Glaucoma is a group of eye diseases in which optic nerve damage is caused due to increase in intraocular pressure inside the eye. This happens when there is an increase of fluid build-up in the front part of the eye.
In a healthy eye, aqueous humor (a clear fluid) continuously circulates in the front portion of the eye. Eye steadily produces a small amount of aqueous humor and simultaneously equal amount of fluid flows out of the eye. This helps to maintain a constant healthy eye pressure inside the eye. If aqueous humor does not flow accurately from the eye, it results in build-up pressure over time. This increase in pressure can damage the optic nerve fibers of the eye which further can lead to glaucoma.
Glaucoma can develop in one or both eyes and is the main cause of vision loss in people at the age of 60 and above. There are several types of glaucoma.
Types of glaucoma
- Open-angle glaucoma
- Closed-angle glaucoma
- Congenital glaucoma
- Secondary glaucoma
1. Open-angle glaucoma is the most common form of glaucoma that accounts for around 90% of all glaucoma cases.In open type, the drainage angle between the cornea and the iris remains open but the trabecular meshwork remains partially blocked. This clogging of the drainage canals of the eye results in an increase of intraocular pressure. It is also called as primary or chronic glaucoma.
2. Closed-angle glaucoma is caused when there is a closed or narrow- angle between the iris and the cornea. When the drainage angle gets completely blocked, it results in a sudden rise in intraocular pressure. It is also called as acute glaucoma or narrow-angle glaucoma.
3. Congenital glaucoma is a type of glaucoma that occurs in babies where there is an incomplete development of eye’s drainage canals. This is a rare condition which if not diagnosed and treated early can lead to blindness in infants and young children.
4. Secondary glaucoma is a type of glaucoma which is characterized by an identifiable cause of increased eye pressure that results in optic nerve damage and vision loss. This is referred as ‘secondary’ as it results from another eye condition or disease. For example, if a person has undergone any eye injury, then that person has more chances to develop secondary glaucoma. The most common examples of secondary glaucoma are pigmentary glaucoma, pseudoexfoliative glaucoma and neovascular glaucoma
Facilities at Rajan Eye care hospital
Rajan Eye Care Hospital is highly recommended for screening and treatment of glaucoma. For more details and appointments, visit us at www.rajaneyecare.comor contact us at: 98401 77177 / 2834 0300 / 500