Visual field, Ophthalmology FAQ - Page 35

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Managing Eye Injuries and Complications After a Car Accident

Car accident In a car accident (self-fall, no smoking or drinking involved), there was intracranial hemorrhage, chest contusions with fractures of the right clavicle and the second to eighth ribs, as well as right-sided hemothorax. There were also blunt abdominal injuries with in...


Dr. Qiu Hanqing Reply:
Hello: The mechanisms of injury from car accidents are diverse, and there are many causes that can lead to visual field defects, including intraocular hemorrhage, retinal detachment, traumatic optic neuropathy, and even visual pathway damage due to traumatic brain injury. Each ca...

[Read More] Managing Eye Injuries and Complications After a Car Accident


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


Understanding Retinal Tears and Detachment: Symptoms and Concerns

Regarding retinal tears and detachments? Hello Doctor: You previously told me that "even after laser treatment, it is still possible to experience photopsia. If there is an issue with the retina, there are usually warning symptoms, including: <1> a sudden increase in f...


Dr. He Jianxian Reply:
Hello, Miss: Thank you for your inquiry. I would like to respond to your question and provide the following advice: Your issue can only be monitored through regular follow-up appointments. If there are any real concerns, the physician will address them accordingly. There is no ne...

[Read More] Understanding Retinal Tears and Detachment: Symptoms and Concerns


Understanding Flashing Lights After Retinal Laser Treatment: What You Need to Know

Retinal laser treatment Hello Doctor: I am a person with high myopia, with -500 in my left eye and -600 in my right eye. During my pregnancy this year, I experienced flashes of light, and after giving birth, I underwent laser treatment. However, it has been a month since the proc...


Dr. He Jianxian Reply:
Hello, Miss: Thank you for your inquiry. I would like to respond to your question and provide the following advice: The phenomenon you described as "flashes" is medically referred to as "photopsia." Its cause is due to traction on the retina from external forc...

[Read More] Understanding Flashing Lights After Retinal Laser Treatment: What You Need to Know


High Myopia and Retinal Detachment: Understanding Risks and Eye Care

High myopia and retinal detachment? I am highly myopic and experienced eye pain while conducting experiments in the lab back in June. I have always known that individuals with high myopia need to undergo annual fundus examinations, but I have been avoiding this due to my fear of ...


Dr. He Jianxian Reply:
Hello, sir: Thank you for your inquiry. I would like to respond to your question and provide the following advice: High myopia and retinal detachment are two different conditions. Since you have undergone numerous examinations for retinal detachment and no tears have been found, ...

[Read More] High Myopia and Retinal Detachment: Understanding Risks and Eye Care


Understanding Eye Flickering After Sudden Light Exposure: Causes and Concerns

When closing the eyes for an extended period and suddenly moving to a brightly lit area, the eyes may experience flickering sensations? Hello, doctor: This question has puzzled me for a long time. I have asked friends and online acquaintances, but some believe it is a normal phen...


Dr. He Jianxian Reply:
Hello, sir: Thank you for your inquiry. I would like to respond to your question and provide the following advice: Generally, when the eyes are exposed to strong light, everyone may experience some discomfort; however, the visual phenomena may vary from person to person. The simp...

[Read More] Understanding Eye Flickering After Sudden Light Exposure: Causes and Concerns


Understanding Floaters and Retinal Health: What You Need to Know

Regarding floaters and retinal issues? Hello, doctor. I have myopia of about 700-750 degrees in both eyes, with astigmatism of 50 degrees. Previously, after sneezing, I noticed light spots, and later experienced flashes and changes in floaters. I went to a nearby clinic for an ex...


Dr. He Jianxian Reply:
Hello, sir: Thank you for your inquiry. I would like to address your question and provide the following advice: The symptoms you are experiencing are clinically referred to as "photopsia." This phenomenon is typically caused by the movement of the vitreous body in the e...

[Read More] Understanding Floaters and Retinal Health: What You Need to Know


Understanding Recovery After Retinal Detachment Surgery: What to Expect

Recovery status after retinal detachment surgery? My mother (58 years old) experienced retinal detachment in her left eye, resulting in visual field loss. She underwent vitrectomy last Thursday, and during follow-up visits on Friday and this Monday, the doctor reported that every...


Dr. Wang Zhangji Reply:
It is advisable to have an examination as soon as possible, as there may be incomplete recovery of the retina, or it could simply be residual vitreous. It is better to confirm this. Wishing you a speedy recovery.

[Read More] Understanding Recovery After Retinal Detachment Surgery: What to Expect


Does Intense Exercise Worsen Cataracts and Floaters?

Cataract and intense exercise? Hello, doctor. I have symptoms of cataracts, specifically seeing a layer that looks like a spider web. I also experience some floaters when I play basketball. I would like to know if engaging in intense exercise, such as playing basketball, could fu...


Dr. Feng Jiefan Reply:
Hello: Cataracts and floaters are two different conditions, both of which can cause opaque objects to be seen in the left visual field. Cataracts may worsen due to exposure to sunlight, while vigorous exercise, as long as there is no ocular trauma, will not have an impact. Wishin...

[Read More] Does Intense Exercise Worsen Cataracts and Floaters?


Understanding Visual Impairment: What Does 16-20 dB Mean for Daily Life?

Visual impairment - physical and mental disabilities In the context of visual impairment, "db" refers to decibels, which is a unit of measurement used to quantify the level of visual acuity loss. A visual acuity of 16 to 20 decibels indicates moderate visual impairment....


Dr. Feng Jiefan Reply:
Hello: What you are asking about should refer to the standards for visual impairment, one of which pertains to visual field defects. Decibels (dB) are the units used to measure visual field loss. If you have questions regarding this matter, you can submit a request for evaluation...

[Read More] Understanding Visual Impairment: What Does 16-20 dB Mean for Daily Life?


Understanding Glaucoma Medications: Concerns and Side Effects

Please inquire about glaucoma medications? I was informed during a fundus examination in 2006 that there was a cupping of the optic nerve, indicating a possibility of glaucoma. Since then, I have been undergoing regular visual field and OCT examinations every six months at a teac...


Dr. Wang Zhishun Reply:
Hello, Mikelan (metolazone) may have some effects on the heart, but generally, the impact is minimal. It is recommended that you discuss this with a cardiologist and an ophthalmologist. As for Xalatant (latanoprost) and Mikelan, currently, there is no known liver or kidney damage...

[Read More] Understanding Glaucoma Medications: Concerns and Side Effects


Understanding Flashing Lights in Vision: Causes, Duration, and Treatment Options

Flashes of light in the right eye? Hello, doctor. I have high myopia in both eyes, over 1000 degrees, specifically 1200 and 1250, with flashes of light at 200. Recently, I have been experiencing large flashes that span my entire visual field. After a fundus examination, it was fo...


Dr. Wang Zhishun Reply:
Hello, the symptoms of posterior vitreous detachment can vary in duration and are difficult to predict. Flashes of light may occur before the vitreous completely detaches. However, the most important aspect is the retina, and regular eye examinations should be prioritized. Rega...

[Read More] Understanding Flashing Lights in Vision: Causes, Duration, and Treatment Options


Understanding and Managing Floaters: Expert Advice for Eye Health

Floaters issue, please consult a physician? Dear Doctor, I had an examination for my left eye and was diagnosed with physiological floaters. My right eye had a retinal tear, which has been treated with laser surgery. However, recently, my floaters in the left eye have worsened....


Dr. Wang Zhangji Reply:
Dear Mr. Chen, Hello. The floaters caused by vitreous degeneration generally diminish over time. If they are large and located in the center of your visual field, vitreous surgery may be considered. However, I personally do not recommend undergoing major surgery for a symptom th...

[Read More] Understanding and Managing Floaters: Expert Advice for Eye Health


Understanding Mydriatic Agents: Effects on Eye Health and Vision

Regarding mydriatics? Hello Doctor: I am currently 34 years old. My left and right eyes have myopia of -250 and -275, respectively, with astigmatism of -1.25 and -1.00. Recently, I visited a clinic due to eye fatigue, and the doctor prescribed a short-acting dilating agent, which...


Dr. Feng Jiefan Reply:
1. The symptoms of glaucoma are quite diverse, and it is necessary to have data from intraocular pressure measurements, fundus examinations, and visual field tests to make a diagnosis. If there are any doubts, one should consult a physician for an examination. 2. Mydriatic agen...

[Read More] Understanding Mydriatic Agents: Effects on Eye Health and Vision


Managing Eye Sensitivity and Fatigue After Tuberculosis Treatment

Vision problems I was treated for tuberculosis for nine months from September 1997 to June 1998, and I stopped the medication in October 1998. Since then, my eyes do not seem to have improved. I am very sensitive to light and bright colors. Watching television and using the compu...


Dr. Ke Meilan Reply:
Hello: Tuberculosis medications may have effects on some patients. Please see an ophthalmologist promptly, take vitamin B daily, and have a visual field test to monitor visual perception abilities.

[Read More] Managing Eye Sensitivity and Fatigue After Tuberculosis Treatment


Understanding Glaucoma: Is Your Vision Below 0.02 on the Chart?

Questions about glaucoma? Hello, doctor. My friend underwent trabeculectomy for glaucoma 8 to 9 years ago. During a recent follow-up visit, the physician issued a diagnosis report stating that the visual acuity in the left eye is 20 cm with the ability to count fingers, and the a...


Dr. Ke Meilan Reply:
Hello Mr. Chen: Dr. Komeilan has answered the question: Yes. Wishing you health and safety. Ophthalmology, 99/08/27.

[Read More] Understanding Glaucoma: Is Your Vision Below 0.02 on the Chart?


Understanding Glaucoma: Managing Eye Pressure and Treatment Options

About glaucoma? I apologize for the inconvenience, but I would like to ask Dr. Wang about glaucoma. I was diagnosed with early-stage glaucoma symptoms at a hospital in the eastern part of Taiwan, with an intraocular pressure (IOP) of 27 mmHg. I have been using Aiferm Eye Drops 0....


Dr. Wang Zhangji Reply:
It is recommended to also accept examinations of the optic nerve and visual field.

[Read More] Understanding Glaucoma: Managing Eye Pressure and Treatment Options


Do Everyday Activities Affect Your Retina Health? Expert Insights

Does daily activity affect the retina of the eyes? Dear Director Hu, Hello. I underwent retinal reattachment surgery and laser treatment on my left eye in 2007, and laser treatment on my right eye in 2007 as well. You previously advised me to avoid activities that involve gravit...


Dr. Hu Yusheng Reply:
Hello: There are certain movements in daily life that are unavoidable, and vibrations are inevitable. If you experience new symptoms (such as worsening of floaters, seeing flashes of light, changes in your visual field, or changes in vision), you should consult a physician. Addit...

[Read More] Do Everyday Activities Affect Your Retina Health? Expert Insights


Unexplained Blurry Vision: Seeking Answers for Left Eye Issues

Blurred vision with an unknown cause? Dear Dr. Wang, I noticed blurred vision in my left eye around the end of last year, feeling as if there was a layer of oil floating on the surface of my eye. I initially thought it was due to wearing contact lenses, which caused eye fatigue,...


Dr. Wang Yuwei Reply:
Hello Marian: I'm not sure how severe the blurriness in your left eye is, but it's important to note that the diagnosis of any condition does not necessarily improve with more tests. A detailed in-person consultation is more effective in identifying the underlying cause...

[Read More] Unexplained Blurry Vision: Seeking Answers for Left Eye Issues


Understanding High Eye Pressure: Treatment Options and Long-Term Effects

Confusion about Glaucoma Thank you for your previous response, Doctor. I would like to ask for further analysis on the following issues: I have some questions that I do not understand: Regarding patients with elevated intraocular pressure (IOP) who are not diagnosed with glauco...


Dr. Xie Wenzhen Reply:
Hello, thank you for your question. Here are my suggestions: 1. Although topical medications generally have lower side effects, they are still drugs, so it is advisable not to use them unless necessary. 2. Since responses can vary from person to person, I recommend consulting ...

[Read More] Understanding High Eye Pressure: Treatment Options and Long-Term Effects


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