Treatment of choice in aphakia:
**Core Concept**
Aphakia refers to the absence of the crystalline lens in the eye, often resulting from cataract surgery. The treatment of choice in aphakia involves correcting the resulting refractive error through the use of corrective lenses, as the eye is no longer able to focus light properly due to the absence of the lens.
**Why the Correct Answer is Right**
The treatment of choice in aphakia is the use of high plus power glasses or contact lenses to correct the resulting hypermetropia (farsightedness). This is because the eye's ability to focus light is impaired due to the absence of the lens, and corrective lenses are needed to compensate for this defect. In the past, aphakic glasses were often prescribed with a plus power of 10-14 diopters to correct the hypermetropia.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because aphakic glasses are not the only treatment option, but rather the most common and effective one.
**Option B:** This option is incorrect because intraocular lenses (IOLs) are a more modern and preferred treatment option for aphakia, but they are not the treatment of choice.
**Option C:** This option is incorrect because contact lenses are a viable treatment option, but they are not the most widely used or recommended treatment for aphakia.
**Clinical Pearl / High-Yield Fact**
Aphakic glasses are often prescribed with a plus power of 10-14 diopters to correct the resulting hypermetropia, but the exact power required can vary depending on the individual's specific needs and the type of aphakia present.
**Correct Answer: C. Contact lenses.**