## Core Concept
The question tests knowledge on methods of sterilization for surgical instruments, specifically for eye instruments. Sterilization of surgical instruments is critical to prevent infections. Various methods exist, including autoclaving, dry heat sterilization, ethylene oxide sterilization, and hydrogen peroxide plasma sterilization.

## Why the Correct Answer is Right
The correct answer, **C. Hydrogen peroxide plasma sterilization**, is a safe and effective method for sterilizing surgical eye instruments. This method uses low-temperature hydrogen peroxide gas plasma to sterilize heat-sensitive equipment. It is particularly suitable for delicate instruments like those used in eye surgeries, as it does not damage the instruments and effectively kills bacteria, viruses, and spores.

## Why Each Wrong Option is Incorrect
- **Option A:** Autoclaving involves high-pressure steam and is effective but may not be suitable for all types of eye instruments due to the high temperature and moisture, which can damage certain materials.
- **Option B:** Dry heat sterilization uses hot air to sterilize instruments. While it can be used for materials that cannot get wet, it requires higher temperatures and longer exposure times, which might not be ideal for delicate eye instruments.
- **Option D:** Ethylene oxide sterilization is a gas sterilization method that can be used for heat-sensitive materials. However, it requires a longer sterilization cycle and aeration time to remove residual gas, and there's a risk of toxicity.

## Clinical Pearl / High-Yield Fact
A key point to remember is that the choice of sterilization method depends on the type of material the instrument is made of and its intended use. For delicate and heat-sensitive surgical eye instruments, **hydrogen peroxide plasma sterilization** stands out as a safe and efficient method.

## Correct Answer: C. Hydrogen peroxide plasma sterilization