Presbyopia
By The Treatment Registry editors
Age-related loss of the lens's ability to focus on near objects, typically presenting in the 40-50 age range. Distinct from refractive errors of childhood and young adulthood (myopia, hyperopia, astigmatism). Treatment options range from reading glasses and contact lenses through to refractive lens exchange (RLE) and corneal procedures.
Clinical overview
Signs and symptoms
Presbyopia is an age-related, progressive loss of the eye's ability to focus clearly on close objects. Most people notice changes in their near vision after the age of 40, which worsen until around 65. A common early sign is difficulty reading small print, prompting the person to hold reading material farther away; a cardinal complaint is "short arms", the inability to hold material far enough from the eyes to read clearly. Other symptoms include eye strain (soreness and tiredness of the eyes), headache, squinting and drowsiness during close-up tasks, and difficulty transitioning between near and far distances. Presbyopia generally does not affect the ability to focus on distant objects.
Causes and risk factors
Presbyopia is a normal part of ageing, and the main risk factor is being older than 40. It arises from age-related stiffening of the crystalline lens together with weakening of the ciliary muscle, so that the eye focuses light behind rather than on the retina when viewing near objects. With age the lens loses flexibility through progressive nuclear sclerosis, in which insoluble crystallin proteins aggregate and cross-link, making the lens too rigid to be reshaped for near vision by ciliary contraction. Premature presbyopia, with onset before age 40, is more likely in people with hyperopia, and is linked to certain medications (antihistamines, antidepressants, diuretics), diabetes, cardiovascular disease, multiple sclerosis, premature menopause, anaemia, prior eye or head trauma, and earlier surgery on the lens such as cataract surgery.
How it is diagnosed
Presbyopia is diagnosed by a comprehensive dilated eye examination including a refraction assessment and an eye-health evaluation. In presbyopia the near point of accommodation is recessed beyond the usual reading distance, so the eye cannot focus at reading distance or closer. Slit-lamp biomicroscopy and ophthalmoscopy are used to assess the front and back of the eye and to check for co-morbidities such as cataract, glaucoma, macular degeneration or dry eye. Severity is categorised as mild (typically ages 40-45, +0.75 to +1.25 dioptres), moderate (ages 46-55, +1.5 to +2.25 dioptres) or advanced (over 55, +2.5 dioptres or more). Differential diagnoses include accommodative insufficiency and latent hyperopia.
Who it affects
As of 2015, the prevalence of presbyopia was 24.9%, or an estimated 1.8 billion people globally, projected to rise to 2.1 billion people by 2030. All people over 40 are at risk and become affected to some degree. Women over 40 have a higher prevalence than men, hypothesised to reflect differences in tasks performed and viewing distances rather than a physiological sex difference.
Clinical overview sourced from encyclopaedic medical reference; see sources below. General information only — not a substitute for individual clinical assessment.
Treatment ladder
Conservative options are first-line where appropriate; surgical options are typically reserved for cases where lower-tier options are unsuitable or have failed. Decisions are individual and depend on clinical assessment.
Conservative
- Reading glasses or progressive lenses
Optical correction for near vision. Lowest cost, reversible, no surgical risk. The default choice unless the patient has a specific reason to seek a surgical solution.
- Monovision contact lenses
One eye corrected for distance, the other for near. Most patients adapt but some experience reduced depth perception. Trial with contact lenses is the standard pre-surgical assessment.
Procedural
- Multifocal contact lenses
Contact lenses incorporating multiple focal zones. Higher cost than monofocal lenses; not all patients tolerate the optical compromise.
Surgical
- Refractive Lens Exchange · View procedure page
Clear lens extraction with implantation of a monofocal, multifocal, or extended depth-of-focus IOL. Permanent and prevents future cataract. Carries the small risks of any intraocular surgery and the optical compromises of any multifocal IOL.
- Premium intraocular lens at cataract surgery · View procedure page
If presbyopia coexists with early cataract, treating both at once with a multifocal or extended depth-of-focus IOL can address both conditions in one operation. Patient suitability is the gating question.
Related procedures
Sources
- [1]WHO Surgical Safety Checklist — who.int(accessed 2026-05-09)
- [2]Wikipedia — Presbyopia — en.wikipedia.org(accessed 2026-07-24)
Sources marked “on file” are held by The Treatment Registry but are not publicly accessible.