Hot weather eyes always have eye boogers, blurred vision is due to conjunctivitis is more likely to cause, with bacterial conjunctivitis and viral conjunctivitis is more common. Bacterial conjunctivitis: is due to staphylococcus aureus, staphylococcus epidermidis and other infections of the conjunctival tissues of the formation of inflammation, mainly the formation of yellowish-white eye boogers, the need for antibiotic eye drops, such as ofloxacin eye drops, tobramycin eye drops and so on. Viral Conjunctivitis: The inflammation is usually caused by herpes virus, adenovirus and other infections of the conjunctival tissues, and can be treated by ordering antiviral eye drops, such as ganciclovir eye drops, acyclovir eye drops and so on. It is not possible to determine by oneself which pathogen is causing the infection, and the patient should go to the ophthalmology department of the hospital for an examination, so that the doctor can make a diagnosis and guide the treatment.