What are the four types of cataracts?
What are the four types of cataracts?
There are four types of cataract: Nuclear Sclerotic, Cortical, Posterior Subcapsular and Congenital. The types of cataracts are classified based on where and how they develop in the eye. Nuclear Sclerotic Cataract: A nuclear sclerotic cataract refers to the hardening of the nucleus, the center, of the lens of the eye.
What causes posterior cataract?
Posterior subcapsular cataracts are associated with aging, steroids, trauma, ionizing radiation, intraocular inflammation, diabetes, high myopia, retinitis pigmentosa, Refsum’s disease, and atopic dermatitis.
What is the treatment of black cataract?
With a diagnosis of Black Cataract, the preferred surgical procedure may be a planned Extracapsular Cataract Extraction. In certain centers, with advanced Laser technology, laser cracking of the lens would be advised prior to phacoemulsification.
Can cataract be cured?
Surgery is the only way to get rid of a cataract, but you may not need to get surgery right away. Home treatment. Early on, you may be able to make small changes to manage your cataracts.
Is black cataract curable?
There is no natural cure for cataracts. According to the Mayo Clinic, no studies have proved how to prevent cataracts or slow their progression. But some healthy lifestyle practices that may be helpful include: Have regular eye examinations.
Where are the Cataracts of the Nile River located?
Unsourced material may be challenged and removed. The Cataracts of the Nile are shallow lengths (or whitewater rapids) of the Nile River, between Khartoum and Aswan, where the surface of the water is broken by many small boulders and stones jutting out of the river bed, as well as many rocky islets.
Is the Cataract a risk factor for NAION?
The link between cataract extraction as a potential contributor to nonarteritic anterior ischemic optic neuropathy (NAION) was first identified in 1951, and subsequent assessments of the temporal association have strongly supported that relationship.
What kind of cataracts can cause nearsightedness?
Cataract types include: Cataracts affecting the center of the lens (nuclear cataracts). A nuclear cataract may at first cause more nearsightedness or even a temporary improvement in your reading vision. Cataracts that affect the edges of the lens (cortical cataracts).
How does a cataract affect the center of the lens?
Cataracts affecting the center of the lens (nuclear cataracts). A nuclear cataract may at first cause more nearsightedness or even a temporary improvement in your reading vision. But with time, the lens gradually turns more densely yellow and further clouds your vision. As the cataract slowly progresses, the lens may even turn brown.