Vision condition in which one can see distance objects, but close objects do not come into proper focus. Farsightedness occurs if your eyeball is too short or the cornea has too little curvature, so light entering your eye is not focused correctly.
Signs/Symptoms: Difficulty maintaining a clear focus on near objects, eye strain, fatigue and/or headaches after close work, aching or burning eyes, irritability or nervousness after sustained concentration.
Also note: School vision screenings, often do not detect farsightedness. A comprehensive optometric examination will include testing for farsightedness.
Vision condition in which one can see near objects clearly, but objects in the distance appear blurry. Nearsightedness occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature. As a result, the light entering the eye isn’t focused correctly and distant objects look blurred.
Signs/Symptoms: Difficulty obtaining a clear focus on objects in the distance, such as the smartboard at school or road signs.
Also note: There is growing evidence that nearsightedness can be caused from the visual stress of too much close work.
Vision condition that causes blurred vision at any distance. It occurs from either an irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back of the eye. As a result, vision becomes blurred at any distance.
Signs/Symptoms: Distorted or blurred vision, eye discomfort and headaches.
Also note: Astigmatism is a very common vision condition and frequently occurs with other vision conditions like hyperopia and myopia.