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Good Day,

Kindly provide information about, How to assess Glucoma,How many types of glucoma are there? and How to assess glucoma type?

And possible medications.

regards,

AAI

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Hello there, your question is pretty vague as glaucoma is a huge subject in Optometry. I will try my best to answer your questions but I may miss out some points as I don't have time to write 10,000 words.

How to assess for glaucoma?
-Intraocular pressure measurements via non-contact tonometry (puff of air) or contact tonometry (your cornea is anestatised for this)
-Visual field check - glaucoma can cause damage to the Optic Nerve Head at the back of the eye and as the pressure begins to cause damage to the ONH there is a characteristic sequence of visual field loss. You have to hope here that you catch it early before too much vision is lost - especially your central vision.
-Ophthalmoscopy (Indirect or direct) - Changes at the optic disc can be seen here
-Measuring the RNFL thickness - Zeiss have some fancy machines available for sale which calculate the thickness of the retina. by comparing this to normals a glaucomotous patient can be identified.
-Assessment of the anterior chamber angle (van Hericks or gonioscopy) - this is mainly for ensuring that closed angle glaucoma isn't an issue for a patient. If this angle is narrow then a patient may suffer an episode of closed angle glaucoma when their eye pressure spikes or if their pupils are dilated with drugs. If a patient actually has this they will be in agony - the pain has been described as being similar to that of a gun shot wound.

Types?

I'll be vague here and say three:

Open Angle Glaucoma - slow progressive loss of vision normally with associated high eye pressure (although some patients sometimes have normal measurements)

Closed Angle Glaucoma - see above

Congenital Glaucoma - Usually seen at birth. Also known as buphophthalmous this can make the kids eyes look like cow eyes (extremely bulgy appearance)
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