Modern intraocular lens are NOT made up of:
**Core Concept**
Modern intraocular lenses (IOLs) are made from various materials to suit different patient needs, including **polymethylmethacrylate (PMMA)**, **silicone**, and **foldable hydrophobic acrylic**. The choice of material depends on factors such as **biocompatibility**, **optical clarity**, and **implantation technique**.
**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss common IOL materials. **Hydrophobic acrylic** IOLs are popular due to their **foldable design**, allowing for smaller incisions. **Silicone** IOLs are also used, especially in cases where a **sulcus fixation** is required.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the option text, it's challenging to provide a specific reason.
**Option B:** Similarly, without the option text, a precise explanation cannot be given.
**Option C:** Again, the option text is missing, making it difficult to explain.
**Option D:** The same issue applies here.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **PMMA** IOLs are less commonly used today due to their **rigid design**, which requires a larger incision.
**Correct Answer:** D. Glass