A temporary visual condition that resembles true nearsightedness, often experienced by children due to prolonged eye strain from activities like reading or watching television.
A mild form of nearsightedness that develops as a result of sustained tension in the ciliary muscles, which can improve with proper eye care and exercises focused on distant vision.
A reversible state of near vision impairment that manifests from excessive close-up activities, primarily affecting school-aged children, and can be alleviated with specific corrective measures.
Example:
仮性近視というのは知ってましたが、まさか自分の子供が仮性近視になるなんて思ってませんでした。
A vision condition where distant objects appear blurry due to the eye's inability to focus light correctly, often caused by the shape of the eyeball or the curvature of the lens.
A state of vision characterized by a limited ability to see far away, leading to a focus on immediate surroundings rather than distant perspectives.
The optical defect that results when incoming parallel light rays converge before reaching the retina, causing distance vision to be unclear, commonly correctable with concave lenses.
Example:
私は近視なので、あの看板に何が書いてあるか分からない。