Ophthalmology – Set 1 – Anatomy. Development & Clinical Examination
1. Anteroposterior stability of eyeball is provided by all except
a) Suspensory ligament of the eye ball
b) Superior oblique
c) Superior rectus
d) Orbital fat
2. The length of the eye ball is
a) 12mm
b)16mm
c) 20mm
d)24mm
3. The following ocular structure is not derived from surface ectoderm
a) Crystalline lens
b) Sclera
c) Corneal epithelium
d) Epithelium of lacrimal glands
4. Surface ectoderm gives rise to all of the following structures except
a) Lens
b) Corneal epithelium
c) Conjunctival epithelium
d) Anterior layers of iris
5. Smooth muscle of the IRIS is developed from
a) Surface Ectoderm
b) Mesoderm
c) Neural Crest
d) Neural Ectoderm
6. Cornela endothelium is embryologically derived from
a) Neural crest
b) Ectoderm
c) Mesoderm
d)Endoderm
7. Retinal blood vessels are developed from
a) Surface ectoderm
b) Paraxial mesoderm
c) Endoderm
d) Neuro ectoderm
8. Coloboma, most common site
a) Superotemporal
b) Inferonasal
c) Inferotemporal
d) Superonasal
9. Which continues to grow in the Iifetime-(fera/a 03)
a) Cornea
b)Iris
c) Lens
d) Retina
10. Axial length of eye ball at birth is_______ % of adult eye
a) 100
b) 90
c) 70
d)40
