Glaucoma is a condition that causes blindness due to nerve cells in the eye becoming damaged. This is caused by excessively high pressure within the eyeball. As people age, the drainage of fluid in the eye can become less effective, causing this pressure to increase. This elevated pressure damages the retinal cells at the back of the eye, which can eventually lead to loss of vision.
Researchers have discovered that high pressure in the eye causes a disruption in a key cellular clearance process known as autophagy. This process helps cells to clear away and replace damaged components, such as the power plants (mitochondria). In glaucoma, this clearance process becomes less effective, eventually leading to cell death.
New research shows that restoring this cleanup process with a specific substance, which inhibits the action of a particular cell regulator, can reduce damage to the retinal cells. As a result, the cells continue to function better despite the high pressure in the eye. This offers hope for more effective treatments against glaucoma in the future.
This discovery is important because it offers a new way to better understand and tackle eye diseases caused by ageing. By improving cell health, the likelihood of blindness from glaucoma can potentially be reduced, contributing to healthier ageing.
Source: Reason
