**Core Concept**
Laser capsulotomy is a surgical procedure used to treat posterior capsular opacification (PCO), a common complication of cataract surgery. PCO occurs when the posterior capsule of the lens becomes cloudy, impairing vision.

**Why the Correct Answer is Right**
Laser capsulotomy involves the use of a neodymium yttrium-aluminum-garnet (Nd:YAG) laser to create a hole in the cloudy posterior capsule. This procedure allows light to pass through and improves vision. The Nd:YAG laser works by creating a photoacoustic effect, which disrupts the cloudy lens fibers and clears the blockage.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely incorrect because laser capsulotomy is not typically used to treat cataracts themselves, but rather the complications that arise after cataract surgery.

**Option B:** This option is incorrect because laser capsulotomy is not a treatment for glaucoma, which is a separate condition affecting the optic nerve.

**Option C:** This option is incorrect because laser capsulotomy is not a treatment for age-related macular degeneration (AMD), which affects the macula, the part of the retina responsible for central vision.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that posterior capsular opacification can occur months to years after cataract surgery, making follow-up examinations essential for early detection and treatment.

**Correct Answer:** C. Posterior capsular opacification.