Visual field, Ophthalmology FAQ - Page 40

Share to:
Understanding Blurry Vision: Causes and Symptoms Explained

Eyes Hello, I have a slightly foggy vision when looking at things, especially white objects, similar to the static on a TV with no signal. It's hard to describe, but I can still see things relatively clearly. I have myopia and floaters. Could you please tell me what this sym...


Dr. Ke Meilan Reply:
Hello, it may be a vitreous floater that is obstructing the central visual field. It is best to perform a dilated eye exam again. Sincerely, Dr. Mei-Lan Ke, Ophthalmology Department.

[Read More] Understanding Blurry Vision: Causes and Symptoms Explained


Understanding Irregular Pupils: Causes and Treatment Options

The left eye has two irregularly shaped pupils? Dear Dr. Ke, My fiancée developed two irregularly shaped pupils in her left eye about three to four years ago. After examination, she was diagnosed with elevated intraocular pressure, deteriorating visual fields, and blurred vision...


Dr. Ke Meilan Reply:
Hello, When Mr. Small experiences elevated intraocular pressure leading to more severe optic nerve atrophy, the pupils tend to dilate. It is crucial to reduce the intraocular pressure to a safe range. If medication is insufficient to control it, surgical intervention should be ...

[Read More] Understanding Irregular Pupils: Causes and Treatment Options


Understanding Eye Pressure: Symptoms and Concerns About Glaucoma

Strange phenomenon Dear Doctor, hello! I have been experiencing a feeling of pressure in my left eye for the past 5 to 6 years (it seems to be getting worse). It feels swollen and strange. I previously visited an ophthalmologist, who mentioned that my "right eye" has el...


Dr. Wang Zhangji Reply:
Hello! Common causes of eye discomfort and pressure include ciliary muscle fatigue. Prolonged near work, such as using a computer, watching television, or reading, can increase the workload on the ciliary muscles. Regarding your mention of elevated intraocular pressure, it's...

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


Understanding Visual Fields: Key Questions About Eye Health and Function

Visual field Hello, Doctor: I would like to ask (1) what is the approximate visual field in degrees for a normal person with both eyes? (2) What is the approximate visual field in degrees for a single eye? Specifically, how many degrees can it see upward, downward, temporally, an...


Dr. Wang Yuwei Reply:
1. Each eye can achieve a visual field of approximately 90 degrees. 2. The nasal field is about 60 degrees, the temporal field is about 90 degrees, the superior field is about 50 degrees, and the inferior field is about 70 degrees. 3. Central scotoma. 4. Bitemporal hemianopia. 5....

[Read More] Understanding Visual Fields: Key Questions About Eye Health and Function


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


Understanding Vision Problems After Optic Nerve Damage from Brain Tumors

Optic nerve damage following a brain tumor? Hello, 1. Observations are as follows: 1. In 1989, optic nerve damage occurred due to a brain tumor. 2. After a visual function assessment, it was found that reading is possible at both distance and near. 3. When reading t...


Dr. Wang Zhangji Reply:
The damage you sustained in 2000 due to a brain tumor may involve more than just the optic nerve; there is a region in the brain responsible for object tracking that may also be affected. Another possibility is that the injury to the optic nerve has resulted in visual field defic...

[Read More] Understanding Vision Problems After Optic Nerve Damage from Brain Tumors


Impact of Low Light Conditions on Glaucoma Patients' Vision and Health

Patients with glaucoma who spend extended periods in poorly lit indoor environments may experience increased difficulty in visual function. Insufficient lighting can lead to eye strain, reduced contrast sensitivity, and may exacerbate symptoms such as blurred vision or tunnel vis...


Dr. Wang Yuwei Reply:
Dear Ms. Jan, Glaucoma is classified into two types: angle-closure glaucoma and open-angle glaucoma. If it is angle-closure glaucoma, working in a dark room for an extended period may trigger an acute glaucoma attack. On the other hand, open-angle glaucoma poses less immediate d...

[Read More] Impact of Low Light Conditions on Glaucoma Patients' Vision and Health


Understanding Eyelid Ptosis: Definition, Effects, and Treatment Options

How to determine? How is ptosis defined? What are the effects of ptosis? Are there treatment options available?


Dr. Huang Bozhen Reply:
The normal upper eyelid covers the upper margin of the cornea by 2 millimeters. When the coverage exceeds 2 millimeters, it is referred to as ptosis. Severe ptosis can lead to upper visual field loss, increased risk of conjunctivitis, significant forehead wrinkles, fatigue around...

[Read More] Understanding Eyelid Ptosis: Definition, Effects, and Treatment Options


Can Stem Cells Be the Key to Treating Glaucoma?

Are stem cells the salvation for glaucoma? Dear Dr. Huang, I am a 24-year-old who was diagnosed with glaucoma in both eyes four years ago. My left eye has only about 5% of its visual field remaining. As for my right eye, the doctor mentioned that my optic nerve appears to be sig...


Dr. Huang Bozhen Reply:
Stem cells are currently used in the conjunctiva and cornea, but they are not related to glaucoma or the optic nerve. You have already undergone three surgeries, and I truly don't know what further recommendations to provide you.

[Read More] Can Stem Cells Be the Key to Treating Glaucoma?


Understanding Astigmatism and Glaucoma in Children

Astigmatism and glaucoma? Hello Doctor: My daughter is eleven years old and has astigmatism in both eyes, approximately 150 degrees. She feels discomfort and glare when looking at slightly bright objects. Interestingly, her condition seems to improve when she is not wearing her g...


Dr. Huang Bozhen Reply:
Subject: Photophobia. Explanation: Your daughter is experiencing symptoms of photophobia, and it is important to check for any signs of inflammation, such as conjunctivitis or keratitis. This should not be related to astigmatism. Additionally, glaucoma is caused by elevated intra...

[Read More] Understanding Astigmatism and Glaucoma in Children


Previous|Page