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Doctor insights on: Glaucoma Test

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If an optometrist does a glaucoma test, what tests does he/she perform?

If an optometrist does a glaucoma test, what tests does he/she perform?

Tests- glaucoma: Testing for glaucoma includes intraocular pressure, evaluating the optic nerve, peripheral vision testing, evaluating the retinal nerve fiber layer and evaluating all of these parameters for progression. ...Read more

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Dr. Robert Chang
1,018 doctors shared insights

Glaucoma (Definition)

Glaucoma refers to a group of eye conditions that lead to damage to the optic nerve, the nerve that carries visual information from the eye to the brain. In many cases, damage to the optic nerve is due to increased pressure in the eye, also known ...Read more


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How lonv will my pupils stay dilated after glaucoma test?

How lonv will my pupils stay dilated after glaucoma test?

Depends: Visual field testing doesn't require dilation. Oct can also be performed without dilation although in some patients the signal strength and accuracy of the measurements can improve with dilation. Optic nerve photography is also best performed dilated stereo photographs are preferable. Dilation can last fabout 2-10 hours depending on the drugs used and color of the iris. Blue is more sensitive. ...Read more

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Why does my eye doctor want to do more than one kind of glaucoma test?

Why does my eye doctor want to do more than one kind of glaucoma test?

Glaucoma testing: Common glaucoma tests include intraocular pressure measurement, pachymetry (corneal thickness), visual field test, and oct. Ask your glaucoma specialist what each test is used for. If any test is abnormal, you may need glucoma treatment to protect your eyesight. ...Read more

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In monitoring open angle glaucoma, if oct test results taken 1 yr. Apart are different, can it mean glaucoma isn't stable? No change in visual field.

In monitoring open angle glaucoma, if oct test results taken 1 yr. Apart are different, can it mean glaucoma isn't stable? No change in visual field.

Open angle glaucoma: By definition will diminish your retinal nerve fiber layer (rnfl) over time if not well controlled. Serial rnfl scans are highly sensitive and can detect small changes prior to a formal visual field test demonstrates changes. Questions if loss is occurring can be answered by looking at serial scans of the rnfl over time and looking for trends. So, yes, it may not be stable and requires follow up. ...Read more

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Should glaucoma eye pressure test be done before your eyes are dilated?

Usually: Before dilation, most eye doctors will evaluate the front part of your eye to see if you are at risk for angle closure, and check your eye pressure at that point. There are times, though, when we recheck pressure following dilation to see if it changes, and in a low risk patient (e.g. Not at risk for angle closure), it is not unreasonable to check after dilation. ...Read more

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Could glaucoma eye pressure test be done before eye dilation?

Yes: Intraocular pressure should always be measured prior to dilation as it typically increases a little after dilation, especially when monitoring for glaucoma. There are a few conditions where it may be checked after and eye doctors will typically recheck pressures after dilation to ensure accuracy of their technician, but as a rule, this should be documented prior to dilation. ...Read more

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What is the device that looks like a pencil used to test for glaucoma?

What is the device that looks like a pencil used to test for glaucoma?

Tonopen: The tonopen is a device that looks like a big pencil. It measures the pressure in the eye similar to standard applanation though not as accurate. ...Read more

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I got a test for glaucoma. They sent a card in the mail giving a time and reason is glaucoma consult existing. Does that mean I have it?

Possibly: Most likely is that one of the several tests used to discover glaucoma was suspicious for the condition. This does not mean you have it as there are a number of things that have to be present to make this diagnosis. Hopefully you are seeing an ophthalmologist skilled in handling such conditions rather than an optometrist. ...Read more

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