Sunday, May 24, 2026

Spinach Eye Drops May Treat Common Vision Condition

Scientists have adapted photosynthesis, the process plants use to survive, for human eyes. This new research, led by the National University of Singapore, could help treat dry eye syndrome, which affects over a billion people worldwide.

The team used photosynthetic membranes from spinach leaves. They applied these membranes through eye drops to lab-grown human eye cells and mice with a similar condition to dry eye syndrome. This method worked well. When light shone on the cells, they began producing NADPH. NADPH is a chemical that helps protect cells from damage.

This discovery could reduce the pain and irritation caused by dry eyes. The researchers call their new technology LEAF, which stands for light-reaction enriched thylakoid NADPH-foundry. Thylakoids are structures in plant cells that carry out photosynthesis.

In tests, LEAF treatment reduced harmful substances in tears from patients with dry eye syndrome. In mice, it performed better than Restasis, a common medication for the condition. Restasis can be expensive and cause side effects, making this new treatment appealing.

The researchers plan to begin clinical trials soon. They also hope to explore whether LEAF can help with other inflammatory conditions that need protection against harmful substances when light is present.

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Vocabulary List:
6 words · tap to reveal
ON

Accent

photosynthesis/ˌfoʊtəˈsɪnθəsɪs/noun
how plants make food using sunlight

adapted/əˈdæptɪd/verb
changed to work for a different use

membranes/ˈmɛmˌbreɪnz/noun
thin layers that cover or protect cells

NADPH/ˌɛn.eɪ.diːˈpiː.eɪtʃ/noun
a chemical cells use to help stop damage

thylakoids/ˈθaɪləˌkɔɪdz/noun
small parts inside plant cells for photosynthesis

inflammatory/ɪnˈflæməˌtɔri/adjective
causing swelling, pain, or redness in the body

How much do you know?

What process have scientists adapted for human eyes?
Respiration
Photosynthesis
Transpiration
Fermentation
Which university conducted the research on adapting photosynthesis?
Harvard University
National University of Singapore
Stanford University
MIT
What molecule do the cells produce when light is shone on them?
ATP
NADPH
Oxygen
Carbon Dioxide
What does LEAF stand for?
Light-enhanced agricultural function
Light-reaction enriched thylakoid NADPH-foundry
Light-energy adaptive fluid
Light-reaction enriched agricultural formula
What is the primary benefit of the LEAF treatment?
It is cheaper than Restasis
It reduces harmful substances in tears
It eliminates dry eye syndrome
It improves night vision
Which medication is mentioned as a common treatment for dry eye syndrome?
Nexium
Aleve
Restasis
Advil
LEAF technology is based on the process of respiration.
More than a billion people worldwide are affected by dry eye syndrome.
The team applied photosynthetic membranes from lettuce leaves.
LEAF treatment performed better than Restasis in mice trials.
NADPH helps protect cells from damage.
The researchers plan to begin clinical trials for LEAF technology soon.
The process that plants use to survive is called .
Over a billion people worldwide are affected by eye syndrome.
The team used photosynthetic membranes from leaves.
LEAF stands for light-reaction enriched thylakoid -foundry.
Restasis is a common medication for dry eye .
The researchers hope to explore whether LEAF can help with other inflammatory .
This question is required

Test Your Understanding

Start Quiz
Vocabulary List:
6 words · tap to reveal
ON
Accent
photosynthesis/ˌfoʊtəˈsɪnθəsɪs/noun
how plants make food using sunlight
adapted/əˈdæptɪd/verb
changed to work for a different use
membranes/ˈmɛmˌbreɪnz/noun
thin layers that cover or protect cells
NADPH/ˌɛn.eɪ.diːˈpiː.eɪtʃ/noun
a chemical cells use to help stop damage
thylakoids/ˈθaɪləˌkɔɪdz/noun
small parts inside plant cells for photosynthesis
inflammatory/ɪnˈflæməˌtɔri/adjective
causing swelling, pain, or redness in the body

How much do you know?

What process have scientists adapted for human eyes?
Respiration
Photosynthesis
Transpiration
Fermentation
Which university conducted the research on adapting photosynthesis?
Harvard University
National University of Singapore
Stanford University
MIT
What molecule do the cells produce when light is shone on them?
ATP
NADPH
Oxygen
Carbon Dioxide
What does LEAF stand for?
Light-enhanced agricultural function
Light-reaction enriched thylakoid NADPH-foundry
Light-energy adaptive fluid
Light-reaction enriched agricultural formula
What is the primary benefit of the LEAF treatment?
It is cheaper than Restasis
It reduces harmful substances in tears
It eliminates dry eye syndrome
It improves night vision
Which medication is mentioned as a common treatment for dry eye syndrome?
Nexium
Aleve
Restasis
Advil
LEAF technology is based on the process of respiration.
More than a billion people worldwide are affected by dry eye syndrome.
The team applied photosynthetic membranes from lettuce leaves.
LEAF treatment performed better than Restasis in mice trials.
NADPH helps protect cells from damage.
The researchers plan to begin clinical trials for LEAF technology soon.
The process that plants use to survive is called .
Over a billion people worldwide are affected by eye syndrome.
The team used photosynthetic membranes from leaves.
LEAF stands for light-reaction enriched thylakoid -foundry.
Restasis is a common medication for dry eye .
The researchers hope to explore whether LEAF can help with other inflammatory .
This question is required

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