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Updated Mar 19, 2026

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Kurz- und Weitsichtigkeit: Alles was du wissen musst

Kurzsichtigkeit und Weitsichtigkeit sind häufige Sehfehler, die das Sehvermögen in... Show more

# Kurzsichtigkeit und Weitsichtigkeit

Kurzsichtigkeit:
- Medizinische Fachwort dafür ist Myopie
- Bei der Kurzsichtigkeit ist die Brechkraf

Kurzsichtigkeit und Weitsichtigkeit erklärt

Kurzsichtigkeit (Myopie) und Weitsichtigkeit (Hyperopie) sind zwei häufige Sehfehler, die das Sehvermögen auf unterschiedliche Weise beeinflussen. Bei der Kurzsichtigkeit ist die Brechkraft des Auges zu groß, was dazu führt, dass weit entfernte Gegenstände nicht scharf gesehen werden können. Das Bild entsteht vor der Netzhaut. Im Gegensatz dazu ist bei der Weitsichtigkeit die Brechkraft des Auges zu klein, wodurch Gegenstände in der Nähe nicht scharf abgebildet werden können. Hier entsteht das Bild hinter der Netzhaut.

Vocabulary: Myopie ist der medizinische Fachbegriff für Kurzsichtigkeit, während Hyperopie oder Hypermetropie die Fachbegriffe für Weitsichtigkeit sind.

Zur Korrektur dieser Sehfehler werden unterschiedliche Brillengläser verwendet:

  • Für Kurzsichtigkeit wird eine Zerstreuungslinse mit negativer Dioptrienzahl eingesetzt.
  • Bei Weitsichtigkeit kommt eine Sammellinse mit positiver Dioptrienzahl zum Einsatz.

Highlight: Kurzsichtige Menschen können nahe Gegenstände tadellos scharf sehen, haben aber Probleme mit entfernten Objekten. Weitsichtige hingegen sehen in der Ferne scharf, haben aber Schwierigkeiten beim Nahsehen.

Die Grafik auf der Seite veranschaulicht die Unterschiede zwischen Normalsichtigkeit, Kurzsichtigkeit und Weitsichtigkeit sowie deren Korrekturen durch entsprechende Linsen. Sie zeigt, wie die Brennebene bei den verschiedenen Sehfehlern verschoben ist und wie die korrigierenden Linsen das Licht so brechen, dass ein scharfes Bild auf der Netzhaut entsteht.

Example: Ein kurzsichtiger Mensch könnte beispielsweise ein Buch problemlos lesen, hätte aber Schwierigkeiten, Straßenschilder in der Ferne zu erkennen. Ein Weitsichtiger hingegen könnte die Straßenschilder gut sehen, aber Probleme beim Lesen eines Buches haben.

Diese Erklärung hilft, die Grundlagen von Kurzsichtigkeit und Weitsichtigkeit für Kinder verständlich zu machen und zeigt, wie wichtig die richtige Brille für die Korrektur dieser Sehfehler ist.



We thought you’d never ask...

What is the Knowunity AI companion?

Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.

Where can I download the Knowunity app?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Aufbau des Auges

Most popular content in Biologie

Most popular content

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5

App Store

4.7/5

Google Play

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 Knowunity AI. 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

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 Knowunity AI. 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

 

Biologie

500

Updated Mar 19, 2026

1 page

Kurz- und Weitsichtigkeit: Alles was du wissen musst

Kurzsichtigkeit und Weitsichtigkeit sind häufige Sehfehler, die das Sehvermögen in unterschiedlichen Entfernungen beeinträchtigen. Kurzsichtigkeit (Myopie) und Weitsichtigkeit (Hyperopie) haben gegensätzliche Auswirkungen auf das Sehen:

  • Bei Kurzsichtigkeit können nahe Objekte scharf gesehen werden, während entfernte unscharf erscheinen.
  • Bei Weitsichtigkeitist das... Show more

# Kurzsichtigkeit und Weitsichtigkeit

Kurzsichtigkeit:
- Medizinische Fachwort dafür ist Myopie
- Bei der Kurzsichtigkeit ist die Brechkraf

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Kurzsichtigkeit und Weitsichtigkeit erklärt

Kurzsichtigkeit (Myopie) und Weitsichtigkeit (Hyperopie) sind zwei häufige Sehfehler, die das Sehvermögen auf unterschiedliche Weise beeinflussen. Bei der Kurzsichtigkeit ist die Brechkraft des Auges zu groß, was dazu führt, dass weit entfernte Gegenstände nicht scharf gesehen werden können. Das Bild entsteht vor der Netzhaut. Im Gegensatz dazu ist bei der Weitsichtigkeit die Brechkraft des Auges zu klein, wodurch Gegenstände in der Nähe nicht scharf abgebildet werden können. Hier entsteht das Bild hinter der Netzhaut.

Vocabulary: Myopie ist der medizinische Fachbegriff für Kurzsichtigkeit, während Hyperopie oder Hypermetropie die Fachbegriffe für Weitsichtigkeit sind.

Zur Korrektur dieser Sehfehler werden unterschiedliche Brillengläser verwendet:

  • Für Kurzsichtigkeit wird eine Zerstreuungslinse mit negativer Dioptrienzahl eingesetzt.
  • Bei Weitsichtigkeit kommt eine Sammellinse mit positiver Dioptrienzahl zum Einsatz.

Highlight: Kurzsichtige Menschen können nahe Gegenstände tadellos scharf sehen, haben aber Probleme mit entfernten Objekten. Weitsichtige hingegen sehen in der Ferne scharf, haben aber Schwierigkeiten beim Nahsehen.

Die Grafik auf der Seite veranschaulicht die Unterschiede zwischen Normalsichtigkeit, Kurzsichtigkeit und Weitsichtigkeit sowie deren Korrekturen durch entsprechende Linsen. Sie zeigt, wie die Brennebene bei den verschiedenen Sehfehlern verschoben ist und wie die korrigierenden Linsen das Licht so brechen, dass ein scharfes Bild auf der Netzhaut entsteht.

Example: Ein kurzsichtiger Mensch könnte beispielsweise ein Buch problemlos lesen, hätte aber Schwierigkeiten, Straßenschilder in der Ferne zu erkennen. Ein Weitsichtiger hingegen könnte die Straßenschilder gut sehen, aber Probleme beim Lesen eines Buches haben.

Diese Erklärung hilft, die Grundlagen von Kurzsichtigkeit und Weitsichtigkeit für Kinder verständlich zu machen und zeigt, wie wichtig die richtige Brille für die Korrektur dieser Sehfehler ist.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.

Where can I download the Knowunity app?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

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Most popular content: Aufbau des Auges

Most popular content in Biologie

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Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5

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4.7/5

Google Play

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 Knowunity AI. 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

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 Knowunity AI. 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