks of Low Vision and Cataracts


Post-Cataract Surgery: Understanding Image Size Differences in Eyes

Differences in Image Size After Cataract Surgery Hello, Director: Regarding the previous question (<a href="https://adoctor.tw/article/194330">#194330</a>), when viewing objects with the naked eye, the image from the left eye (which has macular folds) appear...


Dr. He Jianxian Reply:
Hello Mr. Lee: Because you already have an issue with varying image sizes in your naked vision, theoretically, using different intraocular lenses should not cause this condition. If there is too much disparity between the images in both eyes, it can inherently lead to discomfort....

[Read More] Post-Cataract Surgery: Understanding Image Size Differences in Eyes


Understanding Persistent Eye Flashes: Causes and Concerns

Bright spots in the eyes for 24 hours? I have been experiencing visual disturbances, such as bright spots, in my eyes for 24 hours. These occur whether my eyes are open or closed. When I move my eyes to the far left or right, I see lightning-like flashes. While lying down, I occa...


Dr. He Jianxian Reply:
Hello, Arden: I apologize, but we have not encountered a case similar to yours in clinical practice, so I am unable to provide a proper response. Dr. He Jianxian, Department of Ophthalmology, Nantou Hospital.

[Read More] Understanding Persistent Eye Flashes: Causes and Concerns


Is Rubbing Your Eyes After Scratching Your Feet Dangerous?

Picking your feet and then rubbing your eyes? 1. Yes, it is true that touching your eyes after scratching your feet without washing your hands can potentially lead to fungal keratitis. This condition can indeed severely affect vision and may lead to blindness if not treated prope...


Dr. Gao Pilin Reply:
Hello: 1. Yes, fungal keratitis is an eye infection that can potentially affect vision and lead to blindness. If you experience eye discomfort or blurred vision, it is advisable to seek an ophthalmological examination as soon as possible. 2. Symptoms of fungal keratitis include e...

[Read More] Is Rubbing Your Eyes After Scratching Your Feet Dangerous?


Impact of Direct Flash Exposure on Eye Health: Risks and Concerns

The eyes were directly exposed to a flash of light? On April 25th at 5 PM, I used my phone's selfie function to take a close-up photo of my left eye (within 10 to 15 centimeters) and forgot to turn off the flash. The flash directly illuminated my eye, causing my vision to go...


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

[Read More] Impact of Direct Flash Exposure on Eye Health: Risks and Concerns


Understanding Retinal Thinning in High Myopia: Causes and Implications

Thinner retina? High myopia only causes retinal tears in a small percentage of individuals, which suggests that high myopia may lead to thinning of the peripheral retina, making it less likely to develop tears.


Dr. Gao Pilin Reply:
Hello: The incidence of retinal tears is indeed higher in individuals with high myopia, but not all individuals with high myopia will experience retinal tears. Retinal tears occur due to the elongation of the eyeball, which causes areas of the retina that are weak to be more susc...

[Read More] Understanding Retinal Thinning in High Myopia: Causes and Implications


Understanding Retinal Issues: What to Know About Floaters and Flashing Lights

Retinal issues Hello Doctor: I have floaters in my vision, and recently I've been doing jump rope exercises. Today, after finishing my workout, I noticed a bright flash in my left eye, similar to a camera flash. It was brief and not very large, but it disappeared after a mom...


Dr. Gao Pilin Reply:
Hello: Floaters are a relatively common eye issue, typically caused by degeneration or damage to the vitreous body within the eye. Jump rope exercises may exert some pressure on the eyes, but generally, they do not have a direct impact on floaters. Based on your description, the ...

[Read More] Understanding Retinal Issues: What to Know About Floaters and Flashing Lights


Persistent Eye Pain After Injury: What You Need to Know

Even if there are no visible wounds, it can still hurt after poking the eye? Last September, I was poked in the eye by a plastic stick from double eyelid tape. It healed, but my eye still hurts. I've seen several doctors who said there are no visible injuries, and I've ...


Dr. Gao Pilin Reply:
Hello: Since you have seen multiple physicians and have been confirmed to have no wounds, but your eyes still hurt, further detailed examination and diagnosis may be necessary. Here are some steps you might consider: 1. Seek a second opinion from another ophthalmologist: They m...

[Read More] Persistent Eye Pain After Injury: What You Need to Know


Does Dominant Eye Affect Pupil Size? Understanding Vision and Eye Health

Does habitual eye use affect pupil size? Hello, doctor. Recently, I have experienced side effects from the eye drops prescribed by my ophthalmologist, including miosis (constricted pupils). The doctor advised me to follow up with a neurologist, and while there are no issues with ...


Dr. Gao Pilin Reply:
Hello: It is normal for there to be slight differences in pupil size; however, if you notice a significant difference, it is advisable to consult an ophthalmologist for a thorough examination of your eyes to rule out any underlying issues. Regarding the issue of your right eye ha...

[Read More] Does Dominant Eye Affect Pupil Size? Understanding Vision and Eye Health


Understanding Eyelid Warts and Chronic Conjunctivitis: Symptoms and Solutions

Discomfort issues after upper eyelid warts and conjunctivitis? Hello Doctor, my left eye has a vision of about 1.5 and I have dry eye syndrome. I have been using a tear film ointment and single-dose artificial tears before bed for a long time. Last week, I felt some pain on my le...


Dr. Gao Pilin Reply:
Hello: 1. The cause of left temporal pain may be due to elevated intraocular pressure, but it could also be attributed to other factors such as cervical spine issues or neurological and autonomic nervous system problems. Further evaluation and diagnosis are necessary. 2. If conju...

[Read More] Understanding Eyelid Warts and Chronic Conjunctivitis: Symptoms and Solutions


Understanding High Myopia: Risks and Long-Term Eye Health Concerns

High myopia health Hello doctor, I am nearsighted with a prescription of -5.75 in my left eye and -6.50 in my right eye. I am 20 years old. 1. Based on your experience, will my degree of myopia deteriorate significantly or lead to many complications by the time I reach 40 or 50 y...


Dr. Gao Pilin Reply:
Hello: 1. The degree of vision deterioration varies from person to person; not everyone will experience significant decline at the ages of 40 or 50. Generally, myopia tends to gradually increase during adolescence and stabilizes in adulthood. However, as one ages, the natural agi...

[Read More] Understanding High Myopia: Risks and Long-Term Eye Health Concerns


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