Endophthalmitis involves inflammation of all of the following, Except –
**Question:** Endophthalmitis involves inflammation of all of the following, Except –
A. Vitreous
B. Cornea
C. Sclera
D. Choroid
**Core Concept:** Endophthalmitis is an inflammation of the eye that affects the internal structures, including the vitreous, cornea, and choroid. The term "endophthalmitis" signifies that the inflammation involves the interior compartments of the eye.
**Why the Correct Answer is Right:** The correct answer, "C. Sclera," is right because the sclera is the white part of the eye and is the outermost layer, not an internal structure. In endophthalmitis, inflammation occurs in deeper layers, including the vitreous, cornea, and choroid.
**Why Each Wrong Option is Incorrect:**
A. Vitreous: The vitreous is a gel-like substance in the middle of the eye and is part of the internal structures affected in endophthalmitis. This option is incorrect.
B. Cornea: The cornea is the transparent outer layer covering the front portion of the eye and is not an internal structure. Inflammation in the cornea is typically classified as keratitis, not endophthalmitis. This option is incorrect.
D. Choroid: The choroid is the layer containing blood vessels beneath the retina and is an internal structure. Inflammation of the choroid is classified as choroiditis, not endophthalmitis. This option is incorrect.
**Clinical Pearl:** Endophthalmitis is a critical condition that requires immediate medical attention, as it can rapidly lead to severe vision loss and potential blindness. Early diagnosis and treatment are crucial for preserving ocular health.
**Correct Answer:** **D. Choroid**
**Explanation:** As explained above, endophthalmitis typically involves internal eye structures, such as the vitreous, cornea, and choroid. The choroid is an internal structure of the eye that contains blood vessels and is part of the retina. Inflammation of the choroid is classified as choroiditis, not endophthalmitis. Therefore, option D is the correct answer, indicating that the choroid is the structure not involved in endophthalmitis.