Can Cataract Surgery Cause Farsightedness and Can It Be Corrected?
After cataract surgery, if the vision test shows hyperopia (farsightedness), is it possible to change hyperopia to emmetropia (normal vision) or myopia (nearsightedness)? Dear Doctor, 1. I underwent cataract surgery in both eyes over a year ago, during which monofocal intraocula...
Dr. Cai Wenyuan reply Ophthalmology
Is it normal to have hyperopia after surgery? This is a common situation. Are there ways to change hyperopia to emmetropia or myopia? If the degree is not significant, glasses correction can be considered. After cataract surgery, does the implantation of an artificial lens cause ...[Read More] Can Cataract Surgery Cause Farsightedness and Can It Be Corrected?
Does Blue Light Really Cause Macular Degeneration?
Does blue light cause macular degeneration? Doctor, I recently saw in the news that blue light does not cause macular degeneration. Is this true?
Dr. Cai Wenyuan reply Ophthalmology
There is no clear evidence that blue light causes macular degeneration, but it is still advisable to limit the use of electronic devices and allow your eyes to rest more often.[Read More] Does Blue Light Really Cause Macular Degeneration?
Addressing Severe Myopia and Astigmatism: Seeking Non-Surgical Solutions
A bunch of questions? Hello Doctor: I have been nearsighted for a long time. A few years ago, I got my glasses from a professional optical store, but they did not include astigmatism correction due to comfort considerations. My astigmatism is quite severe, and my nearsightedness ...
Dr. Cai Wenyuan reply Ophthalmology
Hello, please reduce the use of electronic devices and allow your eyes to rest more. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Addressing Severe Myopia and Astigmatism: Seeking Non-Surgical Solutions
Sudden Blurry Vision in Left Eye Upon Waking: Causes and Concerns
Sudden blurred vision in the left eye upon waking up? Hello doctor, today when I woke up, my left eye suddenly had blurred vision (like looking through a veil) for about 3 to 5 minutes. Could this be related to dry eye syndrome? I have been suffering from dry eye syndrome for ten...
Dr. Cai Wenyuan reply Ophthalmology
Hello: If you have pressed on your eyeball, observe the situation. If the symptoms persist, seek medical attention. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Sudden Blurry Vision in Left Eye Upon Waking: Causes and Concerns
Dark Spot on the White of the Eye: Causes and When to Seek Help
There is a dark brown spot on the sclera of the left eye, near the inner canthus close to the nose? Hello Doctor: About a month ago, I noticed a dark brown spot on the sclera of my left eye, near the inner corner close to the nose, adjacent to the edge of the cornea. It is quite ...
Dr. Cai Wenyuan reply Ophthalmology
Hello: The most common issue is pigmentation, which is mostly benign. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan Hospital, Ministry of Health and Welfare.[Read More] Dark Spot on the White of the Eye: Causes and When to Seek Help
Understanding Occasional Black Shadows After Waking Up
Seeing oval black spots upon waking up? Hello Doctor: Occasionally, when I just wake up, I see a black oval shadow in front of my eyes. Then, when I close my eyes again and open them, the shadow gradually fades. After closing my eyes for a few seconds, the shadow is gone. Could y...
Dr. Cai Wenyuan reply Ophthalmology
Hello, it may be vitreous floaters. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Occasional Black Shadows After Waking Up
Understanding Eyelid Swelling: Causes and Treatment Options
Swollen eyes? Excuse me, doctor. Recently, I have developed a hard lump on my eyelid, which has caused some swelling in my eye. It started slowly, initially appearing red, and then it became somewhat hard. After two weeks, it still hasn't gone away. What could this be (what ...
Dr. Cai Wenyuan reply Ophthalmology
Hello, it is most likely a stye. I recommend seeking medical treatment. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan Hospital, Ministry of Health and Welfare.[Read More] Understanding Eyelid Swelling: Causes and Treatment Options
Understanding Eye Pain Triggered by Water Exposure: Causes and Solutions
Eye problems Frequent tearing, sweating, or experiencing pain in the eyes when coming into contact with water, which resolves after rinsing the eyes but recurs a few hours later upon contact with water, could be indicative of several conditions. Possible causes include allergic c...
Dr. Cai Wenyuan reply Ophthalmology
Hello, it may be related to an irritant. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Eye Pain Triggered by Water Exposure: Causes and Solutions
Understanding Blurry Vision: Causes Beyond Nearsightedness
Vision problems If myopia has not worsened but objects are becoming increasingly blurry, what could be the reason? Thank you.
Dr. Cai Wenyuan reply Ophthalmology
Hello, the simplest issue is eye fatigue. Monitor the situation, and if the symptoms persist, seek medical attention. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Blurry Vision: Causes Beyond Nearsightedness
Balancing Vision: Cataract Surgery Options for Different Eye Degrees
Cataract refractive balance preservation? Hello Doctor: I have -800 diopters in my left eye and -400 diopters in my right eye. The left eye has cataracts, while the right eye is normal, and the OCT of the optic nerve is normal. The doctor suggested that I could retain -200 diopte...
Dr. Cai Wenyuan reply Ophthalmology
Hello, there are actually quite a few options for prescription selection, and it mainly depends on individual needs. It is best to discuss this with the surgeon. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan Hospita...[Read More] Balancing Vision: Cataract Surgery Options for Different Eye Degrees
Understanding Eye Drops: Concerns About Dry Eyes and Flashing Lights
Eye drop issues? Hello Doctor, I have been visiting an ophthalmologist for the past month due to issues with dry eyes and floaters. On Wednesday, I had my first fundus examination, and the retina appeared normal. The doctor prescribed artificial tears and methacholine eye drops (...
Dr. Cai Wenyuan reply Ophthalmology
Hello: You can continue to observe and keep taking the medication. Wishing you safety and health. Sincerely, Dr. Cai Wenyuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Eye Drops: Concerns About Dry Eyes and Flashing Lights
Can Playing Video Games in the Dark Cause Glaucoma?
Eye problems Hello doctor, last night I was playing on my PS4 when my mom accidentally turned off the lights for a few seconds. I was looking at the screen's brightness for a few seconds before the lights came back on. Will this cause me to develop glaucoma?
Dr. Cai Wenyuan reply Ophthalmology
Hello: No problem, thank you. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Can Playing Video Games in the Dark Cause Glaucoma?
Is Switching Between Two Pairs of Glasses Harmful to Your Eyes?
Is it good for the eyes to alternate between two pairs of glasses? Due to work requirements, I need to look at the computer for long periods, so I got a pair of glasses with a lower prescription that are sufficient for viewing the computer screen. After work, I switch back to my ...
Dr. Cai Wenyuan reply Ophthalmology
Hello: It will not specifically harm the eyes, but it is not necessary. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan Hospital, Ministry of Health and Welfare.[Read More] Is Switching Between Two Pairs of Glasses Harmful to Your Eyes?
Understanding Eye Tremors and Vision Issues in Young Adults
Adults experiencing eye tremors, small rashes on the eyelids, and decreased vision? Director Tsai: Hello, two years ago I became a civil servant and moved to Taipei alone for work convenience, not often returning home to see my parents. Since my residence has access to free Wi-Fi...
Dr. Cai Wenyuan reply Ophthalmology
Hello, I apologize, but your issue may require a physical examination to determine. I recommend seeking medical attention. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfa...[Read More] Understanding Eye Tremors and Vision Issues in Young Adults
Swimming After Retinal Laser Surgery: When Is It Safe?
Postoperative care after retinal tear laser surgery? How long after the procedure can I swim? Thank you, doctor.
Dr. Cai Wenyuan reply Ophthalmology
Hello: There are no restrictions since there are no wounds. However, if the hole is too large, it is advisable to avoid vigorous exercise. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welf...[Read More] Swimming After Retinal Laser Surgery: When Is It Safe?
Understanding High Eye Pressure: Causes and Solutions
How to manage high intraocular pressure? I would like to ask... I experience high intraocular pressure about 2-3 times a year, but during my previous examinations at your clinic and at Linkou Chang Gung Memorial Hospital, my pressure was normal, and even the fundus photography sh...
Dr. Cai Wenyuan reply Ophthalmology
Hello, high intraocular pressure accompanied by headaches and nausea is a symptom of acute angle-closure glaucoma, which is different from your condition. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospit...[Read More] Understanding High Eye Pressure: Causes and Solutions
Understanding High Eye Pressure: Symptoms and Solutions
How to address high intraocular pressure? I would like to ask... I experience elevated intraocular pressure about 2-3 times a year, but during my previous examinations at your clinic and at Linkou Chang Gung Memorial Hospital, my pressure was normal, and even the fundus photograp...
Dr. Cai Wenyuan reply Ophthalmology
Hello, high intraocular pressure accompanied by headaches and nausea is a symptom of acute angle-closure glaucoma, which is different from your condition. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospit...[Read More] Understanding High Eye Pressure: Symptoms and Solutions
Understanding High Eye Pressure: Symptoms and Solutions Explained
How to manage high intraocular pressure? I would like to ask... I experience elevated intraocular pressure about 2-3 times a year, but during my previous examinations at your clinic and at Linkou Chang Gung Memorial Hospital, my pressure was normal. Even the fundus photography sh...
Dr. Cai Wenyuan reply Ophthalmology
Hello, high intraocular pressure accompanied by headaches and nausea is a symptom of acute angle-closure glaucoma, which is different from your condition. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Chief of Ophthalmology, Taoyuan General Hospital, Ministry of He...[Read More] Understanding High Eye Pressure: Symptoms and Solutions Explained
Understanding High Eye Pressure: Risks, Treatments, and Care Tips
Intraocular pressure issues? Hello Doctor, I have been experiencing consistently elevated intraocular pressure, usually around 22-23 mmHg. I have had a comprehensive eye examination at a major hospital, and my fundus examination appeared normal. I would like to ask if having this...
Dr. Cai Wenyuan reply Ophthalmology
Hello, intraocular pressure is not the sole criterion for diagnosing glaucoma; regular monitoring is sufficient. Reducing the use of electronic devices and allowing your eyes to rest is beneficial. Corneal thickness can affect the accuracy of intraocular pressure readings; genera...[Read More] Understanding High Eye Pressure: Risks, Treatments, and Care Tips
Understanding Eye Injuries from Foreign Objects: Symptoms and Risks
If an object strikes the eye? If a small foreign object strikes the eye, it is possible to experience immediate sharp pain and tearing. There is also a possibility that small metal or plastic fragments could embed in the eyeball without causing noticeable discomfort, and the appe...
Dr. Cai Wenyuan reply Ophthalmology
Hello, the chances are slim, and there are likely to be symptoms. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Eye Injuries from Foreign Objects: Symptoms and Risks