All are ocular features of Albinism except
**Core Concept**
Albinism is a congenital disorder characterized by the reduction or complete absence of melanin production, affecting not only skin and hair but also the eyes. The ocular manifestations of albinism result from the impaired development of the eyes due to the lack of melanin, which plays a crucial role in retinal and iris pigmentation.
**Why the Correct Answer is Right**
Albinism is associated with several ocular features, including:
* Nystagmus: Uncoordinated eye movements due to the impaired development of the retina and optic nerve.
* Photophobia: Sensitivity to light due to the reduced pigmentation of the iris, allowing more light to enter the eye.
* Strabismus: Misalignment of the eyes due to the impaired development of the extraocular muscles.
* Foveal hypoplasia: Underdevelopment of the fovea centralis, the part of the retina responsible for central vision.
**Why Each Wrong Option is Incorrect**
**Option A:** (assuming this is a valid option) Not provided, cannot evaluate.
**Option B:** Not provided, cannot evaluate.
**Option C:** Not provided, cannot evaluate.
**Clinical Pearl / High-Yield Fact**
A key feature of albinism is the presence of a "blue dot" or "blue macular" at the macula, which is a result of the reflection of light from the underlying choroid due to the lack of retinal pigment epithelium.
**Correct Answer: D.**