Final answer:
To change red eye color back to its original hue, avoid irritants, rest your eyes, use artificial tears if needed, and see an eye doctor if redness persists or is accompanied by other symptoms. Human eye colors are determined by genetics and cannot be changed naturally.
Step-by-step explanation:
If your eyes have a red color and you are looking to return them to their original color, it is essential to understand the underlying causes of the redness. Red eyes can sometimes be a temporary condition, often resulting from fatigue, irritation, or allergies. To help reduce the redness, you should avoid irritants, get adequate rest, use artificial tears or eye drops (if recommended by a doctor), and protect your eyes from harsh environments.
In some cases, the redness in your eyes could be a sign of an underlying health issue that needs medical attention. If simple home remedies do not alleviate the redness, or if you experience pain, vision changes, or discharge, you should seek the advice of an eye care professional. Remember, human eye color, ranging from green, blue, brown, black, hazel, violet, or grey, is determined by complex inheritance patterns and cannot be changed naturally.