hyperopia

DEFINITION of hyperopia

In a hyperopic eye, the eyeball is typically too short (axial hyperopia) or the cornea/lens has insufficient curvature (refractive hyperopia), meaning incoming light hasn’t converged enough by the time it reaches the retina. The eye compensates by using the ciliary muscle to increase lens curvature (accommodation), which works well in children and young adults with flexible lenses but becomes increasingly strained or impossible with age. Symptoms include blurred near vision, eye fatigue, squinting, and headaches after close work. Severe hyperopia affects both near and distant vision. It is the most common refractive error in childhood and is often present from birth. Treatment includes convex (plus-power) corrective lenses, contact lenses, or refractive surgery (e.g., LASIK, PRK).

---

ETYMOLOGY of hyperopia

greek First attested in English in 1861 as Modern Latin hyperopia. Greek ὑπέρ (hypér) — “over, beyond, above, to excess,” from PIE root meaning “over” Greek ὤψ (ōps) — “eye, sight, face” (genitive ὠπός, ōpos), from PIE root okʷ- (“to see”)-ia — Greek abstract noun suffix denoting a state or condition. Literally translates to “over-sight” or “beyond sight,” reflecting the idea that the focal point falls beyond (behind) the retina.

---

CLINICAL CLASSIFICATION

Hyperopia is categorized in multiple ways:

• Simple: Naturally occurring biological variation
• Pathological: Due to disease, trauma, or abnormal development
• Functional: From paralysis of accommodation (e.g., CN III palsy)
• Facultative: Portion overcome by the patient’s own accommodation
• Absolute: Residual portion that cannot be compensated by accommodation
• Latent: Hidden hyperopia masked by ciliary muscle tone, only revealed by cycloplegic refraction

---

RELATED TERMS

Term	Meaning
Myopia	Nearsightedness; opposite of hyperopia — focal point falls in front of the retina
Presbyopia	Age-related loss of near accommodation, compounding hyperopia in older patients
Emmetropia	Normal vision; focal point falls exactly on the retina
Astigmatism	Irregular corneal/lens curvature causing distorted focus at all distances
Amblyopia	”Lazy eye”; can develop from uncorrected hyperopia in childhood
Esotropia	Inward eye turn; frequently associated with hyperopia in children
Accommodation	The eye’s ability to adjust lens curvature to focus at varying distances
Cycloplegia	Paralysis of accommodation, used diagnostically to reveal total/latent hyperopia
Anisometropia	Different refractive errors in each eye, often involving one hyperopic eye

---

DERIVATIONS of hyperopia

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(roots, (word) => econtains([[]].roots, word))) > 0 AND file.name != [[]].file.name
SORT file.name ASC

---

Query functionality

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(definition, (word) => econtains([[]].definition, word))) > 0 AND file.name != [[]].file.name

Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms