MYOGEN
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is a lens that is expected to suppress
the elongation of the eye axis,which is a cause of myopia.

Cases of myopia in children
are on the increase.

The number of people with myopia is increasing year by year, and it is estimated that almost half of the world population will suffer from myopia in 2050.
In some regions, the increase of myopia in children is notable and has become a social problem.
The population suffering from myopia under the age of 40 around the world is expected to nearly double the number of myopic people in 2000 by 2050.
It is reported that besides study and reading, long-time use of smartphones, tablets, seriously affects the growth of children’s eyes.

*Myopia: The state where the length of the eyeball grows too long longitudinally and light entering the eye focuses in front of, not on, the retina.

Hands operating a tablet computer
A boy playing a video game on a large screen

A boy wearing glasses resting on his textbooks in front of a laptop

Change in population suffering from myopia in the world
Line graph: change in population suffering from myopia in the world. Number (millions) - 2000: 1,406 / 2010: 1,950 / 2020: 2,620 / 2030: 3,361 / 2040: 4,089 / 2050: 4,758. It is estimated that almost half of the world population will suffer from myopia.
Change in population suffering from myopia in the world by age
Bar graph: change in population suffering from myopia in the world by age. Number (millions) by age group (years) 0-4, 5-9, 10-14, 15-19, 20-24, 25-29, 30-34 and 35-39, comparing millions of myope in year 2000 and year 2050. The population suffering from myopia will nearly double by 2050.
B A Holden et al., American Academy of Ophthalmology, 2016, 123.

TOKAI’s original honeycomb structure keeps things looking naturally, and realizes wearing comfort.

Enlarged image of the lens showing the honeycomb structure
Enlarged image of lens
Image of how things look through the lens
Image of how things look

With the aid of its special lens shape that can control the traveling direction of light,
MYOGEN supports the sound growth of the eyes.

Incoming light through an ordinary lens focuses behind the eyeball, and this is a cause of the elongation of the eye axis.
MYOGEN is expected to suppress the elongation of the eye axis by controlling the traveling direction of light with the aid of its special lens surface shape.

Conventional lens: light focuses behind the eyeball and the eye axis is likely to elongate.
Conventional lens
MYOGEN: the special lens shape controls the traveling direction of light so that it focuses in front of the retina.
MYOGEN

*This figure shows a visual image of the action of MYOGEN for easy understanding, and does not intend to guarantee the effect.

In a clinical test conducted at the Zhongshan Ophthalmic Center of Sun Yat-sen University,
MYOGEN and a single vision lens were compared by actually wearing them, and it was confirmed that
MYOGEN suppressed the progress of myopia and the elongation of the eye axis.

Amount of change in the lengths of the eye axes of 10-year-old children
Graph: amount of change in the lengths of the eye axes of 10-year-old children. Amount of change in length of eye axis (mm) over a period of 6 months and 12 months, comparing a myopic eye, an eye wearing MYOGEN (myopic eye) and emmetropia. Source: Naduvilath, T (2023). Normative data for axial elongation in Asian children. Ophthalmic and Physiological Optics, 43(5), 1160-1168.
Naduvilath,T (2023).Normative data for axial elongation in Asian children.
Ophthalmic and Physiological Optics, 43(5),1160-1168.
A girl being fitted with a pair of glasses

*All figures and photos are images.

Living habits that can prevent myopia


  • Correct posture and
    appropriate brightness of light


    During study or reading, sit with your back straight, and keep your eyes at least 30 cm away from the book.
    Use lighting to keep the environment bright.

    Icon of a person reading under a desk lamp

  • Have some time to spend outdoors.


    Go outside for at least two hours a day to expose yourself to sunlight.

    Icon of a shoe and a ball

  • Rest your eyes.


    If you continue to look at near objects in work, look far away once every 20 minutes to rest your eyes.

    Icon of a window looking out at a distant landscape

  • Well-balanced diet


    Take well-balanced nutrition to support the growth of the eyes.

    Icon of vegetables, an egg and a fish

We will promptly deliver lenses appropriately tailored to children.

  • Icon of a thin lens

    Thin type lenses

    1.70
    1.60

    Lenses with a high index also look neat.

  • Icon of a quality badge

    High quality

    MYOGEN ensures wearing comfort with our made-in-Japan quality.

  • Icon representing an aspheric lens design

    Aspheric design

    The aspheric design characterized by reduced distortion realizes clear vision even in the four corners of the lens.

Precautions about sale

Adaptation to the vision is required when wearing the lenses.
MYOGEN is a lens with minimal discomfort and is easy to get used to, but the time required to adapt varies by individual. Please avoid strenuous sports and other exercise, driving vehicles such as bicycles, and using stairs until you are accustomed to the lenses.
  • ・Please exercise sufficient caution when riding bicycles or other vehicles and when walking on roads. If you feel that it is difficult to distinguish traffic signals, discontinue use and consult the ophthalmologist who issued your prescription.
  • ・MYOGEN is a lens with a special structure, composed of a combination of honeycomb-structured areas and clear areas. The honeycomb-structured areas may appear blurry, and you may feel discomfort at the boundary with the clear areas.
  • ・If you are unable to get used to the lenses, please consult again with the ophthalmologist who issued your prescription.
  • ・Be sure to read the “Instruction Manual” before use. For children, guardians should explain the information in a way the child can understand and exercise sufficient caution.
The efficacy of MYOGEN in slowing the progression of myopia is based on the results of
clinical trials conducted at the Zhongshan Ophthalmic Center of Sun Yat-sen University
in China. Please contact us for information regarding your country of residence.

  • *All photos and illustrations contained in this catalog are images.