Key words: oximetry, retinal, metabolism, saturation, artefacts, disease

"Retinal oximetry in health and disease"

Oxygen is very important for the functioning of every cell in our body. The lungs absorb it from the air we breathe in and transfer it to the blood. The blood is pumped by the heart to different parts of the body. The blood flows through the blood vessels. The retina is the light sensitive region in the back of the eye. Retinal oximetry is the process of measuring the level of oxygen in its blood vessels. The measurement is done by taking two photographs of the retina with two different colours of light and based on the difference of brightness between the images the level of oxygen is calculated. This thesis deals with what levels normal eyes have and what happens in disease. It also speaks about the drawbacks and whether this technique is useful for the current management of patients.

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