This document discusses computer vision syndrome and blue light exposure from digital devices. It notes that prolonged screen time can cause eye strain, headaches, and dry eyes due to accommodative and convergence demands. Blue light is linked to eye fatigue, dryness, and potential retinal damage over time. However, blue light is also important for circadian rhythms. The document recommends taking breaks, using glasses to block blue light, staying hydrated, and consuming bilberry which contains antioxidants that may protect against blue light damage. Maintaining good posture and having regular eye exams can also help prevent computer vision syndrome.

1. Maintain our healthy vision in
new Normal
dr. F.A. Timmy Budi Y, SpM

2. Past vs Present

3. New Normal

4. New Normal

5. New Normal

6. New Normal

7. Agenda
Computer Vision Syndrome
1
Blue light :Effect & Prevention
2
3
Summary
4
Antioxidant

8. Computer
Vision
Syndrome
Digital Eye Strain
a group of eye– and vision–related problems
that result from prolonged computer, tablet,
e-reader and cell phone use
(VDT : Visual Display Terminal)
American Optometrist Assosiation (2013)

9. frequent saccadic eye movements
(ocular motility)
accommodation (continuous
focusing)
vergence (alignment demands)
visual work in a computer

10. What are the symptoms of
digital eye strain?
Gejala Yang dirasakan penyebab
Astenopia Eye strain, sore eyes, tired eyes Binocular & refraction anomaly
Occular surface related Dry eyes, watery, irritasted eyes Blink frequensy
visual Blurr, diplopia, transient blindness Binocular & refraction anomaly
Bleaching of photopigment
Extra occular problem Neck, shouder, back pain ergonomic

11. Contributing
Factor of CVS

12. Prevention
Management of CVS

13. Blue light - effects
If excess
Induced
Myopia?
Dry Eye
Cataract
Retina Cell
Damage
Reduce
Melatonin

14. ↑ ROS → Decreases cellular viability;
affects cellular morphology; increases
inflammation; alters mitochondrial
membrane potential; oxidative stress
inflammatory factors in the
cornea and tear film, decrease
cell viability, and cause dry eye
Blue light – effects on CORNEA

15. contains structural proteins, enzymes, and protein
metabolites that absorb short wave light→ decrease in
transparency or color change
ROS in the mitochondria of lens epithelial cells
(hLECs), which may lead to the development of
cataracts
Blue light – effects on LENS

16. Blue light – effects on RETINA

17. sunlight is much richer in
short-wavelength light →
retinal dopamine release
reduction in
astigmatism during
development
Blue light – effects on
REFRACTIVE DEVELOPMENT

18. The development of myopia
Near working
•2019: the journal of the
AAO—offers more
evidence that at least part
of the worldwide increase
in nearsightedness has to
do with near work
activities
• The study also found that
spending time outdoors—
especially in early
childhood—can slow the
progression of
nearsightedness

19. Perifer passive
Central
active
Perifer active
Central
active

20. D
D
Blue light – effects on
CIRCARDIAN RHYTHM

21. Blue light – effects on
CIRCARDIAN RHYTHM

22. Prevention of blue light - induce injur
y
use yoursmartphonesmartly
1-2-10 Rule
1 ft for
handphone or
book
2 ft for
PC/Laptop
10 ft for TV
20 – 20 – 20 Rule

23. Get a comprehensive eye exam →
glasses, contact lens, Consider
computer glasses
Computer glasses Blue filter glasses
Spectacle for magnifying (intermedi
ate glasses)
The lens has a blue cut filter
To prevent eye strain To fliter blue light
With Power (diopter) Usually without
Prevention of blue light - induce injur
y
Blue Light Glasses

24. Computer glasses are prescription
glasses that are designed to wear
when doing computer work.
40 y.o : +0.75 D
50-60 y.o : +1.00-+1.50D
> 60 y.o: +1.75D
Prevention of blue light - induce injur
y

25. Artificial tear →
used to lubricate
dry eyes and
help maintain
moisture on the
outer surface of
your eyes
Composition
• Cellulose derivate (CMC, HPMC) : mucin & lipid deficiency
• Polyols, Gyserol : increase retention time, protect corneal surface
• Dextran 70 : reduce evaporation
• Na-hialuronat : high water retaining property
• Polyvinyl alcohol : early lumbricant
Prevention of blue light - induce injur
y
Treat
dry
eye

26. use of antioxidants
Prevention of blue light - induce injur
y

29. Bilberry Anthocyanins “Antioxidant”
❑ against blue LED light induced photoreceptor cell
damage and ROS generation
❑ anthocyanidins scavenge superoxide anion radicals
and hydroxyl radicals

30. Bilberry Anthocyanins “Antioxidant”
❑ Antioxidant content → ORAC (Oxygen Radical
Absorbance Capacity) scale.
❑ highest for spices and berries & lower for highly
processed grains
❑ Men ► about 11,000 ORAC units.
❑ Women ► about 8,000 units

31. Bilberry Anthocyanins “Antioxidant”
✓a cup of blueberries,
✓some dark leafy greens in your salad
✓a good dose of oregano in your spaghetti sauce
► over 20,000 ORAC

32. Summary
necessary to take appropriate protective
measures when using blue light-related
products, especially at night
bilberry containing anthocyanidins “Antioxidant”
→ protective effects against blue LED light effect

33. References
1. Alemayehu, Abiy Maru and Alemayehu, Mogess Maru, 2019, Pathophysiologic Mechanisms of Computer
Vision Syndrome and its Prevention: Review, World Journal of Ophthalmology & Vision Research, 10.33
552/WJOVR.2019.02.000547
2. Ann Regina Lurati, DNP, 2018, Computer Vision Syndrome Implications for the Occupational Health Nurs
e, Workplace Health & Safety, California State University, Monterey Bay
3. Rozanna Fithri, Nadhiva, Mulyono, 2020, The Relation between Symptoms of Computer Vision Syndrom
e and Visual Display Terminal Utilization, Department of Occupational Safety and Health, Faculty of Publi
c Health, Universitas Airlangga Campus C Mulyorejo, Surabaya, The Indonesian Journal of Occupational
Safety and Health, Volume 9, Issue 3, December 2020: 328-337
4. Pharm.D Interns,2021, Impact of Digitalization in the Eye Strain during Covid-19 Lockdown Period: An E
pidemiological Study, Nirmala College of Pharmacy, Muvattupuzha, Kerala, Journal of Drug Delivery & Th
erapeutics. 2021; 11(1-s):7-14
5. Zhi-Chun Zhao1,2, Ying Zhou2 , Gang Tan2 , Juan Li1, Research progress about the effect and preventi
on of blue light on eyes, Int J Ophthalmol, Vol. 11, No. 12, Dec.18, 2018