THe questionnaires showed no statistically significant difference between the two eyes in dryness sensation, redness, light sensitivity, blurred vision or overall comfort.
The spectrum of eye symptomatology at presentation ranged from the absence of symptoms to eye redness, ocular pain, light sensitivity, blurred vision, and photophobia and to declining visual acuity, scotoma, and floaters.
Common symptoms include dryness, light sensitivity, blurred vision, as well as burning, gritty, and sandy feelings (often called "foreign body sensation").
Headache is the primary symptom of migraine and patients may also be afflicted by other symptoms including pulsatile pain, light sensitivity, sound sensitivity, nausea, unilateral pain, blurred vision and emesis.
The agency also advised people who have used the product to call an eye doctor if they have experienced eye pain or redness, blurred vision, sensitivity to light, the feeling of something in the eye or excessive tearing.
Dr. Malvina B. Eydelman, an eye specialist with the F.D.A., said that patients using soft contact lenses who have redness, pain, tearing, discharge, an increased sensitivity to light or blurred vision should see an ophthalmologist.
And, officials said, those who have used the product should call an eye doctor if they have experienced eye pain or redness, blurred vision, sensitivity to light, the feeling of something in the eye or excessive tearing.
Visual symptoms include light sensitivity, seeing bright lights, blurred vision, and double vision.
Mosseri said the company will use "sensitivity screens" to blur self-harm images until users indicate they want to see the content.
They can include eye redness, eye pain, blurred vision, light sensitivity, floating spots, and decreased vision.
Those with migraine headaches who experience blurred vision and sensitivity to light, not to mention acute pain, probably have a hard time staring at a computer screen all day.
