Cost for keratoconus treatment can vary greatly depending on the best option for the individual patient. Since treatments range from glasses and contact lenses (several hundred dollars) to a corneal transplant (many thousands of dollars) it is difficult to suggest one cost for keratoconus treatment.ost for keratoconus treatment can vary greatly depending on the best option for the individual patient. Since treatments range from glasses and contact lenses (several hundred dollars) to a corneal transplant (many thousands of dollars) it is difficult to suggest one cost for keratoconus treatment.
Steel is an alloy (mixture) of Iron and Carbon. Iron is the element abbreviabed as Fe on the periodic table (number 26), while Carbon is abbreviated as C (number 6).
Steel is an alloy of iron with greater than 0.02 % carbon but less than 2%, and cast iron is an alloy of iron containing a even more carbon between 2 and 4%. 2. Both are hard metals that can be ground or polished to a bright silver but cast irons are generally grey or white in the fractures when broken.