TED: The science of preserving sight | Joshua Chu-Tan

The video discusses the importance of vision and the impact of age-related macular degeneration (AMD), a leading cause of blindness. It explains the anatomy of the retina, the complexity of AMD, and the challenges in treating it. The central dogma of genetics is introduced, highlighting the roles of DNA, RNA, and proteins. The potential of micro RNA, particularly micro RNA 124, in regulating gene expression and offering new therapeutic avenues for AMD is explored. The video concludes by emphasizing the importance of quality of life and the hope for clearer vision through micro RNA research.

What is the leading cause of blindness in the developed world?

• Age-related macular degeneration

• Cataracts

• Diabetic retinopathy

• Glaucoma

Which part of the eye is primarily responsible for our central vision?

• Lens

• Macula

• Cornea

• Optic nerve

What is the role of photoreceptors in the eye?

• To protect the eye from dust

• To focus light onto the retina

• To absorb light and convert it into electrical signals

• To produce tears

What is the central dogma of genetics?

• DNA makes protein, protein makes RNA

• Protein makes RNA, RNA makes DNA

• DNA makes RNA, RNA makes protein

• RNA makes DNA, DNA makes protein

How do micro RNA molecules function in gene regulation?

• They block RNA from being read, preventing protein production

• They enhance the production of proteins

• They repair damaged DNA

• They convert DNA into RNA

What is the significance of micro RNA 124 in the retina?

• It enhances color vision

• It plays an anti-inflammatory role

• It is responsible for night vision

• It causes photoreceptor cell death

What was observed in AMD patients regarding micro RNA 124?

• It was overproduced

• It was completely absent from the central retina

• It caused increased inflammation

• It was highly active

What was the result of supplementing micro RNA 124 in animal studies?

• No change in retinal health

• Improved retinal function and reduced inflammation

• Increased photoreceptor cell death

• Increased inflammation

What is the ultimate goal of using micro RNA in AMD treatment?

• To extend the lifespan of patients

• To enhance color perception

• To improve the quality of life by preserving vision

• To completely cure AMD

What does the speaker emphasize as more important than longevity?

• Fame

• Quality of life

• Physical strength

• Wealth