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)
In medical terms, a lazy eye is better known as amblyopia. But through the years, people have come to know this condition by the laymenâs term because it describes the visible symptom of the eye turning inward or outward. But there are invisible symptoms of this condition, as well: Inability to correctly judge depth.