The LidStick is essential to a proper meibomain gland exam. It is used in conjunction with any IR sensitive camera and allows the user trans-illuminated image capturing.
Normal glands can be imaged well with IR surface illumination, that is an IR light source being shined on an everted lid like a flash light. However, many of you dry eye patients will have swollen eye lids from irritation or conditions like blepharitis. In this situation the meibomian glands can appear missing with surface illumination. Trans-illumination is the only way yo make a proper assessment in these cases.