## **Core Concept**
Neovascularization of the iris refers to the growth of new blood vessels on the surface of the iris, often associated with conditions like diabetic retinopathy, ischemic retinal diseases, or uveitis. This process involves angiogenesis, where new vessels form from pre-existing ones.

## **Why the Correct Answer is Right**
The correct answer, , typically represents a characteristic that is not commonly associated with neovascularization of the iris. Neovascularization of the iris (NVI) usually presents with features such as:
- **Rubeosis iridis**: The growth of new blood vessels on the iris surface.
- Increased intraocular pressure due to neovascular glaucoma.
- Hyphema or recurrent uveitis in some cases.

## **Why Each Wrong Option is Incorrect**
- **Option A:** If option A describes a known feature of NVI, such as rubeosis iridis or neovascular glaucoma, then it would be incorrect as a "not characteristic" option.
- **Option B:** Similarly, if option B aligns with common presentations or complications of NVI, it would not be the correct answer to the question.
- **Option C:** If option C is indeed a characteristic of NVI, then it does not fit as the correct answer to the question.

## **Clinical Pearl / High-Yield Fact**
A key clinical correlation to remember is that neovascularization of the iris often signals severe ocular ischemia or significant diabetic eye disease. Early detection can help prevent complications like neovascular glaucoma.

## **Correct Answer: D.**