I'm sorry to hear about the discomfort you're experiencing in your eyes. It’s good that you washed your eyes immediately after the substance got into them, which helps reduce irritation.

Here are some steps you can follow:

• Avoid rubbing your eyes, as this can cause further irritation or damage.
• Rinse your eyes gently with clean, lukewarm water for several minutes to help flush out any remaining particles.
• If you feel like there is still something in your eye, try blinking frequently to encourage natural tears to clear it out.
• Avoid using any eye drops or medications unless prescribed by a doctor.
• If you experience persistent discomfort, redness, vision changes, increased pain, or discharge, seek prompt evaluation.

Since you mentioned a burning sensation and a feeling of something in your eyes, it is important to have an eye specialist (ophthalmologist) examine you to rule out any injury or residual foreign material.

Please consult an ophthalmologist as soon as possible for a thorough assessment and appropriate treatment. If symptoms worsen or vision is affected, seek emergency care immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender.