Anterior segment - ocular surface
Sclera
- Fibrous coat of eyeball
- Relatively avascular
- Almost acellular apart from a few fibroblasts
- 70% water
- Thickest posteriorly around optic nerve (lamina cribrosa)
- Thinner towards the equator and thinnest around EOM insertions
- The four vortex veins penetrate the sclera behind the…