The treatment of blurry vision depends entirely on identifying the underlying cause. Refractive error is the most common cause and may be corrected with glasses or contact lenses. In patients with diabetes, blurry vision may be related to recent changes in blood sugar levels and can fluctuate as glucose control changes.

In an ophthalmology clinic, specialized testing can determine whether blurry vision is due to a simple focusing issue or a more serious eye condition. While glasses prescriptions are typically managed by optometrists, patients may be referred for corrective lenses when appropriate.

If testing reveals more significant eye disease, treatment is customized to the specific diagnosis. For example, blurry vision caused by retinal swelling or bleeding may require medication injections or laser treatment. Patients with vitreous hemorrhage related to diabetes may benefit from injections or surgical intervention such as vitrectomy. In cases where blurry vision is caused by optic nerve compression, such as in thyroid eye disease, treatment may include medications or surgical decompression.

Because blurry vision can range from benign to vision-threatening, determining the cause is the most important step in guiding effective treatment and protecting long-term vision.