Do you know about Posterior Subcapsular Cataracts? How is it caused?

Sat Jun 22 2019

What are Cataracts? When rays of light enter our eyes, they go through the lens located inside the eye. A normally functioning lens is transparent and bends the rays of light coming into our eyes, so they focus on the retina perfectly. The rays are then converted into nerve signals which are sent to the brain through the optic nerve, allowing us to experience perfect vision. A cataract refers to a clouding of the lens in our eye. Mostly caused by the natural process of ageing, cataracts can cause visual impairment by forming cloudy structures on the lens of the eye, which interferes with the refractive process of the lens. As the rays of light entering our eye do not bend properly, we experience visual impairments. Cataracts are common and curable in today’s world. Almost half the population over eighty is likely to experience some form of cataracts. Read Also: Cataract, Myths, Facts and TreatmentTypes of Cataracts Overall, there are three types of cataracts that are caused by old – nuclear sclerotic, cortical, and posterior subcapsular. A person may suffer from one type of cataracts or a combination of two or more types of cataracts as they age.

  • Nuclear sclerotic is considered as one of the most common forms of cataracts. It is a medical term for stating that the lens of the eye has become hardened over time. As the condition progresses, there may be perceived improvements for close-up vision, but it is not permanent. This type of cataract takes a long time to develop before it can start significantly affecting vision.
  • Cataracts which develop in the lens cortex of the eye are known as cortical cataracts. These are usually caused by changes in the water content of the eye’s lens fibres. These fibres cause the light entering our eye to scatter, which affects our vision.
  • Posterior Subcapsular cataracts are cataracts which develop behind the lens (posterior) of the eye. It is known as subcapsular as it forms under the lens capsule which is responsible for holding the eye in place and encloses the lens. Posterior Subcapsular cataracts often create halos and glare around lights.

Causes of Posterior Subcapsular Cataracts

Posterior subcapsular cataracts often tend to develop very quickly with its symptoms becoming noticeable within months. Even though the most common cause of cataracts is the natural ageing process, here are some other risk factors for posterior subcapsular cataracts:

  • People who have used steroids.
  • People who suffer from diabetes.
  • People who experience extreme nearsightedness.
  • People who suffer from retinitis pigmentosa.

Curable and Common! Even though cataracts may seem like a serious problem, it is surprisingly a very common and fortunately a very curable one too. Modern cataract surgery is highly advanced and can cure cataracts and restore any vision lost to the disease. To know more about cataract surgery, click

Article: About Posterior Subcapsular Cataracts and Causes, Types of Cataracts
Author: Dr Abhishek Goel   |   Jun 22 2019 | UPDATED 02:00 IST

*The views expressed here are solely those of the author in his private capacity and do not in any way represent the views of Centre for Sight.

Related Posts
Congenital Cataracts- An Overview
Wed Jan 11 2017
Early Symptoms of Cataract
Tue Aug 07 2018
Tips to Prevent Cataract?
Thu Jun 20 2019
ACT when it’s Cataract
Mon Oct 22 2018
Blade Free Cataract Surgery
Fri Jun 15 2018
Thu Jan 29 2015
Cataract Surgery Specialist
Wed Jan 11 2017
How UV Rays Affect Your Eyes?
Mon May 27 2019
Fri Jan 24 2014
Appointment Specialist Locate Us Call Us
"I chose Centre for Sight to get rid of my glasses. Their treatment is permanent, has no side effects and gave me the freedom to live to the fullest."
Select Contact Method
Delhi NCR
Rest of India
Find a Specialist
Locate Us
In Delhi / NCR