Visual field test, Ophthalmology FAQ - Page 17

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Understanding Glaucoma Eye Drops: Key Questions and Considerations

Questions regarding glaucoma eye drops? I am a 43-year-old male seeking information regarding glaucoma eye drops. During my first eye pressure test, I recorded 27 mmHg in the left eye and 28 mmHg in the right eye. Two weeks later, my second eye pressure test showed 25 mmHg in the...


Dr. Xie Wenzhen Reply:
Hello, Sir: Thank you for your inquiry. Here are my responses and suggestions regarding your questions: 1. Yes, it is safe to use the eye drops; they will not cause additional side effects. 2. If you use different eye drops, there may be a reduced efficacy, but there are other...

[Read More] Understanding Glaucoma Eye Drops: Key Questions and Considerations


Understanding Transient Monocular Blindness: Causes and Solutions

Positional monocular transient blindness Hello Doctor: Here are my symptoms: When I lie down or squat and then stand up, I experience temporary blindness in one eye, lasting about 4-5 seconds. The affected eye (always the right one) only shows images in the central area, which th...


Dr. Zhang Yanrui Reply:
You have seen almost all the specialists you need to, and your condition is caused by poor blood circulation. There are no aggressive treatment options available; however, it is still recommended to follow up with an ophthalmologist every two to three months.

[Read More] Understanding Transient Monocular Blindness: Causes and Solutions


How to Reschedule Your Eye Exam and Visual Field Test After a Typhoon

Visual field examination arrangement Hello Dr. Ke, I had originally scheduled an appointment for September 29th in the morning for a visual field and dilation examination, but the clinic is closed that day due to the typhoon. Should I just go online to book any available appointm...


Dr. Ke Meilan Reply:
Hello! Please call 03-5326151. Regarding #2451, may I ask when the visual field test can be scheduled? You can register on the same day as the appointment date. Wishing you peace and good health.

[Read More] How to Reschedule Your Eye Exam and Visual Field Test After a Typhoon


Understanding DB in Visual Field Testing for the Visually Impaired

DB? Hello, I have a question regarding a reference I came across in literature about visual impairment. It mentions the "30-degree program check of the automated visual field center, with an average defect greater than 20 dB (not included)." I would like to understand w...


Dr. Zhang Yanrui Reply:
dB is an abbreviation for Decibel, which is a unit of measurement based on 0.1 log. In visual field testing, the amount of light intensity that gradually decreases from the maximum illumination is expressed in dB.

[Read More] Understanding DB in Visual Field Testing for the Visually Impaired


Understanding Glaucoma: Questions and Concerns for Young Patients

Doctor, I would like to ask if I really have glaucoma? Hello, doctor. I was previously diagnosed with glaucoma, but I have some doubts about whether this is really the case. I noticed that my left eye seems to have a narrowed field of vision, and things look strange. After that, ...


Dr. Ke Meilan Reply:
Hello! If the visual field test is normal and the intraocular pressure is below 22 mmHg, then you can be monitored and temporarily do not need to use medication. If your corneal thickness is greater than 550 microns, you can return for a follow-up in one year.

[Read More] Understanding Glaucoma: Questions and Concerns for Young Patients


Understanding Unusual Vision Symptoms: Seeking Answers for Eye Discomfort

Hello, doctor. Everything I see with my eyes looks strange? Hello Doctor, I would like to ask about my eyes. My right eye is -190 degrees and my left eye is 0 degrees, but I feel that when I look at objects within about 150 centimeters with my left eye, they appear unclear, simil...


Dr. Ke Meilan Reply:
Hello! Please check your actual prescription for proper correction and also undergo a visual field test to assess your light sensitivity. It is advisable to visit a major hospital's ophthalmology department for examination. Don't worry too much, as anxiety won't so...

[Read More] Understanding Unusual Vision Symptoms: Seeking Answers for Eye Discomfort


Can Surgery Correct 650-Degree Eye Disparity and 550-Degree Hyperopia?

With a binocular disparity of 650 degrees and hyperopia of 550 degrees, is surgery an option? Hello, I am 43 years old. I have myopia of -1.00 diopters in my left eye and hyperopia of +5.00 (or +5.50) diopters in my right eye, along with amblyopia. Due to the deterioration of vis...


Dr. Liu Jingxian Reply:
Hello, Sir: When the refractive status of the two eyes is different, it is referred to as anisometropia. Clinically significant anisometropia is defined as a difference in refractive power greater than 2.00 diopters between the two eyes. Anisometropia can cause a disparity in the...

[Read More] Can Surgery Correct 650-Degree Eye Disparity and 550-Degree Hyperopia?


Glaucoma or Migraine? Understanding Eye Health Concerns

Is it glaucoma or a migraine? Hello Doctor: My girlfriend fainted due to severe headaches about three to four years ago and was hospitalized at National Taiwan University Hospital for examination. Eventually, a neurologist diagnosed her with basilar-type migraine. After being dis...


Dr. Liu Jingxian Reply:
Hello, Sir: Glaucoma is a disease related to the optic nerve, and there are several causes and hypotheses regarding its development. The two most commonly discussed types are: one caused by elevated intraocular pressure leading to mechanical damage to the optic nerve, and the oth...

[Read More] Glaucoma or Migraine? Understanding Eye Health Concerns


Understanding Glaucoma: Symptoms, Risks, and Eye Pressure Concerns

Confusion about Glaucoma Hello, I am highly myopic. During my eye examination in mid-August, the doctor mentioned that I have posterior vitreous degeneration and that my macula is not in good condition. He advised me to be cautious about normal-tension glaucoma and macular degene...


Dr. Liu Jingxian Reply:
Hello, Miss: The symptoms you described are not quite consistent with glaucoma; instead, they resemble those of "floaters." To determine if glaucoma is present, regular measurements of intraocular pressure, fundoscopic examination of the optic nerve, and visual field te...

[Read More] Understanding Glaucoma: Symptoms, Risks, and Eye Pressure Concerns


Understanding Narrow Peripheral Vision: Causes and Solutions

Is the visual field of the eyes too narrow? This year, I went to the Motor Vehicle Office for a health check-up in order to take the driving test. One of the tests was the "visual field test," which measures the extent of our peripheral vision. They used a device that i...


Dr. Zhang Yanrui Reply:
If you notice any visual field loss, please seek an eye examination immediately. There are many potential causes for visual field loss, such as retinal detachment, glaucoma, optic neuropathy, and brain tumors. These conditions should not be taken lightly and require prompt treatm...

[Read More] Understanding Narrow Peripheral Vision: Causes and Solutions


Understanding Visual Field Loss After Stroke: Disability Certification Insights

Visual impairment Hello, my father has experienced a stroke, resulting in a 50% loss of vision (measured using the eight-point visual field test). I would like to help him apply for a disability certificate, but the doctor mentioned that he must undergo a different assessment (th...


Dr. Wang Zhangji Reply:
Hello: I apologize, but it is not possible to infer or calculate the results. In fact, to apply for a disability certificate, it is necessary to determine whether it also meets the criteria in the field of neurology. Sincerely, Dr. Wang Zhang-ji, Ophthalmology.

[Read More] Understanding Visual Field Loss After Stroke: Disability Certification Insights


Understanding Visual Field Loss After Brain Tumor Surgery: Eligibility Criteria

Visual field defect Hello doctor, I underwent surgery for a right brain tumor, which has resulted in homonymous hemianopia in both eyes on the left side. I have confirmed this condition through examination. Could you please let me know if I meet the following criteria? Severe: V...


Dr. Ke Meilan Reply:
Hello, may I ask what your best corrected vision is? How much vision loss do you have? Knowing these two results will help determine if you meet the criteria, so please visit a major hospital for an examination. Thank you for your message. Sincerely, Dr. Mei-Lan Ke, Ophthalmology...

[Read More] Understanding Visual Field Loss After Brain Tumor Surgery: Eligibility Criteria


Understanding Optic Nerve Atrophy: Symptoms and Next Steps

Examination of Optic Nerve Atrophy Hello Dr. Wang, I previously asked you about my mother's optic nerve atrophy. I took her to the ophthalmology department at Cheng Kung University, and the doctor confirmed that it is indeed optic nerve atrophy. However, since my mother had ...


Dr. Wang Zhangji Reply:
Hello: Your judgment is correct. In addition to consulting a vascular specialist, you may also seek advice from a neurologist and request a visual field test from an ophthalmologist. Sincerely, Dr. Wang Zhang-ji, Ophthalmology.

[Read More] Understanding Optic Nerve Atrophy: Symptoms and Next Steps


Managing Glaucoma: Concerns About Stopping Eye Medication

I want to stop my glaucoma medication? Hello, I have been informed by my doctor since April 19, 2003, that I have elevated intraocular pressure (IOP) (right eye 21, left eye 20), which may indicate glaucoma. I started using medication (Timolol 2%). After that, except for the fi...


Dr. Ke Meilan Reply:
Hello, you may have low-tension glaucoma. Some doctors believe that an intraocular pressure of 12 mmHg is safe, while others consider 14-15 mmHg to be safe. The side effects of medications can include dry eyes, but this is not common with these two types of eye drops. The managem...

[Read More] Managing Glaucoma: Concerns About Stopping Eye Medication


Understanding Temporary Vision Loss: Causes, Recovery, and Eye Health

Temporary vision loss Hello, doctor. I had an accident last year that resulted in an injury to my right eye. After examination at the hospital, it was found that I had a central retinal artery occlusion, with vision below 0.01. However, a year later, my vision has recovered to 1....


Dr. Cai Jingyao Reply:
Hello, the mechanisms causing unclear vision are very complex and may have many underlying reasons. It is recommended that you return to the clinic for regular follow-up and treatment, as it is difficult to provide a diagnosis based solely on your description. Please come back fo...

[Read More] Understanding Temporary Vision Loss: Causes, Recovery, and Eye Health


Understanding Vision Loss: Possible Causes and Next Steps for Diagnosis

Half of the visual field is not visible during the visual field test? Hello, doctor. My mother seems to have an obstruction in her eye that is blocking her vision, so I accompanied her to Chiayi Christian Hospital to see an ophthalmologist. A CT scan confirmed that there are no b...


Dr. Wang Zhangji Reply:
Hello: If it is the upper right quadrant of the right eye, it may indicate a quarter field defect, which could suggest a brain lesion; however, your CT scan shows no abnormalities. If it is the entire upper half of the right eye, it may be due to vascular occlusion of the optic n...

[Read More] Understanding Vision Loss: Possible Causes and Next Steps for Diagnosis


Understanding After Images: Eye Health Concerns and Diagnostic Tests Explained

Questions about After Image! I sought medical attention because I experience afterimages when looking at things. The doctor arranged a visual field test, but I noticed that while the previous bright spot had not yet disappeared from my vision, the next spot kept appearing continu...


Dr. Hu Yusheng Reply:
Hello: The phenomenon you are experiencing, where you see afterimages, is referred to as "afterimage" in English. Theoretically, visual afterimages are a normal physiological occurrence and should not cause discomfort in daily life. As for the likelihood of seeing a new...

[Read More] Understanding After Images: Eye Health Concerns and Diagnostic Tests Explained


Understanding Macular Degeneration: Causes and Concerns for Eye Health

Macular issues? Hello Dr. Hu, I would like to ask about an issue I've been experiencing. I noticed that the center of my left eye has been somewhat cloudy since after the Lunar New Year. Since it's only one eye, it was difficult to detect at first, and I’m unsure when ...


Dr. Hu Yusheng Reply:
Hello: Your symptoms require further differentiation to determine if they are indeed related to retinal issues. The retina in the eye functions similarly to the film in a camera; however, the performance of a camera is influenced by more than just the quality of the film. I recom...

[Read More] Understanding Macular Degeneration: Causes and Concerns for Eye Health


Understanding Visual Field Tests: What You Need to Know

What is a visual field test? During my health check-up, the doctor mentioned that I have myopic retinal degeneration in my right eye, possibly glaucoma (although my eye pressure is normal). He recommended a visual field test. What is a visual field test, and does it require speci...


Dr. Chen Xuan Reply:
Due to Dr. Chen Hsuan's leave, the response is provided by Dr. Ke Mei-Lan, the head of the ophthalmology department: Visual field testing measures the range of vision while the eyes are focused on a specific point in the visual field. Our hospital is equipped with the latest...

[Read More] Understanding Visual Field Tests: What You Need to Know


Managing Uncontrolled Glaucoma: Treatment Options Beyond Medications

Glaucoma Hello Dr. Wang, I have consistently high intraocular pressure and have been diagnosed with glaucoma. My doctor has changed my medication 3 to 4 times, but my eye pressure remains uncontrolled. Some of the medications cause allergic reactions and headaches. If medicatio...


Dr. Wang Yuwei Reply:
If a single medication is insufficient to control glaucoma, a change in medication or combination therapy may be considered. If control is still not achieved, different types of laser treatments should be administered based on the specific diagnosis. If control remains elusive, s...

[Read More] Managing Uncontrolled Glaucoma: Treatment Options Beyond Medications


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