In Marfan’s syndrome which of the following will be seen in the eyes:
**Core Concept**
Marfan's syndrome is a genetic disorder caused by mutations in the FBN1 gene, leading to the disruption of fibrillin-1 production. This affects the extracellular matrix of connective tissue, resulting in various systemic manifestations. Ocular involvement is common in Marfan's syndrome.
**Why the Correct Answer is Right**
The characteristic ocular feature of Marfan's syndrome is the presence of **ectopia lentis**, where the lens is displaced from its normal position due to the weakening of the zonular fibers. This occurs because the fibrillin-1 deficiency affects the production of microfibrils, which are essential for the integrity of the lens capsule and the zonular fibers. As a result, the lens becomes dislocated, often upward and outward. Ectopia lentis is a hallmark sign of Marfan's syndrome and can be detected on slit-lamp examination.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the ocular manifestations of Marfan's syndrome. While cataracts can occur in various conditions, they are not a characteristic feature of Marfan's syndrome.
**Option B:** Retinal detachment is a possible complication of various ocular conditions, including Marfan's syndrome. However, it is not a specific or characteristic feature of Marfan's syndrome.
**Option C:** Glaucoma can occur in Marfan's syndrome due to the ectopia lentis, which can lead to angle closure. However, it is not a direct or characteristic feature of the syndrome.
**Clinical Pearl / High-Yield Fact**
In patients with Marfan's syndrome, a family history of ectopia lentis or other systemic features of the syndrome is crucial for diagnosis. A thorough ocular examination, including slit-lamp examination, is essential for detecting ectopia lentis.
**Correct Answer: C. Ectopia lentis.**