The difference between astigmatism and hyperopia lies in their different definitions, causes, symptoms, and treatment methods. 1. Different Definitions: Astigmatism refers to the different refractive power of the eyeball on different meridians, where parallel light rays cannot form a single focal point but two focal lines after passing through the eye. Hyperopia, on the other hand, refers to a state where parallel light rays from the outside enter the eye and focus behind the retina; 2. Different Causes: Astigmatism is generally caused by uneven corneal curvature or unequal curvature of various parts of the lens. Hyperopia is usually caused by factors such as too short anteroposterior diameter of the eyeball or excessive corneal curvature; 3. Different Symptoms: Patients with mild astigmatism generally do not have obvious symptoms of discomfort, but if astigmatism is severe, they may experience blurred vision, headaches, and other symptoms. Hyperopia often manifests as unclear vision of nearby objects and may be accompanied by symptoms of visual fatigue; 4. Different Treatment Methods: For patients with astigmatism, outdoor activities such as playing badminton or table tennis can be appropriate in daily life, which can promote eye blood circulation, relieve visual fatigue, and thus improve astigmatism. For patients with hyperopia, they can wear frame glasses or contact lenses under the guidance of a doctor to correct vision. If no improvement is achieved through these methods, surgery such as laser in situ keratomileusis (LASIK) can be considered. It is recommended that patients pay attention to reasonable use of their eyes, avoid reading books or using electronic products for long periods of time to prevent exacerbation of the condition. Additionally, maintaining a good mental state and avoiding excessive emotional excitement are also essential for recovery.
