Glaucoma is one of the common eye disorders.It could happen to adults and even to infants. The Glaucoma Research Foundation said that it is a brain disease that can happen to anyone.Stein,Slatt and Stein wrote that is characterized by rising pressure inside the eyeball due to the fluids of the aqueous humor.It is called intraocular pressure.This causes severe damage to the optic nerve, according to about-vision.com. Eventually, it causes blindness.The about-vision.com said that, actually, it comes second to cataract as cause of blindness worldwide. The blindness caused by the cataract occurs in 43 % while those due to glaucoma is 15 %.
Stein, Slatt and Stein said that primary closure glaucoma occurs in 30% of those with the glaucoma.They have obstruction at the angle located at the root of the iris brought about by the increased length of the lens.The onset is abrupt.It can be triggered by sudden dilation of the pupils like in dark adaptation in the movie house, fear,or emotional arousal. The eyesight is rapidly loss. Eye is very painful and red. The pupil does not usually respond to light,and is often dilated.Treatment is by laser or surgical iridectomy.Medications are used only as palliative prior to surgery.
Primary open-angle glaucoma commonly occurs in the middle life and develops slowly. It occurs in both eyes.Progressive narrowing of the trabecular meshwork occurs and thus, the aqueous fluid can’t flow and can’t leave the eye. Symptoms occur only when the disease is already severe. It tends to run in families,according to medline. The website on Glaucoma Research Foundation said that trabeculectomy can be done, but most of the time, eye drops like the alpha-agonist, betablockers, carbonic anhydrase inhibitora and cholinergics can help.
Glaucoma among children is rare, according to Stein, Slatt and Stein . The child is extremely sensitive to light and often teary-eyed.Eyes are bulging and appear hazy, thus, called buphthalmos.The Glaucoma Research Foundation tells us that oral medications and eye drops can help. Surgery can also be done to create canal. Laser light surgery will form small opening in the eye also for the drainage.
List of Sources:
Stein HA, Slatt BJ, Stein RM.A Primer in Ophthalmology.Mosby Yearbook,1992. Missouri.