Optometry 2019

Glaucoma : Visual Field Loss

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Open-Angle Glaucomais most common glaucoma, as the person ages drainage channels of the eye can become less efficient causing the pressure in the eye to gradually increase. This slow rise in pressure over time causes damage to the optic nerve and lead to vision loss. In some cases, as a person ages their optic nerve can become damaged at even normal eye pressures, this is called Normal Tension Glaucoma. No symptoms are seen until late in disease

Closed-Angle Glaucoma Closed-angle glaucoma is more common among people who are hyperopic or farsighted.  The iris layer of eye is closer to the drainage channels and can move forward and completely block the drains.  This leads to build up the fluid in the eye leading to increase eye pressure and damage to the optic nerve and vision loss.  The symptoms of an acute closed-angle glaucoma attack include: blurred vision, severe eye pain, headache, and nausea and vomiting. Laser treatment can both prevent and stop an acute closed-angle glaucoma attack