Periorbital melanosis or dark circles...mainly related to physical & mental stress...exams..presentation... lack of sleep..near by works...excessive stressful use of laptops & mobile phones...post fever..etc.
Next Steps
Wunder eyes cream or Avarta under eyes..you can try twice daily.
Health Tips
check your eye for refractive error with the ophthalmologist.
And
Investigation;
CBC, S.
FERRITIN,S.VIT
B12 ,S.VIT D LEVEL - if its not coming down with the creams.
consult me on practo direct with the above mentioned reports or else further treatment and evaluation..