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2m wars and welfare: britain in transition, 1906-1957
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1f industrialisation and the people: britain, c1783-1885
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1l the quest for political stability: germany, 1871-1991
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Lilly jenkinson
08/08/2023
Biology
The Eye
The human eye is a complex organ responsible for vision, with various structures working together to process light and form images. This summary explores the anatomy and function of the eye, including its key components like the cornea, lens, iris, and retina. It also covers important processes such as the pupillary light reflex and accommodation, as well as common vision problems like myopia and hyperopia along with their corrective measures.
08/08/2023
207
This page delves into the process of accommodation and common vision problems, along with their corrective measures.
Accommodation is the eye's ability to focus on objects at varying distances. For close objects, the ciliary muscles contract, relaxing the suspensory ligaments and allowing the lens to become more convex. This increases light refraction, focusing the image on the retina. For distant objects, the process reverses, with the lens becoming thinner to reduce refraction.
Definition: Myopia is a condition where close objects are clear, but distant objects appear blurry. This occurs when light rays converge too quickly before reaching the retina.
Definition: Hyperopia is a condition where distant objects are clear, but close objects appear blurry. This occurs when light rays converge behind the retina.
Corrective measures for these vision problems include:
Example: A person who is long-sighted might struggle to read a book held close to their face, but can easily see a street sign in the distance.
Other methods to improve eyesight include:
Highlight: Long-sightedness can be corrected by using convex lenses, which help focus light properly on the retina for clear near vision.
Understanding these concepts is crucial for anyone studying the physiology of eye or considering vision correction options.
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The Nervous System, Brain and Eyes
Notes from pages 66-71 from CGP AQA 9-1 biology
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10/11
B10 - The Human Nervous System
AQA GCSE Revision notes
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GCSE biology - the eye
Here is some information about the eye for GCSE AQA Biology. It includes information about: cornea, retina, fovea, cones and rods, circular and radial muscles, accommodation, as well as conditions affecting the eyes(myopia and hyperopia)
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structure of the eye
coordination > the eye > structure of the eye : includes: labelled + evaluated diagram of the eye
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2- Cells and control- GCSE Edexcel Biology
2.1- Mitosis 2.2- Growth in animals 2.3- Growth in plants 2.4- Stem Cells 2.5- The Brain 2.6- Brain and spinal chord problems 2.7 - The Nervous System 2.8- The eye 2.9 - Neurotransmission speeds
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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 human eye is a complex organ responsible for vision, with various structures working together to process light and form images. This summary explores the anatomy and function of the eye, including its key components like the cornea, lens, iris,... Show more
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This page delves into the process of accommodation and common vision problems, along with their corrective measures.
Accommodation is the eye's ability to focus on objects at varying distances. For close objects, the ciliary muscles contract, relaxing the suspensory ligaments and allowing the lens to become more convex. This increases light refraction, focusing the image on the retina. For distant objects, the process reverses, with the lens becoming thinner to reduce refraction.
Definition: Myopia is a condition where close objects are clear, but distant objects appear blurry. This occurs when light rays converge too quickly before reaching the retina.
Definition: Hyperopia is a condition where distant objects are clear, but close objects appear blurry. This occurs when light rays converge behind the retina.
Corrective measures for these vision problems include:
Example: A person who is long-sighted might struggle to read a book held close to their face, but can easily see a street sign in the distance.
Other methods to improve eyesight include:
Highlight: Long-sightedness can be corrected by using convex lenses, which help focus light properly on the retina for clear near vision.
Understanding these concepts is crucial for anyone studying the physiology of eye or considering vision correction options.
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The human eye structure and function is a marvel of biological engineering, designed to capture and process light to create visual images. This page provides an in-depth look at the various components of the eye and their roles in vision.
Key components of the eye include:
Vocabulary: Accommodation - The process by which the eye adjusts its focus for objects at different distances.
The iris and pupil work together in the pupillary light reflex, which protects the eye from damage caused by bright light. In bright conditions, circular muscles in the iris contract, reducing the pupil size. In dim light, radial muscles contract, enlarging the pupil to allow more light in.
Highlight: The pupillary light reflex is an automatic response that helps protect the delicate structures of the eye from damage caused by excessive light exposure.
An eye anatomy diagram would show how these structures are arranged and work together to enable vision. Understanding this anatomy is crucial for diagnosing and treating various eye conditions.
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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
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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
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Best app on earth! no words because it’s too good
Thomas R
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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
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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
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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
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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
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