**Core Concept**
Aphakia is a condition where the lens of the eye is removed or absent. The ideal rehabilitation for aphakia aims to restore clear vision by replacing the missing lens with an artificial one. This involves the use of intraocular lenses (IOLs) or contact lenses.

**Why the Correct Answer is Right**
The correct answer involves the use of intraocular lenses (IOLs), which are implanted directly into the eye to replace the natural lens. This is the most ideal rehabilitation option for aphakia as it provides clear vision with minimal disruption to the eye's natural anatomy. IOLs work by refracting light properly, allowing the retina to receive focused images.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not specify a type of lens replacement, making it a vague choice.
* **Option B:** This option is incorrect as it does not address the need for a permanent lens replacement in aphakia.
* **Option C:** This option is incorrect as it implies the use of spectacles or contact lenses alone, which are not sufficient for correcting aphakia.

**Clinical Pearl / High-Yield Fact**
Intraocular lenses (IOLs) are the gold standard for aphakia rehabilitation, providing clear vision with minimal disruption to the eye's natural anatomy. When choosing an IOL, the surgeon must consider factors such as lens material, power, and design to ensure optimal visual outcomes.

**Correct Answer:** C. Intraocular lens implantation.