Eye examination, Ophthalmology FAQ - Page 17

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Understanding Vitreous Degeneration: When to Seek Further Eye Examination

Vitreous degeneration Hello Doctor, I have approximately 800 degrees of myopia in both eyes. A month ago, I visited an ophthalmology clinic for a check-up regarding floaters, and the examination showed no issues. Later, I went to a large hospital for a comprehensive glaucoma eval...


Dr. Gao Pilin Reply:
Hello: If you experience new flashes, it's important to pay attention and it's best to get checked. If the examination shows no issues, you can monitor it yourself. The flashes you see before sleep are likely visual phosphenes, not flashes caused by vitreous traction. F...

[Read More] Understanding Vitreous Degeneration: When to Seek Further Eye Examination


Understanding the Relationship Between High Myopia and Cup-to-Disc Ratio

High myopia cup-to-disc ratio question? Hello, doctor. I have high myopia (R1200, L900) and floaters. Currently, my prescription changes by about 50 degrees after dilation (the doctor said this is normal), and my intraocular pressure measurements have always been normal. During a...


Dr. Gao Pilin Reply:
Hello JJ: 1. The cup-to-disc ratio is an indicator used to assess the optic nerve, and a slightly elevated cup-to-disc ratio caused by high myopia does not necessarily indicate glaucoma. 2. Diagnosis codes are sometimes required for examinations, but the presence of a diagnosis m...

[Read More] Understanding the Relationship Between High Myopia and Cup-to-Disc Ratio


Understanding High Astigmatism in Young Children: What Parents Should Know

Astigmatism in children? Hello Doctor: Recently, my child (2 years and 11 months old) had their first eye examination at an ophthalmologist. The computerized refraction showed high astigmatism of 400 degrees in both eyes and mild hyperopia of 200 degrees. The visual acuity test (...


Dr. Cai Wenyuan Reply:
If you're concerned, you can go to a medical center for further examination.

[Read More] Understanding High Astigmatism in Young Children: What Parents Should Know


Flashing Lights in Darkness: What Your Eyes Are Trying to Tell You

Seeing flashes of light in the dark? Hello doctor, I noticed that when I turn off the lights to go to sleep and glance slightly to the side, then turn my head to the other side, I see a circular light that resembles a flash from a camera. It doesn't appear continuously, but ...


Dr. Gao Pilin Reply:
Hello: This situation is caused by the vitreous pulling on the retina. It is recommended that you have an eye examination.

[Read More] Flashing Lights in Darkness: What Your Eyes Are Trying to Tell You


Can I Wear Contact Lenses with Different Prescription Strengths?

What about contact lenses? Hello, doctor. I would like to ask if it's acceptable to have a prescription for glasses with -500 degrees for the right eye and -625 degrees for the left eye, while wearing contact lenses with -450 degrees for the right eye and -575 degrees for th...


Dr. Gao Pilin Reply:
Hello: This is acceptable, as according to your eye examination, the contact lens prescription should be +500 for the right eye and +600 for the left eye, with a difference of 25-50 degrees. If your vision is not affected, it is not a concern.

[Read More] Can I Wear Contact Lenses with Different Prescription Strengths?


Can a Single Eye Exam at a Hospital Accurately Diagnose Glaucoma?

Glaucoma Report I recently made an appointment at a major hospital for an eye examination, but since I have not had any previous eye tests there, they do not have my complete medical history. Can they determine if I have glaucoma in just one visit? I have been seeing a clinic for...


Dr. Liang Ce Reply:
It is recommended that you undergo a comprehensive examination at a major hospital and consult regarding any related questions. Wishing you good health!

[Read More] Can a Single Eye Exam at a Hospital Accurately Diagnose Glaucoma?


Understanding Nighttime Visual Obstructions: Eye Symptoms Explained

When sleeping, I feel that part of my vision near the corner of one eye is obstructed by a shadow and is not visible? Hello Doctor, I have floaters and high myopia. Recently, when I lie in bed at night (with the lights off), I feel like one eye has a part of my visual field block...


Dr. He Jianxian Reply:
The symptoms you are currently experiencing cannot be clinically explained. I recommend that you undergo a formal dilated eye examination at an ophthalmology department. If no abnormalities are found, there is no need to worry too much. Director He Jian-xian, Nantou Hospital Opht...

[Read More] Understanding Nighttime Visual Obstructions: Eye Symptoms Explained


Understanding Eye Flashes: Causes and Concerns for Retinal Health

Flashes of light in the eyes? I have floaters and retinal degeneration. A few days ago, while trying to swat a mosquito, I noticed flashes in the corner of my eye when moving my eyeball. However, during the day and at night, when my eyes are closed or when I look at things, there...


Dr. He Jianxian Reply:
This phenomenon, commonly referred to as "photopsia," represents the tension created between the vitreous body and the retina during rapid eye movements. If these flashes occur too frequently, it is essential to undergo a dilated eye examination to prevent any potential...

[Read More] Understanding Eye Flashes: Causes and Concerns for Retinal Health


Can Visual Field Loss Occur with Photopsia? Understanding Eye Health

Is it possible for vision loss to occur in the visual field area affected by photophobia? Hello Doctor: Recently, I have noticed a small area in my monocular visual field where I see light spots similar to photopsia when I close my eyes. Given that I am at an age where ocular fun...


Dr. He Jianxian Reply:
To confirm your issue, you only need to schedule a standard visual field test. It is recommended that you arrange this at a hospital. Dr. He Jianxian, Ophthalmology Department, Nantou Hospital.

[Read More] Can Visual Field Loss Occur with Photopsia? Understanding Eye Health


Understanding Eye Flashes: Causes and Concerns for Your Vision

There is a sensation of flashes in the eyes? Hello Doctor, I have myopia with -5.00 in my left eye and -4.00 in my right eye, along with astigmatism of -3.00 in my left eye and -4.00 in my right eye. I would like to ask about sudden flashes of light that occur when I open my eyes...


Dr. Gao Pilin Reply:
Hello, Bai Bai: Flashes may be caused by the vitreous pulling on the retina. However, this pulling usually does not result in retinal tears, and if the examination shows no issues, you can simply monitor the situation. The shadows caused by floaters and those from vitreous degene...

[Read More] Understanding Eye Flashes: Causes and Concerns for Your Vision


Understanding Blurry Vision After Napping: Causes and Solutions

Visual haze or fog in front of the eyes? Hello, I often take naps on my desk during lunch breaks, and sometimes I might press on my eyeballs, although I'm not sure if I actually do. After waking up and putting on my glasses, my entire field of vision appears foggy and somewh...


Dr. Gao Pilin Reply:
Hello, Apple: Waking up with blurry vision after sleeping on your stomach is a common experience for many, especially during school days after a nap. This occurs because the pressure on the cornea while sleeping can lead to astigmatism, which resolves as the cornea gradually reco...

[Read More] Understanding Blurry Vision After Napping: Causes and Solutions


Is Eye Pain a Sign of an Eye Disease? Understanding Your Symptoms

Is it considered an eye disease? Hello Doctor: Last time I asked you about the pain in the upper inner corner of my right eye, and you mentioned it might be related to the trigeminal nerve. Besides the neurological issues, I would like to ask if I should go to a larger hospital f...


Dr. Gao Pilin Reply:
Hello, Miss Hsieh: You may want to first visit a neurologist, as this may not be an eye-related issue. If you are still concerned, you can certainly make an appointment with the ophthalmology department at a major hospital to rule out any problems around the eyes.

[Read More] Is Eye Pain a Sign of an Eye Disease? Understanding Your Symptoms


Understanding Blurry Vision: Causes and Concerns for Eye Health

Blurred vision Hello, I have myopia of -3.50 diopters and astigmatism ranging from -2.75 to over -3.00 diopters (I’m not sure why the astigmatism measurements sometimes vary; isn’t the degree of astigmatism supposed to remain relatively stable?). I have had floaters since childho...


Dr. Gao Pilin Reply:
Hello, Apple: This could be a phenomenon caused by vitreous degeneration. When the posterior vitreous detaches, fluid can enter the cavity, leading to temporary blurriness. It should return to normal afterward.

[Read More] Understanding Blurry Vision: Causes and Concerns for Eye Health


Understanding Pediatric Vision Tests: A Guide for Parents

Children's vision screening issues? Hello Doctor, I would like to ask about my daughter who is in the third grade. The other day, she had an eye examination at Clinic A after school (without dilation) and the results showed that her right eye had myopia of -0.50 diopters and...


Dr. Gao Pilin Reply:
Hello Amy: 1. If you want to start treatment, just use the right eye. 2. If you do not wish to start treatment, you will need to have close follow-up examinations (measuring the prescription once a month). If there is an increasing trend, you should begin treatment; if it remains...

[Read More] Understanding Pediatric Vision Tests: A Guide for Parents


Understanding Black Flashes in Vision: Are They Related to Floaters?

The appearance of black flashes in the eyes? Hello Doctor, thank you for your previous response. However, the black flashes I see when lying down do not move like floaters; they just flash and disappear. Does this also count as a type of floaters, or could it be another symptom? ...


Dr. Gao Pilin Reply:
Hello: Generally speaking, if normal function is restored, there is usually no cause for concern; it is likely just a physiological phenomenon. It may also be a result of retinal discharge. If it does not occur again, you can monitor the situation. However, if it happens frequent...

[Read More] Understanding Black Flashes in Vision: Are They Related to Floaters?


Experiencing Bright Spots in Dark Rooms: Eye Health Concerns Explained

A light (or light spot?!) appears at the outer corner of the right eye in the dark? Hello, recently after entering a dark room and sitting in the same position, I have noticed a bright yellow light appearing at the tail of my right eye. It seems like a light spot, not a flash, an...


Dr. He Jianxian Reply:
Your condition can be monitored further. If you have any concerns, you can still visit an ophthalmologist for a dilated eye exam. As for the effectiveness of taking Qi Ju Di Huang Wan, I am unable to answer that due to my lack of knowledge in traditional Chinese medicine. Directo...

[Read More] Experiencing Bright Spots in Dark Rooms: Eye Health Concerns Explained


Understanding Sudden Eye Flashes: Causes and Concerns for Myopia Patients

Eye problems I have high myopia and floaters. Recently, my eye suddenly flashed, like a light flickering for less than a second. I had a fundus examination three months ago, and there were no issues with my retina. What could be the condition of my eye?


Dr. Gao Pilin Reply:
Hello Ms. Yang: It is likely a phenomenon caused by the vitreous pulling on the retina. Generally speaking, it is not serious, but for safety reasons, it is still recommended that you have an eye examination for peace of mind.

[Read More] Understanding Sudden Eye Flashes: Causes and Concerns for Myopia Patients


Understanding Retinal Checkups: Concerns and Safety for Eye Health

Retinal examination issues? Hello Doctor: Due to a retinal hole many years ago, I underwent retinal laser surgery. I have been regularly returning for dilated eye examinations. Between January and February 21 of this year, I had multiple visits (5 times) due to black shadows in m...


Dr. Gao Pilin Reply:
Hello, Xiaomi: 1. No, schoolchildren use dilating drops daily for myopia prevention. 2. The pupil may not constrict back, which can happen. 3. It depends on the strength, direction, and duration of the effect. It cannot be generalized. Therefore, if there is an injury, it should ...

[Read More] Understanding Retinal Checkups: Concerns and Safety for Eye Health


Understanding Retinal Issues: Symptoms, Risks, and Self-Assessment

Retinal issues Hello Doctor, I have myopia and astigmatism in my left eye measured at -5.00 and -3.00, and in my right eye at -4.00 and -4.00. I would like to ask if my recent experience of seeing floaters and slight flashes of light could be a precursor to a retinal tear. I rece...


Dr. Gao Pilin Reply:
Hello, Bai Bai: The presence of floaters in your vision is not a psychological effect if they are clearly noticeable. The likelihood of a retinal tear is low. If the tear is large, it can lead to retinal detachment, but smaller tears are less likely to cause this issue. Floaters ...

[Read More] Understanding Retinal Issues: Symptoms, Risks, and Self-Assessment


Understanding Eye Symptoms: When to Seek Help for Floaters and Flashes

Eye problem consultation? Hello, I would like to ask the doctor two questions. About two years ago in October, I had an eye examination and was told that I had a mild case of floaters. I underwent dilation, and the doctor mentioned that there was no significant issue, and as long...


Dr. Gao Pilin Reply:
Hello Lin: Your condition may be a manifestation of vitreous degeneration, and it is advisable to have an examination by an ophthalmologist.

[Read More] Understanding Eye Symptoms: When to Seek Help for Floaters and Flashes


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