Understanding Eye Redness: Causes and Solutions for Contact Lens Users
Localized redness in the eyes, conjunctival injection? Hello, Doctor Gao! I'm sorry to bother you again! Since January, I've been wearing silicone hydrogel contact lenses, and I've noticed a significant improvement in oxygen permeability. However, I often experienc...
Dr. Gao Pilin Reply:
Hello Mr. Lin: Red eyes can sometimes be due to conjunctival vascular congestion. If there is no discomfort, it should resolve on its own and is likely not a concern. Weight loss may not be related to intraocular pressure or eye redness; however, blood pressure may decrease, whic...[Read More] Understanding Eye Redness: Causes and Solutions for Contact Lens Users
Understanding Combigan: Effects on Pupil Size and Myopia Management
Combigan eye drop issues? Hello, Dr. Gao. Due to my high myopia and elevated intraocular pressure, I have been using eye drops to manage my eye pressure. Last week, I switched to Combigan (twice a day, 12 hours apart). After using it for the first time yesterday, I noticed that m...
Dr. Gao Pilin Reply:
Hello: Combigan may cause miosis as a potential side effect. Regarding medication and interactions, it is important to refer to clinical examination results, so it is best to discuss this with your attending physician. Diagnoses and recommendations cannot be made without proper e...[Read More] Understanding Combigan: Effects on Pupil Size and Myopia Management
Understanding Eye Pressure and Pupil Issues: Key Questions Answered
Intraocular pressure and pupil issues? Hello, Dr. Gao. I would like to ask the following questions, and I appreciate your help in clarifying them. Thank you. 1. I found information online regarding the relationship between intraocular pressure (IOP) and body posture, indicating ...
Dr. Gao Pilin Reply:
Hello: 1. The difference is not significant. 2. It should not happen. 3. Short-acting mydriatics cannot control myopia; atropine is effective. 4. It should not happen. 5. It is best to discuss your concerns with your attending physician. The ophthalmology department at Puzi Hospi...[Read More] Understanding Eye Pressure and Pupil Issues: Key Questions Answered
Do Glaucoma Surgeries Require Pupil Dilation with Eye Drops?
Glaucoma surgery & mydriatics Is it necessary to use mydriatic drops before glaucoma surgery to dilate the pupil for easier surgical access?
Dr. Liang Ce Reply:
It is advisable for you to discuss the above situation further with your attending physician. Thank you, and wishing you good health![Read More] Do Glaucoma Surgeries Require Pupil Dilation with Eye Drops?
Understanding Redness Around the Pupil: Contact Lens Concerns
Bloodshot sclera around the black pupil? Hello, Doctor Gao. In February, there was a day when I wore silicone hydrogel contact lenses for too long without paying attention to the duration. After taking them off, I noticed a red area with some spots on the outer side of my left ey...
Dr. Gao Pilin Reply:
Hello Mr. Chen: If the physician has assessed that you can wear them, then you should be able to wear them with confidence. If your eyes are red or uncomfortable, you can still wear them once they feel better. Just try to minimize the wearing time and use high oxygen-permeable, m...[Read More] Understanding Redness Around the Pupil: Contact Lens Concerns
How Long is the Validity of Pupil Dilation Exams?
Pupil Dilation Duration Hello, doctor. I would like to inquire about the validity period of a dilated eye exam. I had a dilated exam at the end of December last year, and there were no issues. However, I am a bit concerned about my macula recently, so I would like to know how lon...
Dr. Gao Pilin Reply:
Hello, Wei: How often you should have your retina checked depends on the condition of your eyes. If your vision has not deteriorated, once a year should be sufficient. However, it is still important to consult with your examining physician, who will assess your situation and info...[Read More] How Long is the Validity of Pupil Dilation Exams?
Understanding Traumatic Optic Nerve Injury and Vision Loss After an Accident
Optic nerve injury My wife was involved in a car accident on February 25, where she sustained a frontal impact injury to her right eye. After receiving treatment for some time, she developed significant bruising in her left eye and was recently discharged from the hospital, requi...
Dr. Gao Pilin Reply:
Hello, Afang: Injuries to the brain, orbit, or eyeball can potentially damage the optic nerve, which can be categorized into direct and indirect injuries. Direct traumatic optic neuropathy results from the optic nerve being directly torn by external force, or being severed by bon...[Read More] Understanding Traumatic Optic Nerve Injury and Vision Loss After an Accident
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...[Read More] Does Prolonged 3C Device Use Increase Eye Pressure and Risk of Glaucoma?
Understanding Eye Fatigue: The Role of Psychological Factors
Psychological factors can cause swelling and soreness in the eyes? Dear Dr. Gao, Thank you for your clarification in article #165232. However, I have been struggling with eye fatigue that I cannot seem to resolve. In the past month, I have seen two ophthalmologists who indicated...
Dr. Gao Pilin Reply:
Hello Jerry: When looking at a smartphone without glasses, sometimes the screen may appear to be concave due to an optical habit. It's similar to how new myopic glasses can make the ground appear elevated, and when you take them off, it looks depressed. Eye fatigue can somet...[Read More] Understanding Eye Fatigue: The Role of Psychological Factors
Common Eyewear Concerns: Effects of Lens Issues and Prescription Accuracy
Inquiry Consultation Dear Dr. Gao, Thank you very much for your response to my personal inquiries; I have truly benefited from your insights. This time, due to the delamination of my eyeglass lenses, I have come to understand many ophthalmological concepts that I previously only...
Dr. Gao Pilin Reply:
Hello, Ah-Hsiang: 1. No, it won't happen. 2. There is no correlation. 3. No, it won't happen. 4. Yes, the eyes can get used to new glasses; there may be a transition period, which can vary from person to person. 5. It may not necessarily be caused by the prescription. ...[Read More] Common Eyewear Concerns: Effects of Lens Issues and Prescription Accuracy
Understanding Pupil Granules: Eye Discomfort with Contact Lenses
There are particles in the pupil? Hello, I have been wearing rigid gas permeable contact lenses during the day for over two years. Recently, I have been feeling the urge to rub my eyes after wearing them for a while, and there is some discomfort when I touch my right eye. After r...
Dr. Gao Pilin Reply:
Hello: First, it is important to determine whether the lump is located under the eyelid, as lumps that can be felt are usually chalazia. Granules should not typically appear on the pupil; if they do, it is advisable to seek medical attention promptly to check for any underlying c...[Read More] Understanding Pupil Granules: Eye Discomfort with Contact Lenses
Post-Retinal Detachment Surgery: Managing Complications and Concerns
Post-retinal detachment surgery Dear Doctor, I underwent surgery for retinal detachment around the end of September. After the surgery, I followed the doctor's advice to lie face down, but I experienced significant postoperative bleeding, severe enough that my eye was fill...
Dr. He Jianxian Reply:
Hello Casper: First, let me clarify that silicone oil is transparent. Generally, if silicone oil is present in the eye for a period of time, it may be considered for removal, unless there is a concern about retinal detachment, in which case it may not be removed. As for why your ...[Read More] Post-Retinal Detachment Surgery: Managing Complications and Concerns
Choosing the Right Eye Hospital: Tips for Better Care
Eye & Hospital Selection Hello, doctor. Thank you for your previous response. I have been experiencing multiple uncomfortable symptoms in my eyes for the past month. I visited a well-known large hospital, where doctors generally have patients sit in front of the fundus camera...
Dr. Gao Pilin Reply:
Hello Mr. Yu: Unequal pupil size can be seen in about 20% of the population as a normal variation, so it may not necessarily indicate a problem. However, to clarify the issue, it is recommended that you visit a hospital with an ophthalmology department for an examination. In Taiw...[Read More] Choosing the Right Eye Hospital: Tips for Better Care
Understanding Pupil Dilation Effects on Vision Clarity
Pupil Dilation Issues The left eye has a vision of 1.0 with a myopia of 50 degrees, while the right eye has a vision of 1.2. Recently, the right eye has been feeling blurry. Both eyes were treated with 0.25% tropicamide for dilation. Typically, dilation causes blurred vision for ...
Dr. Gao Pilin Reply:
Hello, Jun: Based on your vision and prescription, it seems that the two eyes are functioning differently. The right eye may not be fully operational, and the ciliary muscle may not be completely paralyzed. At the E-Hospital in Puzi, Taiwan, the ophthalmology department is open o...[Read More] Understanding Pupil Dilation Effects on Vision Clarity
Understanding the Risks of LED and Laser Light Exposure to Eyes
Bright light exposure to the eyes? 1. Are the flashlight functions on current smartphones all LED lights? Could they potentially contain laser light? 2. If a smartphone flashlight shines into the eyes for about 5 seconds under normal conditions, will it cause damage to the surfa...
Dr. Gao Pilin Reply:
Hello, Xiao Qiang: 1. The mobile phone light is generally LED; LED is not a laser. 2. In a short duration, it should not cause harm, as no experiments have been conducted, and the intensity of light can vary. 3. No experiments have been conducted, and the light from a flashlight...[Read More] Understanding the Risks of LED and Laser Light Exposure to Eyes
Understanding Optos 200-Degree Ultra-Widefield Imaging in Eye Care
Optos 200-degree ultra-widefield non-dilated fundus photography? 1. I would like to ask if, during the Optos 200-degree ultra-widefield non-dilated retinal imaging examination, it is possible for the device to come into contact with the cornea. During the procedure, my eyes had t...
Dr. Gao Pilin Reply:
Hello Kuan-Ying, 1. To see a wider field, according to optical principles, one should be closer to the eye. However, under normal circumstances, this should not touch the cornea, so there should be no risk of infection. 2. Traditional dilated fundus examinations and photography ...[Read More] Understanding Optos 200-Degree Ultra-Widefield Imaging in Eye Care
Is Pupil-Dilating Eye Drops Safe for Children with Glaucoma?
Is it appropriate to use mydriatic eye drops for glaucoma? Hello, doctor. My child was diagnosed with glaucoma in one eye during elementary school. We have been using eye drops and monitoring the condition for seven years. Now, the eye with glaucoma has developed mild myopia, and...
Dr. Liang Ce Reply:
It is advisable for you to discuss the above situation further with your attending physician. Thank you, and wishing you good health![Read More] Is Pupil-Dilating Eye Drops Safe for Children with Glaucoma?
Seeing Shadows and Patterns Upon Waking: Eye Health Insights
Seeing things upon waking up? Hello, doctor. 1. Sometimes when I wake up and open my eyes (the room is dark but light comes through the window), I see a black oval shadow in front of me, which gradually fades and disappears. It feels somewhat like the visual afterimage you get ...
Dr. Gao Pilin Reply:
Hello James: Both of these situations are likely manifestations of floaters. If there are no significant changes, regular check-ups should suffice. In Taiwan, the Department of Ophthalmology at Puzi Hospital is open on Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM t...[Read More] Seeing Shadows and Patterns Upon Waking: Eye Health Insights
Long-Term Use of Mydriatics: Risks of Glaucoma and Other Eye Conditions
Side effects of eye drops? 1. If the angle is normal but there is a predisposition to "chronic" open-angle glaucoma, will long-term use of mydriatic agents induce glaucoma? 2. I have seen different opinions online. Doctor A says, "Long-term use should be cautious ...
Dr. Gao Pilin Reply:
Hello Daniel: Open-angle glaucoma is less likely to experience acute attacks due to mydriatic agents. Closed-angle glaucoma is more prone to such occurrences. Mydriatic agents cause the pupils to dilate, increasing the amount of light entering the eye. Prolonged exposure to brigh...[Read More] Long-Term Use of Mydriatics: Risks of Glaucoma and Other Eye Conditions
Understanding Glaucoma: Key Questions and Insights for Patients
Glaucoma issues? 1. If a person has over 200 degrees of myopia and astigmatism, will the visual field testing instrument, which corrects refractive errors, adjust for astigmatism in addition to myopia? Does the existing astigmatism affect the visual field test results? 2. Since ...
Dr. Gao Pilin Reply:
Hello, Ah Hou: 1. I have not used this type of visual field instrument, so I am unsure if it can correct astigmatism. However, mild astigmatism may not require correction. 2. Unless the pupil is very small, it generally does not significantly affect the visual field and can be o...[Read More] Understanding Glaucoma: Key Questions and Insights for Patients