Answer:
Mental, emotional and physical health.
Explanation:
although you may be fit (physically healthy), you could be depressed (mentally healthy), which means you cant function to your full capacity.
bone marrow <span>contains hematopoietic stem cells, which give rise to the three classes of blood cells that are found in the circulation: white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes)</span>
The procedure is a refraction or vision test. The doctor may use a computerized refractor or simply shine a light into your eyes.
The answer would be peers
Working with wood like drilling, cutting, sanding, etc. because a chip could fly into your eye. wear protective eye glasses.
in a lab, chemicals could get on your skin and you rub your eye, something splashes up. makes sure to put on all protective gear that is recommended like gloves, apron, eye glasses.
getting surgery on your eye whether to help with sight or other things. make sure your doctor is qualified and has experience in your type of surgery before getting it.