Angle Closure Glaucoma

Use Azopt Drops to Control Optic Fluid Pressure and Prevent Severe Glaucoma Damage

Online PR News – 25-May-2011 –When fluid flow within the eye gets disrupted, people are set to be affected by a medical condition called glaucoma, and it is highly recommended that under such circumstances, Canada drugs such as Azopt Drops 5 ml are used to lower high pressure in the eye.

Glaucoma is a result of many eye conditions which in time combine to damage the optic nerve. In serious cases, if glaucoma is not intended to, people can get blind. Light signals are focused on to the retina, which then converts light into electrical signals. These signals are then transferred to the optic nerve through a delicate system of fibers. The brain interprets the signals and converts it into images that we see.

If the eye pressure increases, one can experience glaucoma. A weak optic nerve can also be the cause. One must understand that eye pressure is not the same as blood pressure. The eyeball requires certain amount of pressure to be kept in shape. Both high and low eye pressure can be harmful. If it is too high, the optic nerve will get damaged. If it is too low, then the optic nerve will not receive enough blood supply. In this case, the damage will take longer.

Primary Open-Angle Glaucoma Is the Major Risk

Basically, there are four types of glaucoma; namely primary open-angle glaucoma (POAG) for chronic glaucoma, acute angle closure glaucoma, secondary glaucoma, and developmental glaucoma. Of these, POAG accounts for 70% of all glaucoma cases. Fluid in the eye does not drain properly in chronic glaucoma and pressure starts building up slowly.

A Canada pharmacy offers Azopt Drops 5 ml to lower the pressure which starts to build up. It is a carbonic anhydrase inhibitor which functions by decreasing the amount of fluid produced within the eye. Less fluid in the eye lowers the pressure.

Though there is no pain, one should look for loss in peripheral vision. Generally, it appears as a blind area just above or below the center of vision. The condition should not be left untreated, as blind areas will start spreading both inwards and outwards, leading first to tunnel vision and later on to total loss of vision.

Diabetes and old age will definitely be a problem when it concerns glaucoma. Around 5% of the people over the age of 65 already have POAG.

Management of angle-closure glaucoma (Mr Paul Foster) - Wholelottarob

03Jun2011 from 26Jun2010 1640hrs presented at the  COS Annual Meeting in Quebec City  by Mr Paul Foster  from Moorfields Eye Hospital (designation in the UK is such that Mr is the term for full consultant as opposed to Dr)

The diagnosis and management of ACG has been a relatively evidence free zone - “Small eye, big trouble.” 

Primary vs secondary angle closure

The first step is to figure out if primary or secondary ACG; therefore you have to perform gonioscopy. Another test to help differentiate between primary and secondary is the use of biometry. The biometry tends to be symmetrical in the primary angle closure. Secondary tends to be in normal or big eyes and more asymmetrical. There is a large list of secondary ACG - iatrogenic, uveitis, NVG and many more

Laser iridotomy treatment

Laser iridotomy is still standard management, at or near 12:00 between 50-200 ums (though some advocate temporal placement to minimize light streaks.) Dark irides harder to get through so consider initial argon then complete with a YAG [editorial note: but bear in mind that with argon use also comes increased risk of inflammation.]

Apraclonidine and oral agents are used as pre-treatment at Moorfields’ Eye Hospital. Argon pre-Tx in most Asians and Africans as a confluent rosette at 100 mW then raise energy to 750 mW to create crater. Complications include a white horizontal/dark vertical line and about 1% rate visual disturbances such as glare, as well as transient bleeding and blurring.

Looking at response to LPI in China by using UBM before and after and identified the following risks for LPI failure:

Role of laser iridoplasty

Laser iridoplasty is worth considering if still closed after LPI. It produces a fair amount of inflammation lasting for up to a couple of weeks. Basically avoid iridoplasty if established PAS but it can be done early on in acute ACG (a study in Hong Kong showed good response in first hour more so than medical treatment.)

What if LPI and/or iridoplasty not enough?

What med to use if LPI not enough? Prostaglandin Analogs seem to work very well. Trabeculectomy should NOT be done in acute case; study found too high a complication rate.

Angle Closure Glaucoma

Angle-closure glaucoma, a comprehensive review of primary and secondary angle-closure glaucoma

Angle closure glaucoma

Angle closure and angle closure glaucoma, reports and consensus statements of the 3rd Global AIGS Consensus Meeting on angle closure glaucoma

The Glaucoma Book, A Practical, Evidence-Based Approach to Patient Care