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Doctor insights on: Phoria

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Could you tell me what a vision test is that measures the far lateral phoria?

Could you tell me what a vision test is that measures the far lateral phoria?

Cross cover test: There are a series of 2 tests - the cross cover test and cover/uncover test that is used to determine the type and amount of ocular misalignment. Far lateral phoria is common and is not important. If you think you may have an ocular misalignment, then see a strabismis specialist ophthalmologist. Most major cities will have this type of ophthalmologist. ...Read more

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Bifoveal fixation and vergence-phoria, what to do?

Bifoveal fixation and vergence-phoria, what to do?

Is this a problem?: Bifoveal fixation is the normal state of binocular vision. Phoria is a tendency of the eye to misalign when looking closely at objects. Bifoveal fixation should be enjoyed and vergence phoria is usually compensated well by the eye system. ...Read more

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Please help! what is the difference between tropia and phoria?

The difference: Is that a tropia is always present but a phoria is present some of the time. ...Read more

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What are some drugs that can cause hallucinations?

What are some drugs that can cause hallucinations?

Many: Recreational drugs such as lsd, ecstasy, psilocybin, mescaline, marijuana, and ketamine are some. Also many prescription medications can do this as well: antimuscarinic agents; levodopa; donapezil; antidepressants including ssri's and occasionally bupropion; opiates; proton pump inhibitors; steroids; quinolone antibiotics such as cipro, etc. Hallucinations happen in alcohol & drug withdrawal too. ...Read more

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Towards the end of the day, i'll have my contacts in and i'll start seeing double. Why does this happen?

Towards the end of the day, i'll have my contacts in and i'll start seeing double. Why does this happen?

Fatigue: We call it decompensation of a underlying phoria when weak or tired. Thus eyes don't fuse on an image well. Medications can cause it. If related to near work, could be a convergence insufficiency. Also tear film problems like dry eye can disrupt vision. ...Read more

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When I wake up during night, I sometimes have double vision for a little while. Is this normal?

When I wake up during night, I sometimes have double vision for a little while. Is this normal?

It certainly can be: A lot of people have a "phoria": the inability to keep the 2 eyes looking together when they are tired. This is quite common, and usually lasts for only a few moments. Phorias do not need to be treated. If you experience double vision at random times of the day or the double vision does not go away, you should see an eye doctor. You may want to see one anyway if only to reassure you. ...Read more

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Is it normal to have double vision while writing or reading or watching tv for long in dark?

Is it normal to have double vision while writing or reading or watching tv for long in dark?

It can be.: Many people will have some degree of misalignment between their two eyes when fatigued. This is called a phoria. It is normal. Patients will experience double vision temporarily, but should easily be able to eliminate the double vision by "refocusing". Double vision that does not go away or happens frequently is abnormal and should be evaluated by an eye doctor. ...Read more

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When i lay down and watch tv or use my ipod for a while, i start to see the words double like if i had diplopia. Vertically, i see 2 of the same words?

Double vision: Some people confuse double vision and blurred vision. Double vision is seeing two distinct, separate images of the same thing. Most double vision is due to misalignment of the eyes. Double vision with fatigue is common in people who have a tendency for misalignment - called a phoria. If it occurs frequent, a correction in glasses called prism can done to reduce or eliminate it. ...Read more

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What does it mean if you start getting double vision when you're intoxicated?

What does it mean if you start getting double vision when you're intoxicated?

Loss of control: There is a condition called a phoria, which occurs when people who have otherwise straight eyes get tired or have decreased consciousness (or get drunk). The eyes "cross" temporarily but can be forced to straighten with effort. There is no danger, but it is a definite sign that you are intoxicated. ...Read more

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I find myself difficult to focus(I can keep eyes focused but I need willpower to do it) ,major problem is that eyes goes blurry when is relaxed, help?

I find myself difficult to focus(I can keep eyes focused but I need willpower to do it) ,major problem is that eyes goes blurry when is relaxed, help?

Anxiety disorder: is state of tension, apprehension, worry, uneasiness or fear. It may be related to anticipated danger or arise for no apparent reason. While mild episodes of anxiety are common and do not usually require treatment, more severe forms can be chronic and debilitating. Hope it helps. ...Read more

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