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Rihana
07/06/2023
Biology
GCSE biology - the eye
The eye anatomy and function is a complex system that enables vision through specialized components working together.
07/06/2023
130
The eye's focusing mechanism involves complex interactions between various structures. For nearby objects, the lens becomes thicker through ciliary muscle contraction, while for distant objects, the lens becomes thinner as suspensory ligaments become taut.
Highlight: Vision disorders can be effectively corrected with appropriate lenses:
Definition: Correcting myopia hyperopia lenses involves using convex lenses for hyperopia and concave lenses for myopia.
Vocabulary: Suspensory ligaments can become either taut or slack, but unlike muscles, they don't contract or relax.
Example: In myopia correction, concave lenses help redirect light rays to focus precisely on the retina rather than in front of it.
The eye's focusing mechanism involves complex interactions between various structures. For nearby objects, the ciliary muscles contract inward, while for distant objects, the suspensory ligaments become taut to thin the lens.
Highlight: When discussing suspensory ligaments, use "slacken" or "become taut" rather than "contract" or "relax" as they are not muscles.
Vision problems can occur when the eye's focusing system doesn't work properly. Correcting myopia and hyperopia requires different approaches:
Definition: Hyperopia occurs when the lens is too thin, causing light to refract behind the retina. Convex lenses help correct this condition.
Definition: Myopia results from an overly round lens that refracts light too much, creating an image in front of the retina. Concave lenses provide correction.
6
90
11
The Nervous System, Brain and Eyes
Notes from pages 66-71 from CGP AQA 9-1 biology
3
552
10/11
B10 - The Human Nervous System
AQA GCSE Revision notes
14
824
10/11
HOMEOSTASIS AND RESPONSE
NOTES
26
1124
10/11
The Eye - GCSE AQA Biology Notes / Higher
GCSE Higher AQA 9-1 Biology Triple science notes
6
283
10
structure of the eye
coordination > the eye > structure of the eye : includes: labelled + evaluated diagram of the eye
9
168
10/11
The Eye and its Functions - GCSE
Notes including eye diagram with labels and functions of each eye part - valid for any GCSE exam board
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The eye anatomy and function is a complex system that enables vision through specialized components working together.
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The eye's focusing mechanism involves complex interactions between various structures. For nearby objects, the lens becomes thicker through ciliary muscle contraction, while for distant objects, the lens becomes thinner as suspensory ligaments become taut.
Highlight: Vision disorders can be effectively corrected with appropriate lenses:
Definition: Correcting myopia hyperopia lenses involves using convex lenses for hyperopia and concave lenses for myopia.
Vocabulary: Suspensory ligaments can become either taut or slack, but unlike muscles, they don't contract or relax.
Example: In myopia correction, concave lenses help redirect light rays to focus precisely on the retina rather than in front of it.
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The eye's focusing mechanism involves complex interactions between various structures. For nearby objects, the ciliary muscles contract inward, while for distant objects, the suspensory ligaments become taut to thin the lens.
Highlight: When discussing suspensory ligaments, use "slacken" or "become taut" rather than "contract" or "relax" as they are not muscles.
Vision problems can occur when the eye's focusing system doesn't work properly. Correcting myopia and hyperopia requires different approaches:
Definition: Hyperopia occurs when the lens is too thin, causing light to refract behind the retina. Convex lenses help correct this condition.
Definition: Myopia results from an overly round lens that refracts light too much, creating an image in front of the retina. Concave lenses provide correction.
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The eye's fundamental components work together to enable vision. The cornea serves as a transparent front layer that reflects light and receives oxygen through diffusion from the air. The retina contains the fovea, a specialized area where light must be reflected for optimal vision.
Vision cells in the eye include cones and rods, which are concentrated in the fovea and retina. These cells serve different purposes - cones enable color vision but struggle in low light, while rods excel in dim conditions but only detect black and white.
Definition: The iris reflex is a protective mechanism that controls pupil size to regulate light entry and protect the retina.
Vocabulary: Accommodation refers to the process where the lens changes shape to focus on objects at different distances.
Example: In low light conditions, the pupil dilates through the relaxation of circular muscles and contraction of radial muscles.
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Paul T
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
