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What Is The Main Cause Of Glaucoma?

Once the optic nerve is injured, glaucoma might begin to develop. Glaucoma is usually brought on by the eye’s inability to keep a healthy balance between the volume of internal fluid it generates and the quantity that drops away.




Glaucoma is usually brought on by the eye’s inability to keep a healthy balance between the volume of internal fluid it generates and the quantity that drops away.

January is National Glaucoma Awareness Month, an important time to spread the word about this sight-stealing disease. Eyesight is often taken for granted, and living without it can be a challenge. Over three million Americans and over 60 million people worldwide have glaucoma, which is often referred to as “the sneak thief of sight” because there are often no symptoms of its presence.

National Glaucoma Awareness Month

The root causes of this unbalance generally have a connection to the kind of glaucoma you suffer.

Similar to how a ball or football needs air pressure to keep its shape, the eyeball requires internal fluid pressure to preserve its globe-like shape and vision.

However, eye pressure can grow to dangerously high levels, leading to glaucoma, when something interferes with the internal eye components’ capability to control intraocular pressure (IOP).

The eye cannot create a leak and “deflate” when pressure is excessively high, unlike a ball or balloon, which can. Rather, high eye pressure just keeps increasing and pressing against the visual cortex until the nerve fibres are irreversibly injured, and vision is destroyed. View glaucoma through the eyes of a patient to have a better understanding of the condition.

  1. Eye Anatomy And Glaucoma

Eye Anatomy

Neuronal damage carried on by the development of glaucoma eventually results in eye impairment, including loss of field of vision. However, as connectivity is broken, it seems that eye damage starts in the brain first.

According to experts at Nashville’s Vanderbilt Eye Institute (VEI), this early 2010 finding is a significant advance that may facilitate better diagnosis and treatment of eye diseases.

According to VEI research director David Calkins, PhD, “if you study the illness long enough, ultimately the optic nerve, then the eye, show evidence of degeneration.” “Degeneration proceeds in the opposite order as a result. It originates in the brain and travels all the way to the retina again.”

  1. Damage To The Optic Nerve And Poor Blood Flow Are Additional Glaucoma Causes.

Optic Nerve

While glaucoma is frequently related to high IOP, it can also develop when internal ocular pressure is normal (normal-tension glaucoma). Extremely pressure-sensitive optic nerves in individuals with this disease are susceptible to permanent damage from what would normally be considered “normal” IOP.

On the other hand, some persons with hypertension, or high intraocular pressure, may never suffer from glaucoma.

The majority of traditional glaucoma screening techniques include examining eyes for elevated IOP values. Direct observation of the optic nerve and field of vision testing, however, is essential in determining (or excluding) the diagnosis of glaucoma because the disease can still manifest itself even in the absence of excessive IOP.

Even though the specific origin of regular glaucoma is unclear, many experts believe that decreased flow of blood to the optic nerve could be a factor contributing. A narrowing or constriction of the vessels that supply the optic nerve may be the cause of this (vasospasms).

Additionally, based on some research, scotomas—blind patches that form in the field of vision and are comparable to glaucoma—are connected to inadequate blood flow within the eye.

According to an interesting study published in August 2007, glaucoma and Alzheimer’s disease, which results in brain abnormalities and corresponding memory problems, may share the same cause.

According to the study’s findings from the UK, beta-amyloid particle buildup in the retina of the eye and brain tissue may be related to the beginning of glaucoma and Alzheimer’s disease.

However, an unusual buildup of beta-amyloid particles does not always indicate that a person has glaucoma or Alzheimer’s disease. According to research, there may be significant tissue similarities between the brain and the eye that aid in understanding how beta-amyloid protein accumulation can have an impact on both the brain and the eye.

Treatments for glaucoma are increasingly being researched for their capacity to safeguard the nerve fibres in the eye from injury.

  1. What Signs Or Symptoms Exist For Glaucoma?

Signs Of Glaucoma

The early indications of glaucoma are a topic of interest to the general public. The difficulty is that some forms of glaucoma don’t have any early warning signs, and alterations to vision might relatively slow the process, making it simple to overlook symptoms. It’s crucial to get regular eye exams to find open-angle glaucoma early on because many patients don’t show any visible symptoms. Due to the permanent nature of glaucoma damage, early diagnosis and treatment are essential to preventing blindness.

More severe signs and symptoms, which often develop quickly, are more common with closed-angle glaucoma.

It’s possible to come across any type of:

  • Eye pressure or pain
  • Bright halo rings with rainbow colours.
  • Blind spots, tunnel vision, low vision, or blurring of vision.
  • Puking and feeling sick.
  • Red eyes.

Call your doctor if you recognize any new signs of glaucoma or other eye problems or if any existing ones create new problems.

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