Do lack of sleep causes yellow eyes? Please help me, I'm getting worried I'm just a teenager. Thank you

No. A yellow stain. In the sclerae may be jaundice, deposits of the bile pigment bilirubin, from liver diseases like viral hepatitis. Also, 10% of Malaysian kids have an inherited gene mutation that causes G6PD Deficiency. You may have it & never know till you eat a food or take a medicine that causes your Red Blood Cells to break down too fast, which can cause jaundice. Don't fret; do see your doctor soon.