The small pouch formed by the junction of the conjunctiva at the medial canthus of the eye. Tears collect in this area before they drain through the lacrimal canaliculi into the nasolacrimal duct. The lacrimal lake can hold a normal amount of tears, but when excess tears are secreted (e.g., during crying), the tears overflow the lipid-coated edge of the lower lids and spill onto the cheeks.