**Question:** Best method of detection of retained glass intraocular foreign body is

A. Optical Coherence Tomography (OCT)
B. Fundoscopy
C. Ultrasonography
D. Retinal Detachment Examination

**Correct Answer: B. Fundoscopy**

**Core Concept:**
The detection of retained intraocular foreign bodies (IOFB) is crucial for appropriate management, as these can lead to severe ocular complications. In this context, fundoscopy plays an essential role in evaluating the eye for foreign bodies.

**Why the Correct Answer is Right:**
B. Fundoscopy is the right choice for detecting retained glass IOFB because of the following reasons:
- Fundoscopy allows direct visualization of the fundus, which is the posterior part of the eye that includes the retina, optic nerve, and choroid.
- A retained glass IOFB may cause inflammation, hemorrhage, or inflammation-related edema, which can be observed during fundoscopy.
- Fundoscopy is a non-invasive procedure that can be performed without significant discomfort or risk to the patient.

**Why Each Wrong Option is Incorrect:**
A. Optical Coherence Tomography (OCT): Although OCT is a valuable imaging modality in ophthalmology, it is less suitable for detecting IOFB as it provides cross-sectional images of the retina and optic nerve but does not visualize the posterior segment as directly as fundoscopy.
C. Ultrasonography: Ultrasonography primarily assesses the anterior segment of the eye, which is not as effective as fundoscopy for detecting IOFB in the posterior segment.
D. Retinal Detachment Examination: This method primarily focuses on assessing retinal detachment rather than specifically detecting IOFB.

**Clinical Pearl:**
A thorough history, physical examination, and appropriate imaging modalities are essential for detecting and managing IOFBs. Fundoscopy is a simple, non-invasive method for initial assessment, while OCT and ultrasonography are more specific for evaluating the retina and choroid. Retinal detachment examination focuses on assessing retinal detachment, not specifically detecting IOFB.

In conclusion, fundoscopy is the appropriate method for detecting retained glass IOFB as it directly visualizes the posterior segment of the eye, which is crucial for early identification and management of the complication.