Glaucoma is one of the leading causes of irreversible blindness that usually causes no symptoms and can only be diagnosed by regular eye examinations. In this condition, intraocular pressure within the eye increases when either too much eye fluid is produced or the drainage channels, trabecular meshwork, are blocked.
Glaucoma is a group of eye diseases and there are several types–the most common types are:
- Primary Open-Angle Glaucoma
- Angle-Closure Glaucoma
Open-Angle Glaucoma symptoms
Glaucoma is also known as ‘the sneak thief of sight’because it has no symptoms until it has done irreversible damage to the eye. With no early signs, this type of Glaucoma develops very slowly and without any noticeable affects.
People with Open-Angle Glaucoma (OAG) do not notice any change in their vision. The vision loss in the initial stages of OAG occurs at the edges and is known as peripheral vision loss. This disease is so unpredictable that, until it becomes severe, it doesn’t even affect the quality or sharpness of the vision. The patient will only become aware of anyvision loss just as the disease is becoming severe and vision loss cannot be treated with either medication or surgery.
Acute Angle-Closure Glaucoma symptoms
Acute Angle Closure Glaucoma is also known as ‘Narrow Angle’ Glaucoma. In this state, the angle is closed in most of the areas that causes pressure in eyes.It ends up damaging the optic nerve leading to vision loss.To some extent, it develops slowly but the eye pressure may rise suddenly at some point, known as an acute attack of Angle-Closure Glaucoma.
In the early stages, the angles are closed but intraocular pressure may not rise which means that the optic nerve is protected from damage, at least temporarily.The symptoms of this type of Glaucoma are very noticeable and damage can also occur very quickly.
For people diagnosed with Glaucoma, it’s important to set a schedule of eye examinations with the eye specialist. Initially, patientswill be prescribed with medicines to maintain safe eye pressure.
The most common and noticeable symptoms of Acute Angle-Closure Glaucoma are:
- Vision starts to become blurred, and people with AcuteAngle-Closure Glaucoma are generally diagnosed after having this symptom
- People start to see rainbow coloured circles around bright lights
- Pain is a common symptom with Acute Angle-Closure Glaucoma, people may experience severe pain in the eyes, as well as headaches
- When it becomes verysevere, people with Acute Angle-Closure Glaucoma may experience sudden vision loss
What is Glaucoma and how can someonerecognise the symptoms? Check out this article for more information.
This article is provided by Moorfields Eye Doctor Abu Dhabi.