--- title: "Meaning & Key Takeaway of: Almost all divers wear goggles or a…" description: "\"“Almost all divers wear goggles or a face-mask as without them the eyes are unable to focus underwater and everything appears blurred. This is because ..." image: "https://sms4smile.com/quotes/i/271/frances-ashcroft-159736_quote_almost-all-divers-wear-goggles-or-a-face_1696804.jpg" --- # Almost all divers wear goggles or a face-mask as without… ![“Almost all divers wear goggles or a face-mask as without them the eyes are unable to focus underwater and everything appears blurred. This is because when a light ray passes from one medium to another – in this case from air (or water) into the eye – it is bent (refracted). This property is used…” quote by Frances Ashcroft](https://sms4smile.com/quotes/i/271/frances-ashcroft-159736_quote_almost-all-divers-wear-goggles-or-a-face_1696804.jpg) [Download](https://sms4smile.com/quotes/i/271/frances-ashcroft-159736_quote_almost-all-divers-wear-goggles-or-a-face_1696804.jpg) [Open image](https://sms4smile.com/quotes/i/271/frances-ashcroft-159736_quote_almost-all-divers-wear-goggles-or-a-face_1696804.jpg) > ““Almost all divers wear goggles or a face-mask as without them the eyes are unable to focus underwater and everything appears blurred. This is because when a light ray passes from one medium to another – in this case from air (or water) into the eye – it is bent (refracted). This property is used to help focus the light rays on the layer of light-sensitive cells, known as the retina, at the back of the eye. The extent to which a light ray is bent at the surface of the eye is very much less in water than in air, which makes it impossible to focus the image on the retina. Maintaining an air space next to the eye, by wearing goggles or a face-mask, obviates the problem. But because the light rays will now be refracted by the glass/water interface of the mask, objects appear some 30 per cent larger and closer underwater than they do in air. It may be useful to remember this when listening to divers’ tales of giant sharks.”” [Frances Ashcroft](https://sms4smile.com/quotes/author/frances-ashcroft/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Goggles maintain an air space before the eye, allowing proper refraction of light underwater; they also magnify objects. **In simple terms:** Goggles keep eyes dry and focus light. Key Takeaway Wear goggles for clear underwater vision. Themes vision refraction underwater optics equipment Mood educational practical Type Glasses:1 Goggles:1 Wearing Goggles:1 Focus Underwater:1 Wear Goggles:1 Goggles Face:1 When to use this quote - snorkeling - scuba diving - underwater photography Key Concepts physics human anatomy diving safety Questions to Reflect On - Why does water affect eye focus differently than air? - How does magnification change perception underwater? A Different Perspective Goggles can fog or be uncomfortable. ★ ★ ★ ★ ★ No ratings yet [Focus Underwater](https://sms4smile.com/quotes/about/focus-underwater-1110704/) [Glasses](https://sms4smile.com/quotes/about/glasses/) [Goggles](https://sms4smile.com/quotes/about/goggles/) [Goggles Face](https://sms4smile.com/quotes/about/goggles-face-1110706/) [Wear Goggles](https://sms4smile.com/quotes/about/wear-goggles-1110705/) [Wearing Goggles](https://sms4smile.com/quotes/about/wearing-goggles-1110703/) ## Related quotes > [“Every person sees the world through lenses of his or her own design—individual goggles that alter focus and perspective as desired. For those who…](https://sms4smile.com/quotes/richelle-e-goodrich/every-person-sees-the-world-through-lenses-of-his-or-her-own-design/) [Richelle E. Goodrich](https://sms4smile.com/quotes/author/richelle-e-goodrich/) > [ In the Ridley Scott film 'The Martian' you can do that \[virtually driving car\]. 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