Cataracts

Definition

Cataracts are a clouding of the eye's natural lens, leading to decreased vision. They are often age-related and can significantly impair daily activities if untreated.

5 Must Know Facts For Your Next Test

1. Cataracts can be classified by their location in the lens: nuclear, cortical, and posterior subcapsular.
2. Common symptoms include blurred vision, glare sensitivity, and faded colors.
3. Risk factors include aging, diabetes, prolonged sunlight exposure, smoking, and steroid use.
4. Treatment typically involves surgical removal of the cloudy lens followed by implantation of an artificial intraocular lens (IOL).
5. Pharmacologic management may not reverse cataracts but can help manage symptoms or delay progression.

Review Questions

• What are the three main types of cataracts based on their location in the lens?
• List at least three common symptoms associated with cataracts.
• What is the standard treatment for advanced cataracts?

Related terms

Glaucoma: A group of eye conditions that damage the optic nerve, often associated with increased intraocular pressure.

Macular Degeneration: An age-related condition affecting the central part of the retina, leading to loss of central vision.

Intraocular Lens (IOL): An artificial lens implanted in place of a natural lens removed during cataract surgery.