This sounds like a very upsetting situation, and hopefully you can have some reassurance after speaking with an eye specialist. Your son should have his vision examined right away to ensure that no permanent damage was done and to institute any further preventative measures as soon as possible. If you cannot get a same-day appointment with your son's eye doctor
or another ophthalmologist in the practice, you should go to the emergency department for evaluation right away. Your son may need more extensive flushing of his eye with a specially-designed eye faucet. Even though you did flush with saline at home, he will likely need at least 15-20 minutes of high-flow flushing with water or saline that cannot be easily done at home. Depending upon his eye exam in the ED, the physicians there may want the on-call ophthalmologist to come examine him which is why it is so important to seek care right away. In general, eye irritants can often cause ciliary flushing or irritation and blurred vision transiently, and we certainly hope that your son's vision will resolve and not be permanently affected. However, the best way to protect his vision is to seek urgent evaluation immediately.