Its a painless nodular leision of the eyelid involving the meibomian gland which does not regress with medication and requires incision and curetttage.
Squint corection is done in two ways, one is refractive and another is surgical, squint in children have to be addressed as early as possible to prevent permanent loss of vision.
Excision of lacrimal gland is done through conjunctiva and through the skin, there is another procedure called DCR where the approach is through the nose.
Sturing the eye lid might require grafting if there is tissue loss where a thin prolene suture is used to give a minimal post traumatic lid eversion or inversion.
Small conjunctival lacerations with apposed tissues does not require surgical repair but those which are large requires suturing with 10.0 prolene.
Such leisions well and possible cautery has to be applied, Leisions which do not enter the inside of eye are safe to excise without loss of vision.