One Year Since the Opening of the Osaka-Kansai Expo. Cross-Analysis of Eye Health Data and Body Measurement Pod Data from 140,000*1 People Obtained at the Osaka Healthcare Pavilion.
Rohto Pharmaceutical analyzed eye health data of over 140,000 visitors at the Osaka-Kansai Expo. Findings show prolonged digital viewing worsens eye fatigue and 'Eye Age', correlating with skin youthfulness.
📋 Article Processing Timeline
- 📰 Published: April 13, 2026 at 22:15
- 🔍 Collected: April 13, 2026 at 16:35
- 🤖 AI Analyzed: April 19, 2026 at 20:20 (147h 45m after Collected)
Rohto Pharmaceutical Co., Ltd. (Headquarters: Osaka City, President: Hidetoshi Segi) collected and analyzed the eye health data of over 100,000 visitors at the 'Future Eye Care' booth exhibited at the Osaka Healthcare Pavilion of the 2025 Japan International Expo (Osaka-Kansai Expo). The results revealed that about 30% of people view digital devices for 8 hours or more on weekdays, and those with longer viewing times have a higher rate of experiencing eye discomfort. Furthermore, using 'Eye Age'*2 as an indicator, the reality of modern people's eyes and their relationship with the skin have become clear.
Based on these results, we will continue to utilize them in 'initiatives related to eye health' including awareness-raising activities.
*1 Analyzed based on a population of 143,086 records linked with booth visitor and body measurement pod data from April 13, 2025, to October 13, 2025.
*2 Eye Age: The estimated visual age analyzed by AI from image data of the eye surface and the skin surface around the eyes.
■ Topics seen from eye health data
[The reality of booth visitors' eyes seen from data]
Topic 1: The burden approaching modern people's eyes! Prolonged digital viewing
- About 30% of people view digital devices for '8 hours or more' on weekdays.
- Over 40% of people in their 20s and 30s view for a long time exceeding 8 hours.
When asked about weekday digital viewing time, about 30% of the total answered '8 hours or more'. Furthermore, over 40% of those in their 20s and 30s fall into this category, highlighting the reality that younger generations are exposed to digital devices for longer periods. It suggests that the use of smartphones and computers has become a daily routine, and the burden on the eyes is becoming more serious.
Topic 2: The relationship between viewing time and eye discomfort
- About 60% are daily aware of 'heavy eyelids / dry eyes'.
To the question 'Do you experience heavy eyelids or dry eyes in your daily life?', 62.1% answered 'Feel it' (total of 'Feel it', 'Feel it a little', 'Feel it very much'). Also, to the question 'Have your eyes been dry in the past week?', 59.6% answered 'Yes', suggesting that many people spend their daily lives with eye discomfort.
- Impact on daytime performance? Over 70% feel 'sleepiness'.
To the question 'Do you feel sleepy during the day?', 74.8% of the total answered 'Sleepy' (total of 'A little sleepy', 'Sleepy', 'Very sleepy'). There are concerns about the impact of eye condition on QOL (Quality of Life) and daytime performance, and it is possible that this sleepiness is related to the condition of the eyes.
Topic 3: People in their 40s and older should be careful! The longer the device viewing time, the higher the 'Eye Age'!
- The average 'Eye Age' measured at the Expo venue was 43.8 years old, which was lower than the average actual age (45.5 years old).
- When examining the gap between Eye Age and actual age and the time spent viewing digital devices such as PCs and smartphones, it was confirmed that the longer the digital viewing time, the higher the 'Eye Age' tended to be. This tendency was prominent among middle-aged and older people in their 40s to 60s.
Topic 4: Are all modern people suffering from tired eyes!? Over 40% have severe eye fatigue.
- The average tired eye score of visitors was 64 points. Those with 60 points or more exceeded 60%, and further, those with 80 points or more accounted for 40%. It was observed that those with 80 points or more tended to strongly feel 'digital damage', 'heavy eyelids', and 'daytime sleepiness', despite no difference in monitor viewing time.
- About 25% of those with a tired eye score of 80 points or more did not feel any subjective symptoms. This suggested that even if the person is unaware, there is a possibility that 1 in 4 people actually have tired eyes.
Topic 5: Correlation between Eye Age and skin youthfulness! 40% have young skin but a high 'Eye' age.
- A correlation was found between Eye Age and skin youthfulness. In addition, looking at the individual items of Eye Age and skin score, it was confirmed that 'eye bags' and 'wrinkles' are correlated with Eye Age.
- As many as 40% of people have a skin score that is young, but their 'Eye' age is higher than their actual age. A comparative analysis of this demographic confirmed that many of them feel sleepy during the day (TOP2 difference: 6.0pt) and their monitor viewing time is long (TOP2 difference: 12.3pt). Even if your skin is young, do not let your guard down. You might be losing out because of your 'eyes'. It suggested a disparity in 'Eye Age' that monitor viewing time can bring.
Based on these results, we will continue to utilize them in 'initiatives related to eye health' including awareness-raising activities.
*1 Analyzed based on a population of 143,086 records linked with booth visitor and body measurement pod data from April 13, 2025, to October 13, 2025.
*2 Eye Age: The estimated visual age analyzed by AI from image data of the eye surface and the skin surface around the eyes.
■ Topics seen from eye health data
[The reality of booth visitors' eyes seen from data]
Topic 1: The burden approaching modern people's eyes! Prolonged digital viewing
- About 30% of people view digital devices for '8 hours or more' on weekdays.
- Over 40% of people in their 20s and 30s view for a long time exceeding 8 hours.
When asked about weekday digital viewing time, about 30% of the total answered '8 hours or more'. Furthermore, over 40% of those in their 20s and 30s fall into this category, highlighting the reality that younger generations are exposed to digital devices for longer periods. It suggests that the use of smartphones and computers has become a daily routine, and the burden on the eyes is becoming more serious.
Topic 2: The relationship between viewing time and eye discomfort
- About 60% are daily aware of 'heavy eyelids / dry eyes'.
To the question 'Do you experience heavy eyelids or dry eyes in your daily life?', 62.1% answered 'Feel it' (total of 'Feel it', 'Feel it a little', 'Feel it very much'). Also, to the question 'Have your eyes been dry in the past week?', 59.6% answered 'Yes', suggesting that many people spend their daily lives with eye discomfort.
- Impact on daytime performance? Over 70% feel 'sleepiness'.
To the question 'Do you feel sleepy during the day?', 74.8% of the total answered 'Sleepy' (total of 'A little sleepy', 'Sleepy', 'Very sleepy'). There are concerns about the impact of eye condition on QOL (Quality of Life) and daytime performance, and it is possible that this sleepiness is related to the condition of the eyes.
Topic 3: People in their 40s and older should be careful! The longer the device viewing time, the higher the 'Eye Age'!
- The average 'Eye Age' measured at the Expo venue was 43.8 years old, which was lower than the average actual age (45.5 years old).
- When examining the gap between Eye Age and actual age and the time spent viewing digital devices such as PCs and smartphones, it was confirmed that the longer the digital viewing time, the higher the 'Eye Age' tended to be. This tendency was prominent among middle-aged and older people in their 40s to 60s.
Topic 4: Are all modern people suffering from tired eyes!? Over 40% have severe eye fatigue.
- The average tired eye score of visitors was 64 points. Those with 60 points or more exceeded 60%, and further, those with 80 points or more accounted for 40%. It was observed that those with 80 points or more tended to strongly feel 'digital damage', 'heavy eyelids', and 'daytime sleepiness', despite no difference in monitor viewing time.
- About 25% of those with a tired eye score of 80 points or more did not feel any subjective symptoms. This suggested that even if the person is unaware, there is a possibility that 1 in 4 people actually have tired eyes.
Topic 5: Correlation between Eye Age and skin youthfulness! 40% have young skin but a high 'Eye' age.
- A correlation was found between Eye Age and skin youthfulness. In addition, looking at the individual items of Eye Age and skin score, it was confirmed that 'eye bags' and 'wrinkles' are correlated with Eye Age.
- As many as 40% of people have a skin score that is young, but their 'Eye' age is higher than their actual age. A comparative analysis of this demographic confirmed that many of them feel sleepy during the day (TOP2 difference: 6.0pt) and their monitor viewing time is long (TOP2 difference: 12.3pt). Even if your skin is young, do not let your guard down. You might be losing out because of your 'eyes'. It suggested a disparity in 'Eye Age' that monitor viewing time can bring.