Presbyopia: causes, solutions and treatments

What is presbyopia?

Presbyopia is a gradual loss of the eye’s ability to accommodate. To see clearly at different distances, the eye must adjust the curvature of its lens — this is known as accommodation. With age, the lens gradually hardens and loses this flexibility. Focusing for near vision becomes impossible : nearby text appears blurry, reading becomes uncomfortable, and you stretch your arm out to read.

Presbyopia is not a disease : it is a universal physiological phenomenon. It generally begins between 42 and 48 years of age and progresses until around age 60, by which point the lens has lost almost all of its flexibility. It can coexist with myopia, hyperopia or astigmatism, which makes optical correction more complex.

A short-sighted patient can sometimes read without glasses by removing their distance correction — but this situation deteriorates as the presbyopic addition increases. A far-sighted patient, on the other hand, may be bothered both at distance and up close at the same time.

Non-surgical solutions

Several optical solutions can compensate for presbyopia without surgery. Each has its own advantages and constraints.

Surgical solutions

For patients who want to reduce their dependence on glasses or contact lenses, several surgical options exist. The choice depends on your age, your correction, the condition of your lens and your visual expectations. A preoperative assessment is essential to determine which technique is suited to your situation.

Solution	Principle	Main indication	Indicative age
PresbyLASIK	Excimer laser on the cornea	Isolated presbyopia or associated with myopia or hyperopia, lens still clear	45 – 60 years
Multifocal implant	Replacement of the lens	Associated cataract, or advanced presbyopia after 55 without visible cataract	55 years and over
Phakic ICL implant	Intraocular implant without corneal ablation	Presbyopia + high myopia ruled out for laser, cornea too thin	45 – 55 years

When to consult?

A consultation is recommended if you experience any of the following signs :

• Increasing difficulty reading small text or text on a screen
• Needing to hold documents further away to read comfortably
• Eye strain at the end of the day during close-up tasks
• Reading glasses forgotten or no longer strong enough
• A wish to reduce dependence on progressive glasses

Presbyopia surgery: what to expect

The surgical correction of presbyopia is based on a principle of optical compromise. Two main approaches exist : monovision, where one eye is favoured for distance vision and the other for near vision, and multifocal profiles — corneal with PresbyLASIK, or intraocular with an implant. In every case, the aim is to reduce dependence on glasses, without always eliminating it entirely.

The brain plays a central role : it learns to favour the sharpest image depending on the distance being looked at. This neuroadaptation usually takes a few weeks. Before a PresbyLASIK in monovision, a trial period with contact lenses may be offered to check tolerance. The preoperative assessment precisely evaluates the cornea, the lens and the refraction to guide the most suitable solution.

Like any surgery, these techniques involve constraints and possible visual effects (night halos, reduced contrast sensitivity depending on the technique). The assessment may also conclude that glasses remain, for some patients, the most comfortable choice : the goal of a consultation is first and foremost to inform your decision.

Frequently asked questions about presbyopia

Living with presbyopia: screens and everyday comfort

Presbyopia often first shows up in front of screens. Prolonged work on a computer or smartphone places heavy demands on near and intermediate vision, precisely at the distances where accommodation becomes deficient after 45. Many patients consult not because they can no longer see up close, but because the eye strain at the end of the day becomes bothersome : stinging, headaches, an intermittent sensation of blur.

A few simple habits help limit this discomfort : increasing the text size, taking care of the room lighting, and applying the 20-20-20 rule (every 20 minutes, look at a point about 6 metres away for 20 seconds). These measures relieve symptoms linked to visual effort, but they do not correct presbyopia itself : when it lastingly interferes with daily life, an optical or surgical solution is worth evaluating.

After the procedure: recovery and follow-up

After a PresbyLASIK, visual recovery is generally rapid : vision improves within the first few days, even if full stabilisation and neuroadaptation can take a few weeks. Temporary discomfort — dry eye, night halos, fluctuating vision — is common during this period and gradually fades. After the placement of an intraocular implant, follow-up is spread over several weeks.

In all cases, follow-up consultations make it possible to check healing and how the result is developing. Dr Tourabaly provides the preoperative assessment and follow-up in Cachan ; the laser procedure takes place at Clinique Laser Victor Hugo. No result can be guaranteed in advance : the aim is to achieve the best possible visual comfort given your profile and your expectations.