Synhälsa

Synhälsa, or eye health, refers to the state of the visual system and its ability to function clearly and safely. It encompasses the health of the eyes themselves as well as the visual pathways that connect the eye to the brain. Good synhälsa supports everyday activities, safe driving, and quality of life.

Eye health depends on sensory function (vision clarity, color and contrast perception) and ocular structures such as the cornea, lens, retina, optic nerve, and tear system. Regular eye examinations can detect problems early, often before symptoms appear.

Risk factors for reduced eye health include aging, diabetes, hypertension, smoking, genetic predisposition, exposure to ultraviolet light, and extended screen time. Protective measures include wearing sunglasses with UV protection, using safety eyewear during activities, not smoking, managing chronic diseases, maintaining a balanced diet, and giving eyes regular rest during screen use.

Common conditions include refractive errors (myopia, hyperopia, astigmatism, presbyopia) and cataracts, glaucoma, age-related macular degeneration, diabetic retinopathy, dry eye, and infections. Many conditions are detectable in routine screenings and are treatable or manageable with lenses, medications, or procedures when needed.

Treatments range from corrective lenses to medications and surgical interventions, depending on the condition and severity. Access to eye care varies, and public health programs aim to reduce preventable vision loss through screenings, affordability, and awareness.