What is not a sign of hypoxia?

Good oxygenation of the cornea is not a sign of hypoxia because it indicates that the cornea is receiving an adequate supply of oxygen necessary for its health and function. In a state of hypoxia, the cornea is compromised in its ability to obtain sufficient oxygen, often leading to several noticeable signs of distress or damage.

When the cornea suffers from hypoxia, it can exhibit signs such as vertical striae, which are grooves caused by swelling of the stroma. Neovascularization occurs as the body attempts to compensate for low oxygen by forming new blood vessels, which can adversely affect vision due to their potential obstruction of light pathways or contributing to other complications. Corneal edema, characterized by a swollen cornea due to excess fluid accumulation in response to insufficient oxygen, is another clear indicator of hypoxia.

In the context of eye health, maintaining good oxygenation is essential, as it supports corneal transparency and overall visual function. Hence, the presence of good oxygenation directly contradicts the definition of hypoxia.