A prolapsed 3rd eyelid gland is commonly called “cherry eye”. This condition is common in certain breeds, is inherited, and is not painful.
Two surgical options are available
“tacking” by ophthalmologist specialist is the preferred procedure, and sometimes needs to be redone if the gland tack comes loose
gland removal is less expensive and never needs to be redone, but does leave a slightly increased chance of the pet having reduced tear production later in life, a condition called keratoconjunc-tivitis sicca, which requires lifelong topical therapy to control.