Hyperopia (Farsightedness): Causes and Treatment Options

Hyperopia is a common type of refractive error where the focal point of the eye is formed behind the retina instead of on it, causing nearby objects to appear blurry. Managing this condition, which affects millions of people worldwide, is now easier than ever with accurate diagnosis, effective treatment methods, and state-of-the-art solutions.

What is hyperopia?

Hyperopia (also known as farsightedness or hypermetropia) develops as a result of the eye’s anterior-posterior axis being shorter than normal or the cornea not being curved enough. In this case, incoming light rays fall behind the retina, not on it. Although the brain can compensate for this situation for a while, over time the eye muscles get tired and visual clarity decreases.

Contrary to myopia, hyperopia can be defined as having difficulty seeing near objects while being able to see distant objects clearly; however, in high-degree hyperopia, both near and distance vision can be impaired.

What are the symptoms of hyperopia?

The most common symptoms of hyperopia are:

• Difficulty seeing nearby objects
• Rapid fatigue and headaches during reading
• Constant need to rub the eyes
• Double vision (especially after fatigue)
• Blinking and a burning sensation in the eyes
• Difficulty concentrating and distractibility
• Risk of strabismus (crossed eyes) and amblyopia (lazy eye) in children

Causes and Risk Factors of Hyperopia

The main cause of hyperopia is genetic; however, environmental factors can also directly affect eye health. The main risk factors can be listed as follows:

• Family history (genetic predisposition)
• Congenital eye structure abnormalities
• Advanced age (can be seen together with presbyopia)
• Working at close range for long periods
• Reading in insufficient lighting conditions

How is hyperopia diagnosed?

Hyperopia diagnosis is made through a comprehensive eye examination performed by an ophthalmologist. The main tests applied during the examination are:

• Visual acuity test (Snellen chart)
• Refraction measurement (automatic and manual)
• Biomicroscopy (anterior segment evaluation)
• Fundus examination (retina and optic nerve examination)
• Intraocular pressure measurement

Hyperopia Treatment Options

Multiple methods are available to manage hyperopia. The most suitable treatment option is determined depending on the patient’s age, diopter value, lifestyle, and eye health.

1. Glasses and Contact Lenses

In mild and moderate hyperopia cases, glasses with convex (plus) lenses or contact lenses are the most common treatment methods. While glasses offer a temporary solution, surgical options provide more permanent results for those who want to increase their quality of life.

2. Laser Eye Surgery (LASIK / PRK)

LASIK and PRK allow light to focus correctly on the retina by restructuring the corneal shape with a laser. However, these methods may not be suitable for every patient; alternative surgical options should be evaluated in cases such as thin cornea, large pupils, or high diopter values.

3. Smart Lens Technology (Refractive Lens Exchange)

Smart lens technology is an extremely effective and one of today’s most advanced surgical methods, especially for patients with high-degree hyperopia, accompanying cataracts, or those not suitable for laser surgery.

A smart lens (premium intraocular lens / IOL) is a refractive surgical method based on the process of removing the natural crystalline lens inside the eye and replacing it with an artificial lens with advanced optical properties. Among today’s smart lens technologies, the most prominent options are:

Trifocal (Triple Focus) Lenses: Provides sharp vision at near, intermediate, and far distances.

EDOF (Extended Depth of Focus) Lenses: Makes intermediate and far distance vision continuous.

Toric Lenses: Corrects astigmatism simultaneously with hyperopia.

Light-Adjustable Smart Lenses: Can be fine-tuned after surgery, offering the most precise results.

Advantages of Smart Lens Technology

• One-time permanent solution: Since the natural lens is completely replaced, cataracts do not develop in later years.
• Wide diopter range: Effective even at high prescriptions where laser surgery is insufficient.
• Multi-focal vision: Opportunity for vision without glasses at near, intermediate, and far distances.
• Fast recovery process: Most patients can return to their daily lives within a few days.
• Safe and proven: Successfully applied millions of times worldwide.

Who is smart lens technology suitable for?

Smart lenses are primarily recommended for patients meeting the following criteria:

• Individuals over 40 years old (presbyopia + hyperopia together)
• Patients not suitable for laser surgery due to insufficient corneal thickness
• High-degree hyperopes of +4 diopters and above
• Individuals with beginning cataracts or at risk for cataracts
• Patients who also want to correct astigmatism

4. Implantable Collagen Lens (ICL / Phakic IOL)

This method, where the natural lens is preserved and an additional lens is placed inside the eye, can be preferred in young patients with high prescriptions. The fact that it can be removed if necessary provides a significant advantage.

Ways to Prevent Hyperopia and Protect Eye Health

Although it is not possible to completely prevent hyperopia, early diagnosis and protective measures significantly increase the quality of life:

• Have a comprehensive eye examination at least once a year.
• Do not neglect vision screening in children during the pre-school period.
• Apply the 20-20-20 rule in digital screen use (every 20 minutes, look 20 feet/6 meters away for 20 seconds).
• Pay attention to adequate lighting when reading and working at close range.
• Take care to drink enough water and use eye drops to prevent dry eyes.
• Support eye health with a balanced diet (foods containing omega-3, lutein, zeaxanthin).