Vitrectomy approach is most commonly via –
**Core Concept**
The question is testing the understanding of the surgical approach for vitrectomy, a procedure used to remove the vitreous gel from the eye. The correct approach is crucial for minimizing complications and ensuring a successful outcome.
**Why the Correct Answer is Right**
The most common approach for vitrectomy is through a 3-port pars plana approach, where the surgeon makes three small incisions in the pars plana, a region between the iris and the choroid. This approach allows for the removal of the vitreous gel and any blood or debris that may be present. The surgeon uses specialized instruments to remove the vitreous gel through the incisions, and a gas or oil is often used to fill the space left by the removed gel to prevent the retina from detaching.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely incorrect because it does not specify the location of the incisions, which is a critical aspect of the vitrectomy approach.
**Option B:** This option may be incorrect because it does not mention the use of specialized instruments, which are essential for the procedure.
**Option C:** This option is likely incorrect because it does not specify the use of a gas or oil to fill the space left by the removed vitreous gel.
**Clinical Pearl / High-Yield Fact**
The 3-port pars plana approach is the most common approach for vitrectomy because it allows for minimal disturbance of the surrounding ocular structures, reducing the risk of complications.
**Correct Answer:** C. 3-port pars plana approach