Visual field

What is Visual field?

Visual field is the area which is seen by each eye and both eyes combined. Apart from the area being focussed , it also includes the area not in focus but within the scene. It is mapped by the help of perimetry. It can shrink in certain conditions pertaining to the retina and optic nerve.

Questions and answers on "Visual field"

Can an Optometrist conduct a "Visual Field Test" or does an Opthalmologist need to do this. If not an Optometrist, why not?

doctor1 MD

Brief Answer:
it can be done by an optometrist.

Detailed Answer:
Welcome to HealthcareMagic.com

A visual field is usually conducted by an optometrist. Conduction of the test requires the basic knowhow of the machine. Which is taught to the optometrist.

But, what kind of visual field test has to...

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Hi received mri report as normal following parathesia in left side fingers and feet new onset incontinence and left side blindness for less minute and after optical tests vision fine but left sided visual field loss. The neurologist in one hospital told me I could be having migraines and urine incontinence different problem. Which I found understand fable however the optician at the other hospital has contacted me and told me that although my mri came back as normal She has concerns Significant visual field loss and that I am not to drive and referring me to neurologist at that hospital I am very confused.

doctor1 MD

Brief Answer:
Contrast enhanced MRI needed.

Detailed Answer:
Hi, I had gone through your question and understand your concerns.
I read carefully your past conversations too.
In my opinion a contrast enhanced MRI of your brain is indispensable in this moment in order to be shure that there is or...

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1- Do I have brain cancer/tumor?
2- What would be the confirmatory diagnosis for IIH?
3- What would cause this to happen?
4- What would you recommend as next steps?

doctor1 MD

Brief Answer:
There is no brain tumor or cancer

Detailed Answer:
Hi XXXXXXX prasad1,
Thanks for writing in to us.

I have read through your query in detail.
Please find my observations below.

1. You do not have any brain tumor or cancer.

2. Going by the clinical features and MRI scan findings...

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Can I possibly use ginger tea to lower eye pressure? Recent reading showed 21 for both eyes, and I'm worried...

doctor1 MD

Brief Answer:
This requires glaucoma evaluation.

Detailed Answer:
Hello
Welcome to Health care Magic

I am Dr. Dadapeer K, an ophthalmologist and I answer health problems related to eye.

I reviewed your history.
Ginger is a rich source of antioxidants and is helpful for providing good eye health....

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i just came from the eye doctor..he says i have glaucoma..i am worried. looking at my disc there is some cupping right eye is at 5 and deep and left eye is at 3..i have been followed by a retina specialist and thought he would note any changes in my cup size but maybe he was not paying attention to it..my pressures have been high off and on for about 10 years..i was considered a glacoma suspect but this time he says he thinks i have damage to my eye...what future does that hold for me..it says it is in the beginning stage of glaucoma..since he thinks i have damage will it continue to cause damage..he wants to do the laser surgery on me..is that usually successful..will it cause more floaters ..i also have a starting of a cataract will it make it worse..i have had a lot of stress lately..does it cause this..my pulse rate is always high..would that cause it..once i have started the damage will it be hard to control future damage..should i have been using drops all along...thanks so much.. i do not want to lose my sight..

doctor1 MD

Brief Answer:
The glaucoma looks to be early stages and can be treated.

Detailed Answer:
Hello
Welcome to Health care magic

I am Dr. DADAPEER K, an Ophthalmologist and I will be answering your question.

I reviewed your history.

The history mentioned by you indicate presence of high intraocular pressure...

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My mother woke up this morning and said that things looked red. She used to see dots but said that the dots are gone and that half of everything looks red like it has blood on it. What is happening to her vision? She is 90 years old.

doctor1 MD

Brief Answer:
Read below.

Detailed Answer:
I read your question carefully and I understand your concern.

From your description it seems that the symptoms are on one half of the visual field, on both eyes. In this case the cause would be in the brain, not in the eye itself, as each half of the...

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I have wavy white lines in very top of my visual field. I also alternatively have "bubbling" white lights. None of these lights are like bolts of light or intense flashes. I only see them outside in bright light

doctor1 MD

Brief Answer:
The less common causes like opacities and after images need to be ruled out

Detailed Answer:
Hello
Welcome to Health care magic

I reviewed your history.
It seems from the history that you are having symptoms of seeing white lines in visual field.

The commonest cause for seeing...

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Pl let me know the cost of Computarised visual field test for both eyes? Pl let me know the cost of Computarised visual field test for both eyes?

doctor1 MD

The cost for computerised Visual field test in a private clinic in India would be around 500-750 Ruppes for one Eye and 1000-1500 Rupees for both Eyes.

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I have a vision problem in one eye. The Dr said I needed cataract surgery. The surgery went wellut the vision problem has not changed. I see half with that eye. By half, I mean if i look at a word or scene, I will see half, as though there is a vertical line and I see everything on one side of the line but not the other. I need to know what kind of specialist I should seek.

doctor1 MD

Brief Answer:
You need to consult neurophthalmologist or neurologist.

Detailed Answer:
Hello
Welcome to Health care Magic

I am Dr. DADAPEER K, an ophthalmologist and I will be answering your question.

I reviewed your history.
It seems from the history that you are having problem of seeing in one...

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How common is plaquenil toxicity and what does it do to your system? I understand that visual field tests are not required in Europe. I had unexpected results from one visual field and am now being followed by a Retinaologist and the tests being preformed are very expensive, and I believe unnecessary as the findings have always been normal. Are there other risks from long term plaquenil use? I have very mild RA and the plaquenil has kept symptoms in check. I have been off the drug two times and RA symptoms come on after about 3-4 weeks. I don't want to go to the next level of treatment as I am doing well on plaquenil and Celebrex. Thanks, XXXXXXX YYYY@YYYY

doctor1 MD

Brief Answer:
plaquenil toxicity

Detailed Answer:
My dear,
Thanks for sending your query to us.
These drugs do have a toxicity but it is rare.The reason doctors are worried is that once toxicity occures ,it continues even after stopping the drug.
Otherthan retinal examination,useful information...

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my right eye, after undergoing cataract operation, has been diagnosed to be affected with macular degeneration with visual field defect (scotoma). my left eye is affected with slight glucoma for which i am taking eye drop. my question is whether laser opertion on the right eye can restore my lost sight? And also, whether there is risk factor in undergoing any such operation? pl.answer. my email address is : YYYY@YYYY

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I am 42 year old male i got brain strok of right side of brain in last march result of strok i lost left peripheral vision lost of my booth eyes [hemianopsia] after six month i also got FITS now my vision condition is very poor i can't drive bike or walk without caretaker sir is hemianopsia is treatable iam in very trouble i

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Hello I have been doing some test with my eyes to personally see if I am losing vision from glaucoma. There have been some visual defects that I don’t know if it is natural (where there are more dots on a visual field test) or damage from glaucoma. One thing I do is draw a small black dot on the wall or paper and fix my eyes a certain way. If I place it right, the dot disappears. I have several of these in my peripheral vision (Not including the natural blind spot) and I only notice them when I am looking for it. I would say it is relatively small but would the visual field or Nerve Fiber Analysis be able to pick this up if it was damage from glaucoma (what would this damage be called)? Could this just be a normal thing everyone has in there peripheral (like seeing the many dots on a visual field but the eyes are perfectly fine for a normal eye)? What could this be if not one of them? My pressures in my eyes are stable.

doctor1 MD

9 years old male pt , came to paediatrics ER , stuper condition , no fever or vomiting or headach has bowel and urinery incontinence since 1 week has myoclonus since 3 months has auditory hallucination and loss memory since 3 months past history : one attack of seizure before 8 month there is history of head trauma since 2 years the first syptom was before 9 month was speech disorder then after 2 weeks pt develop gait ataxia . MRI normal LFT and RFT normal CBC and serum electrolyte normal chest x ray normal doctors in my poor country cannot reach diagnosis please help in examination : reactive dilated pupil pt is aphasic Bp 90 on 60 afebrile no jaundice no pallor no cyanosis there is visual field defect positive plantar reflex bilateral knee reflexes are abscence in both no neck rigidity , negative kerng sign

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