If you still have blurred vision after your conjunctivitis has resolved, it is important to check the condition of the cornea to see if it is infected with keratitis due to conjunctivitis. This is more common in viral keratitis, where viral conjunctivitis turns into viral keratitis, causing blurred vision. In this case, it is important to actively treat keratitis to avoid further vision loss. In addition, there may be refractive changes after conjunctivitis, such as a decrease in vision in the eyes that was not noticed before, and a rise in attention to the eyes after conjunctivitis, and refractive conditions may come to the fore. Therefore, if there is blurred vision, optometric treatment is also required. If there is a certain amount of refractive error, a correction with glasses can usually improve the vision again as well.