Could be ‘Dry eye syndrome’ can be caused by a decline in tear production or blepharitis (eyelid inflammation). Central heating and working at computer screens can also be factors. Treatment Lubricating eyedrops, sprays or supplements, well as lifestyle as changes. See your optometrist or visit one of the specialist dry eye clinics launching this autumn (find your nearest centre at tearclinic.com). When to worry If accompanied by other symptoms as double such vision and pain.