Chronic pain: Pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to acute pain that arises suddenly in response to a specific injury and is usually treatable, chronic pain persists over time and is often resistant to medical treatments.
Less common conditions that can cause a lazy eye include: 1  an eye disease such as a sore on the transparent layer at the front of the eye (corneal ulcer) or a scar. 2  childhood cataracts â clouding of the lens of the eye that's present from birth. 3  a droopy eyelid (ptosis)
Summary: 1  Lazy Eye is an eye condition in which there is blurry or reduced vision that is not correctable by glasses, contact lenses or eye surgery. 2  Lazy eye can cause loss of vision, including loss of depth perception and two-eyed 3D vision.