3C, Ophthalmology FAQ

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Understanding High Eye Pressure and Acute Glaucoma Symptoms: Key Insights

Elevated intraocular pressure / Acute glaucoma Hello Doctor, I have high myopia with -6.25 in my left eye and -6.75 in my right eye. I have a history of elevated intraocular pressure, fluctuating between 21-26 mmHg, and last week it was 24-25 mmHg. However, I have previously expe...


Dr. Gao Pilin Reply:
Hello, Miss Lin: 1. Please refer to: https://bit.ly/3CqNwLO 2. Acute glaucoma is characterized by a rapid increase in intraocular pressure within a short period. 3. Acute glaucoma is an ophthalmic emergency where the intraocular pressure rises quickly, causing significant damage...

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Understanding Eye Health: Blue Ring Around the Iris and Care Tips

The color of the sclera and some eye care issues? Hello, doctor. I have a question I'd like to ask you. Recently, I've noticed a thin, faint blue (indigo?) ring at the junction of my cornea and sclera. Is this normal? I can only see it clearly under a desk lamp; I hadn&...


Dr. Gao Pilin Reply:
Hello, Zhili: The area where the cornea meets the sclera has a thin, faint blue ring, which is a type of lipid, usually cholesterol. If observed in individuals under 40, it is often associated with hyperlipidemia, particularly familial hypercholesterolemia. However, this is a nat...

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Understanding Retinal Laser Treatment: Key Questions and Insights

Retinal laser treatment Dear Dr. Gao, I recently discovered a retinal tear due to high myopia and underwent laser treatment. I am determined to protect my eyes to avoid the path to blindness in the coming years or even decades. This has led to many questions and decisions regard...


Dr. Gao Pilin Reply:
Hello Andre: 1. There should only be one type. 2. Scarring will persist and typically will not be repeated on the same area. 3. 4. 5. Injecting around the entire circumference is ineffective and does not provide protection to the center; it should be done around the perimeter of ...

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Understanding Eye Care: Addressing Retinal Detachment and Flashing Lights

Maintenance issues? 1. I underwent gas treatment to reattach the detachment above my eye, but fluid has accumulated below. The doctor recommended laser surgery to seal it. After a week post-procedure, during my follow-up, the doctor mentioned that some areas were not adequately s...


Dr. He Jianxian Reply:
1. Watching 3C devices does not cause thinning of the retina. 2 & 3. The flashes you described are likely not caused by the retina, as true retinal flashes would feel like being flashed by a camera's flash and would typically disappear quickly. Dr. He Jianxian, Ophthalmo...

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Understanding Astigmatism: Key Questions and Insights for Patients

High astigmatism 1. After performing a corneal topography and confirming there are no issues, can we be 100% certain that there is no keratoconus, or are additional tests required? 2. If keratoconus develops later in life, will the progression be less severe? 3. Is it common ...


Dr. Gao Pilin Reply:
Hello, Wu Yan: 1. At least for now, there are no issues, but further examinations will be needed in the future. 2. It should be about the same. 3. If there are no diseases, it should not increase significantly. 4. Corneal disorders can cause astigmatism. 5. Glasses can be prescri...

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Understanding Macular Degeneration: Causes, Risks, and Treatment Options

Macular degeneration Hello, Doctor. I have a few questions to ask: 1. What are the main causes of macular degeneration? I am an engineer, so I may spend around 12 to 13 hours a day using electronic devices. Does this increase the risk of developing macular degeneration? I am nea...


Dr. Gao Pilin Reply:
Hello Mr. Huang: 1. Regarding macular degeneration, please refer to: https://bit.ly/3wPVAzR. High myopia may increase the risk of early macular degeneration. The use of digital devices (3C) is primarily an indirect factor, such as worsening myopia. There is no conclusive evidenc...

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Does Prolonged 3C Device Use Increase Eye Pressure and Risk of Glaucoma?

3C and the Eyes Hello Doctor: 1. I would like to ask if prolonged use of electronic devices can lead to elevated intraocular pressure and result in glaucoma? 2. Can using a mobile phone in low light conditions cause glaucoma?


Dr. Gao Pilin Reply:
Hello, those who are confused: Prolonged use of electronic devices does not directly cause glaucoma, but it can lead to eye fatigue. However, using your eyes in dim lighting can cause prolonged dilation of the pupils, which may obstruct the circulation of intraocular fluid and po...

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Does High Myopia Increase the Risk of Retinal Detachment?

Does myopia directly lead to retinal detachment? Hello, doctor. I have 900 degrees of high myopia and also experience floaters. I regularly take lutein for maintenance. I would like to ask if prolonged close-up viewing of digital devices can directly cause retinal detachment, or ...


Dr. Gao Pilin Reply:
Hello, Ah Qian: Patients with high myopia experience rapid enlargement of the eyeball, which causes thinning of the peripheral retina and may lead to retinal tears, potentially resulting in retinal detachment that poses a serious threat to vision. Viewing screens (3C devices) doe...

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Understanding Retinal Tears: Causes, Risks, and Post-Surgery Concerns

Retinal tear Hello Doctor, I have retinal holes in both eyes and have undergone laser treatment for them. However, after the treatment on my right eye (where the original hole seemed a bit large), I developed a small hole next to it within a month during my follow-up visit, so it...


Dr. Gao Pilin Reply:
Hello: The cause of lattice degeneration of the retina is unknown, and it commonly occurs in myopic individuals, not necessarily only in those with high myopia. The use of digital devices (3C) does not cause retinal detachment unless there are existing holes or lesions in the ret...

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Understanding Elevated Eye Pressure: Questions and Insights for Patients

Consultation for intraocular pressure issues? Dear Dr. Gao, Hello, I am Ah Xiang, who previously asked you some questions. I sincerely appreciate your responses to my inquiries. Following your advice, I visited an ophthalmology clinic yesterday for a dilated fundus examination. ...


Dr. Gao Pilin Reply:
Hello, Ah-Xiang: 1. What part of the eye is primarily examined to determine if a person can use mydriatic agents? The size of the anterior chamber angle is assessed; if the angle is open, the use of mydriatic agents is less likely to cause an increase in intraocular pressure. 2...

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Essential Eye Care Questions: Understanding Symptoms and Treatments

Eye health issues Hello, Doctor. I have several questions that have been bothering me: 1. After undergoing dilation and having my eyes examined, I feel a slight swelling and a foreign body sensation (somewhat fatigued) in my eyes for two to three days. Is this a normal phenomeno...


Dr. Gao Pilin Reply:
Hello, Xin You: 1. After undergoing dilation and an eye examination, is it normal to feel slight swelling and a foreign body sensation in the eyes for a couple of days? This is not typical. If it persists, you should measure your intraocular pressure and check for other issues. ...

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Excessive Eye Discharge: Causes, Symptoms, and Treatment Options

Excessive eye discharge? Hello Doctor: For the past month or two, I have been experiencing excessive discharge from my left eye, which seems to increase as it gets closer to evening. The discharge is mostly milky white in color and appears to be concentrated at the lower eyelid, ...


Dr. Gao Pilin Reply:
Hello: Based on your description, the mass inside the eyelid may be a chalazion, also known as a meibomian gland cyst, which is caused by the obstruction of the meibomian gland, leading to the retention of secretions and resulting in chronic inflammation. The cyst may vary in siz...

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