Do Dilating Drops Affect Floaters? Understanding Eye Exam Risks
Will mydriatic agents affect floaters? Due to high myopia, I received dilating drops at the hospital yesterday for a retinal examination. Initially, I only had a slight occurrence of floaters, but this morning it has increased to a larger area in the center. Is this due to the di...
Dr. He Jianxian Reply:
Hello: Essentially, dilation of the pupils will not affect our retina or the condition of floaters. Physiologically, in dimly lit environments, our pupils naturally dilate, so we experience physiological dilation every day. Therefore, there is no need to fear that a dilated eye e...[Read More] Do Dilating Drops Affect Floaters? Understanding Eye Exam Risks
Understanding Post-Retinal Detachment Surgery Vision Changes
Retinal detachment surgery Hello Dr. Wang, I had a scleral buckle surgery three weeks ago due to retinal detachment. Today, while applying eye drops, I noticed that the redness and swelling around my eye have significantly decreased, and I can see a small ring of white around my ...
Dr. Wang Zhangji Reply:
Although the surgery has restored the retinal detachment, there is still a possibility of retinal irregularity, especially if there was a detachment in the macula, which can lead to distorted images. It is advisable to have the physician conduct a follow-up examination for confir...[Read More] Understanding Post-Retinal Detachment Surgery Vision Changes
Understanding Eye Flickering: Causes and Solutions for Vision Changes
Eye twitching Hello doctor, I recently noticed that when my eyes transition from dark to bright environments, my vision experiences a flickering effect, alternating between light and dark. For example, when I close my eyes for a while in a well-lit area and then open them, this p...
Dr. Zhuang Yamin Reply:
Dear Ben, Regarding the appearance of flickering lights in your vision, there are generally a few scenarios to consider. The most serious condition is a retinal tear with associated traction, where the flickering sensation is often triggered by movement of the eye in a certain d...[Read More] Understanding Eye Flickering: Causes and Solutions for Vision Changes
Understanding Changes in Vision After Pupil Dilation: A Patient's Inquiry
Hello, doctor. I would like to ask about issues related to dilated eye examinations? Hello Doctor: Yesterday, I went to the Fengyuan Hospital of the Executive Yuan's Department of Health to confirm my myopia prescription. Before dilation, my right eye measured -10.00 diopter...
Dr. Gao Pilin Reply:
Hello: Cycloplegic agents do indeed reduce myopia, and it is rare for someone to experience an increase in myopia after instillation, especially to such a significant degree. I can think of a few possible reasons: 1. Corneal edema, which may be caused by the eye drops, could lead...[Read More] Understanding Changes in Vision After Pupil Dilation: A Patient's Inquiry
Understanding Unexplained Visual Field Loss: Causes and Insights
Unexplained visual field loss Hello Doctor, last December I experienced a fist-sized visual field defect in my right eye, specifically in the nasal peripheral vision (25-40 degrees). Despite seeking medical attention, the cause of this defect remains undetermined. The obscuration...
Dr. Wang Zhangji Reply:
In bright light, the pupils constrict. If there is localized opacification in the lens, it may obstruct the visual field. When the light diminishes, the pupils dilate, allowing light to enter from the periphery to compensate. However, you mentioned that this is no longer occurrin...[Read More] Understanding Unexplained Visual Field Loss: Causes and Insights
Trouble Opening Right Eye After Sleep: Possible Causes and Solutions
Waking up with the right eye unable to open? Hello Dr. Wang, Recently, I have been waking up and finding that I cannot easily open my right eye naturally (it is not stuck due to discharge); I have to exert some willpower to open it. Additionally, I have some other symptoms that ...
Dr. Wang Zhishun Reply:
Hello, your description is very detailed. Regarding ophthalmology, there may be symptoms similar to computer vision syndrome, dry eye syndrome, and strabismus, so it is recommended to see an ophthalmologist for an examination. For other symptoms, it is advisable to consult a neur...[Read More] Trouble Opening Right Eye After Sleep: Possible Causes and Solutions
Can Pupil-Dilating Drops Correct Vision at Age 21?
Vision correction issues? I would like to ask if I can still use dilating agents to correct my vision now that I am 21 years old?
Dr. Wang Zhangji Reply:
Mydriatic agents are primarily used to treat pseudomyopia. It can be tried at the age of 21, but the effectiveness may not be very good.[Read More] Can Pupil-Dilating Drops Correct Vision at Age 21?
Understanding Blurry Vision: Causes and Solutions for Eye Discomfort
Blurred vision Hello Doctor, I am a 29-year-old male with no significant medical history or family history of diseases. I have myopia in both eyes, approximately -700 diopters, and I wear regular glasses. Two years ago, I had a retinal tear and underwent laser surgery at a genera...
Dr. Guo Jinliang Reply:
It is recommended that you return to the hospital for a re-examination of your retina, especially since you mentioned in your letter that you have high myopia and a history of retinal tears. Additionally, whether it is a refractive issue needs to be assessed through a refraction ...[Read More] Understanding Blurry Vision: Causes and Solutions for Eye Discomfort
Impact of Close Flash Photography on Eye Health: What You Need to Know
The eyes were exposed to a close-up flash? Hello Dr. Wang, today during my break at school, a classmate used a camera flash very close to my eyes (about 10 centimeters away). At that moment, I was in a daze, and the light directly hit my eyes, resulting in a rectangular afterimag...
Dr. Wang Zhishun Reply:
Hello, classmate. Theoretically, the light from a flash is harmless to normal eyes because: 1. The pupil constricts; 2. The light from a flash belongs to the visible spectrum and does not contain ultraviolet rays like sunlight; 3. The light from a flash is diffused rather than fo...[Read More] Impact of Close Flash Photography on Eye Health: What You Need to Know
Understanding the Side Effects of Atropine Eye Drops for Myopia
Side effects of atropine? Hello, does ATROPINE eye drops for myopia have any side effects?
Dr. Feng Jiefan Reply:
Common effects of atropine include relaxation of the ciliary muscle, making it more difficult for patients to focus, which can lead to inconvenience in near vision. Additionally, it causes pupil dilation, resulting in increased sensitivity to light, so proper sun protection is ad...[Read More] Understanding the Side Effects of Atropine Eye Drops for Myopia
Understanding Yellowing Eyes: Causes, Symptoms, and Solutions
Yellowing of the sclera with tenderness? Hello Doctor: My left eye's sclera has been turning yellow since February of this year, and it has spread to the other eye. Initially, the yellowing was mainly under the cornea, but it has extended to the upper half of the eye, with t...
Dr. Ke Meilan Reply:
I think you are too tired. Additionally, yellowing of the sclera can indicate liver function issues; if liver function tests are normal, there is no need to worry too much, as this is not an infectious disease. Putting too much pressure on yourself while studying can actually dep...[Read More] Understanding Yellowing Eyes: Causes, Symptoms, and Solutions
Understanding Bilateral Pupil Dilation After Laser Eye Surgery
Bilateral pupil dilation? Hello, doctor. About a year and a half ago, I underwent laser surgery for myopia. After that, I recovered normally and did not experience any issues. However, in the past two to three months, when I go outside during the day, even regular sunlight makes ...
Dr. Wang Zhangji Reply:
Pupil dilation may be caused by previous infections of the autonomic nervous system, as well as certain central nervous system disorders. You may want to visit the ophthalmology and neurology departments at a medical center for further evaluation.[Read More] Understanding Bilateral Pupil Dilation After Laser Eye Surgery
Understanding Foreign Body Sensation in the Eye and Pupil Size Differences
Foreign body sensation in the eye? Hello, Doctor: I recently noticed a foreign body sensation in my left eye, but after examination, there was no foreign object present. Could this discomfort be caused by dry eye? Also, I would like to ask if the pupil size is typically the same ...
Dr. Gao Pilin Reply:
Hello, if you feel a foreign body sensation in your eyes, it could be due to the presence of a foreign object, an eye infection, conjunctival stones, dry eye syndrome, or corneal epithelial defects. Generally, the pupil size should be symmetrical in both eyes; however, there are ...[Read More] Understanding Foreign Body Sensation in the Eye and Pupil Size Differences
Is Your Eye Infection Fully Treated? Understanding Discomfort with Contacts
Is the eye infected? Dr. Chen: Several years ago, I developed an infection due to wearing contact lenses, and I have been undergoing treatment for some time. Now, whenever I occasionally wear disposable contact lenses, I feel a foreign body sensation in my left eye, which is very...
Dr. Chen Mengde Reply:
Wearing contact lenses can lead to corneal infections, often due to improper cleaning of the lenses combined with sleeping while wearing them, which reduces the cornea's defense capabilities. Pathogens responsible for corneal infections from contact lenses include bacteria, ...[Read More] Is Your Eye Infection Fully Treated? Understanding Discomfort with Contacts
Understanding Foreign Body Sensation in the Eye: Causes and Solutions
Foreign body sensation in the eye? Hello, doctor. I would like to ask about something. My left eye was fine, but after going to bed, I noticed that it feels like there is something in my eyeball. I've been experiencing this for a while, and it still feels like it's ther...
Dr. Gao Pilin Reply:
Hello, based on your symptoms, it is possible that there is a foreign body in your cornea or that you have developed filaments from the cornea. Please seek treatment at an ophthalmology hospital or clinic as soon as possible. Wishing you good health.[Read More] Understanding Foreign Body Sensation in the Eye: Causes and Solutions
Is Electroretinogram Testing Safe for Eye Health?
Regarding the safety of electroretinography (ERG) testing? Hello, Dr. Hu. I would like to ask if the Electroretinogram (ERG) test is safe. If there is no night blindness, will the test affect the eyes or cause any future harm? Additionally, I have a question regarding dilation. A...
Dr. Hu Yusheng Reply:
Hello: 1. The ERG test is safe. 2. Long-term exposure to sunlight should only be considered for potential UV damage, but there is currently no clear evidence confirming such harm. It is recommended to wear sunglasses and a sun hat to reduce your concerns. Wishing you safety and h...[Read More] Is Electroretinogram Testing Safe for Eye Health?
Understanding Eye Floaters and Eye Health: Causes, Concerns, and Remedies
Vitreous hemorrhage with floaters? Hello Dr. Wang, I have myopia of 800 to 950 degrees and have been experiencing floaters, but they haven't been a major issue until I went to Huangshan two years ago. After descending the mountain, I woke up the next day to find a prominent...
Dr. Wang Zhishun Reply:
Hello, 1. The reason your floaters appear and disappear is that they are moving within the vitreous body of the eye. As long as the retina is normal, there is no need for special concern. There have been articles mentioning that high altitudes can trigger the appearance of floa...[Read More] Understanding Eye Floaters and Eye Health: Causes, Concerns, and Remedies
Unusual Iris Inflammation: Why Is Eye Pressure Decreasing?
Atypical iritis, with intraocular pressure not increasing but decreasing??? Hello Doctor: My older brother visited a local ophthalmology clinic last week due to discomfort in his eyes, but he has not been cured. The doctor suggested it might be iritis and prescribed steroid eye d...
Dr. Gao Pilin Reply:
Iritis can sometimes lead to a decrease in intraocular pressure during the remission phase. The uvea is divided into three parts: the iris, the ciliary body, and the choroid. When inflammation occurs in the anterior part of the uvea, specifically in the iris, it is referred to as...[Read More] Unusual Iris Inflammation: Why Is Eye Pressure Decreasing?
Understanding Hyperopia: Common Concerns and Genetic Factors
Please consult about hyperopia eye issues? Hello Dr. Wang: I currently have hyperopia of over 500 degrees in my left eye and over 300 degrees in my right eye. I had corrective surgery for esotropia when I was younger, and my vision has been around 1.0 in recent checks. However, I...
Dr. Wang Zhishun Reply:
Hello: 1. Regarding the issue of eye alignment, it may be due to pseudostrabismus (asymmetry in the sclera of both eyes) or residual esotropia. Additionally, high hyperopia in both eyes can appear as esotropia (similar to how high myopia can appear as exotropia). If you want to...[Read More] Understanding Hyperopia: Common Concerns and Genetic Factors
Understanding White Rings Around Your Pupils: Causes and Solutions
Pupil issues Hello Dr. Ke: I have a question that has been troubling me for a long time. I hope you can help clarify and resolve my concerns. Generally, people have a pair of normal, dark, and perfect pupils. However, I have a white ring around the outer part of my pupils (the ar...
Dr. Ke Meilan Reply:
Hello: Are you referring to the inner part of the sclera? This is known as a limbal ring, which is a degenerative phenomenon. It typically occurs in individuals over the age of sixty, and there is no effective treatment. If vision is still good, there is no need to worry too much...[Read More] Understanding White Rings Around Your Pupils: Causes and Solutions