Causes of keratitis include: 1  Injury. 2  If an object scratches the surface of one of your corneas or penetrates a cornea, keratitis without an infection may result. 3  In addition, an injury may allow bacteria or fungi to gain access to the cornea through the damaged surface, causing infectious keratitis.
There are 5 species of stonefish that can be found in the coastal regions of Indian and Pacific oceans. Some species of stonefish live in the rivers. Stonefish lives close to coral reefs and underwater rocks. It often lies buried in the sand in the shallow water.
1 Stonefish is the most venomous fish the world. 2  It is also known as dornorn, rockfish, and reef stonefish. 3  Though primarily a marine creature, some of the species of stonefish are also found dwelling in rivers as well. 4  A stonefish, on average is around 30 to 40 cm long. Though primarily a marine creature, some of the species of stonefish are also found dwelling in rivers as well. 2  A stonefish, on average is around 30 to 40 cm long. 3  Some stonefish are also known to grow to 50 cm, though the number of such cases is very low.