fluorescein staining
fluorescein stain visualized with UV.
The corneal reflex is a protective mechanism that helps prevent injury to the eye. When the cornea is touched or irritated, the reflex causes the eyelids to blink rapidly to help remove the irritant and protect the eye. This reflex is important for maintaining eye health and preventing damage to the cornea.
An eccentric contraction is one that causes a muscle to lengthen.
The chemical that causes the tears is syn-propanethial-S-oxide, a corneal irritant.
due to contraction of heart
Extension of knee
Exfoliation is primarily caused by a combination of thermal expansion and contraction due to daily temperature fluctuations. The heating of rock during the day causes expansion, while cooling at night causes contraction. This continuous expansion and contraction weaken the rock, leading to exfoliation.
Sulfuric acid.
Expansion and contraction
left ventricular contraction
Insufficient pressure on the flask during processing causes porosity in denture.