Ophthalmology questions with correct answers

Which bones make up the orbit? Correct Answer-1) Frontal 2) Zygomatic 3) Greater + Lesser Wing of Sphenoid 4) Maxilla 5) Lacrimal 6) Ethmoid 7) Palatine What is the cornea? Correct Answer-Clear structure that vaults over pupil/iris 0.5 mm thick in center Type I collagen fibers arranged REGULARLY, DEHYDRATED Avascular What is the sclera? Correct Answer-White, opaque wall of the eye. Continuous with cornea Type I collagen fibers arranged more IRREGULARLY, HYDRATED What is the anterior chamber? Correct Answer-Space between cornea and iris/pupil Filled with aqueous fluid (produced in ciliary body, located posterior to iris) What is the iris? Correct Answer-Pigmented, thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Contains sphincter and dilator muscles.