Glassy eyes are eyes that look glazed over. They're caused by conditions like allergies, eye strain, or as a side effect of certain medications. ... Avoid smoking and limit alcohol use: ...

In this article, learn why eyes become glassy, how the symptom is treated, and ways to prevent it. ... When a person has consumed alcohol or used any street drug, their eyes may become glazed.

Medically reviewed by Christine L. Larsen, MD Glassy eyes occur when your eyes appear glazed over or shiny, like glass. Depending on the underlying cause, glassy eyes can be an acute (short-term ...