El ojo de vidrio (The Glass Eye) is a 1969 Mexican revolution-epic film directed by René Cardona Jr., starring Antonio Aguilar, Flor Silvestre, Manuel Capetillo, Eleazar García, Alejandro Reyna and Guillermo Rivas.

With a backdrop of the Mexican Revolution, the film recounts the story of former horse wrangler and bandit Porfirio Alcalá y Buenavista, who becomes the subject of a popularly known corrido along with his four cousins, after being notoriously heroic for raiding rich landlords and helping the poor.

As their last raid attack, they take vengeance to the man who caused their tragedy, and evade revolutionary troops who call for peace after Porfirio Díaz resigns and is exiled.

El ojo de vidrio, shot on location in Tayahua, Zacatecas, was a box-office hit[1] in Mexican theaters and particularly distinctive for its imaginative use of mixing drama with comic relief within the main characters.

El ojo de vidrio was first released in VHS in 1991 by Million Dollar Video, and later in 2003 under the "Antonio Aguilar: Colección Clásica".