SlideShare a Scribd company logo
Power of Accommodation

Presented
by,
Modify the
curvature to
some extent

Composed of a
fibrous, jelly-like
material

Lens

Ciliary
muscles
Ciliary
muscles

Modify the
curvature to some
extent

Change in
curvature

Change its
focal length
Distant vision
Ciliary muscles
are relaxed

Ciliary
muscles
are
relaxed

Lens
becomes
thin

Focal
length
increases

Enables us
to see
distant
objects
clearly
Close vision
What is
accommodation?
The ability of the eye lens
to adjust its focal length is
called accommodation
However, the focal length of
the eye lens cannot be
decreased below a certain
minimum limit.
Near point of the eye

Far point of the eye

The minimum distance, at
which objects can be seen most
distinctly without strain, is
called the least distance of
distinct vision. It is also called
the near point of the eye.

The farthest point
upto which the eye
can see objects
clearly is called the
far point of the eye.

For a young adult with normal
vision, the near point is about
25 cm.

It is infinity for a
normal eye.

Therefore, a normal eye can see objects clearly that are between 25 cm
and infinity.
Cataract
The crystalline lens
becomes milky and
cloudy (at old age).

This condition is called cataract.
This causes partial or complete loss
of vision. It is possible to restore
vision through a cataract surgery.
Why do we have two eyes
for vision and not just one?
Why do we have two eyes for
vision and not just one?
It gives a wider field of view. A human being has a

horizontal field of view of about 150° with one eye
and of about 180° with two eyes. The ability to detect
faint objects is, of course, enhanced with two detectors
instead of one.
Some animals, usually

prey animals, have
their two eyes
positioned on
opposite sides of
their heads to give
the widest possible
field of view.
Stereopsis is the
impression of depth
that is perceived when
a scene is viewed with
both eyes
Thank you 

More Related Content

What's hot

Musculofacial anomalies & Ocular Myopathies
Musculofacial anomalies & Ocular MyopathiesMusculofacial anomalies & Ocular Myopathies
Musculofacial anomalies & Ocular Myopathies
Devanshu Arora
 
Magnification
MagnificationMagnification
Magnification
Hossein Mirzaie
 
The Prism
The PrismThe Prism
The Prism
shwetalib
 
Telescopes
TelescopesTelescopes
Telescopes
Hossein Mirzaie
 
Vergences of the eye
Vergences of the eyeVergences of the eye
Vergences of the eye
Tukezban Huseynova, MD
 
Hess screen test mhr
Hess screen test mhrHess screen test mhr
Hess screen test mhr
Mehedi Hasan
 
Visual acuity charts
Visual acuity chartsVisual acuity charts
Visual acuity charts
ShrutiDagar1
 
lens gauge.pptx
lens gauge.pptxlens gauge.pptx
Refraction using a phoropter
Refraction using a phoropterRefraction using a phoropter
Refraction using a phoropter
SSSIHMS-PG
 
Techniques of retinoscopy
Techniques of retinoscopyTechniques of retinoscopy
Techniques of retinoscopy
Iqra Nehal
 
Recent advances in low vision aids
Recent advances in low vision aids Recent advances in low vision aids
Recent advances in low vision aids
Krishnamurthy Ilango
 
Spherical lenses
Spherical lensesSpherical lenses
Spherical lenses
Mohmmad Dmour , MD
 
Accommodation
Accommodation Accommodation
Accommodation
OPTOM FASLU MUHAMMED
 
Spherical lens
Spherical  lensSpherical  lens
Spherical lens
OPTOM FASLU MUHAMMED
 
Fundus camera - Medical Equipment
Fundus camera - Medical EquipmentFundus camera - Medical Equipment
Fundus camera - Medical Equipment
AtheenaPandian Enterprises
 
Astigmatic lens
Astigmatic lensAstigmatic lens
Astigmatic lens
OPTOM FASLU MUHAMMED
 
Ocl photography
Ocl photographyOcl photography
Visual performance evaluation
Visual performance evaluationVisual performance evaluation
Visual performance evaluation
Persis Benetta
 
Special purpose frames
Special purpose framesSpecial purpose frames
Special purpose frames
Eyenirvaan
 
Optics of eye
Optics of eyeOptics of eye
Optics of eye
Sachitanand Singh
 

What's hot (20)

Musculofacial anomalies & Ocular Myopathies
Musculofacial anomalies & Ocular MyopathiesMusculofacial anomalies & Ocular Myopathies
Musculofacial anomalies & Ocular Myopathies
 
Magnification
MagnificationMagnification
Magnification
 
The Prism
The PrismThe Prism
The Prism
 
Telescopes
TelescopesTelescopes
Telescopes
 
Vergences of the eye
Vergences of the eyeVergences of the eye
Vergences of the eye
 
Hess screen test mhr
Hess screen test mhrHess screen test mhr
Hess screen test mhr
 
Visual acuity charts
Visual acuity chartsVisual acuity charts
Visual acuity charts
 
lens gauge.pptx
lens gauge.pptxlens gauge.pptx
lens gauge.pptx
 
Refraction using a phoropter
Refraction using a phoropterRefraction using a phoropter
Refraction using a phoropter
 
Techniques of retinoscopy
Techniques of retinoscopyTechniques of retinoscopy
Techniques of retinoscopy
 
Recent advances in low vision aids
Recent advances in low vision aids Recent advances in low vision aids
Recent advances in low vision aids
 
Spherical lenses
Spherical lensesSpherical lenses
Spherical lenses
 
Accommodation
Accommodation Accommodation
Accommodation
 
Spherical lens
Spherical  lensSpherical  lens
Spherical lens
 
Fundus camera - Medical Equipment
Fundus camera - Medical EquipmentFundus camera - Medical Equipment
Fundus camera - Medical Equipment
 
Astigmatic lens
Astigmatic lensAstigmatic lens
Astigmatic lens
 
Ocl photography
Ocl photographyOcl photography
Ocl photography
 
Visual performance evaluation
Visual performance evaluationVisual performance evaluation
Visual performance evaluation
 
Special purpose frames
Special purpose framesSpecial purpose frames
Special purpose frames
 
Optics of eye
Optics of eyeOptics of eye
Optics of eye
 

Viewers also liked

Accommodation of eye
Accommodation of eye Accommodation of eye
Accommodation of eye
Rohit Rao
 
Anomalies of accomodation ‫‬
Anomalies of accomodation ‫‬Anomalies of accomodation ‫‬
Anomalies of accomodation ‫‬
Ayat AbuJazar
 
Accommodation
AccommodationAccommodation
Accommodation
Laxmi Eye Institute
 
Annual report 2009 taj agro international taj group
Annual report 2009 taj agro international   taj groupAnnual report 2009 taj agro international   taj group
Annual report 2009 taj agro international taj group
Shantanu Singh
 
20110828
2011082820110828
Optometria y contactologia (II)
Optometria y contactologia (II)Optometria y contactologia (II)
Optometria y contactologia (II)
milaoptica
 
Amo presbyopia training course
Amo presbyopia training courseAmo presbyopia training course
Amo presbyopia training course
Jitander Dudee
 
Opd 15
Opd 15Opd 15
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore VisionOPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
Healthegy
 
Vane
VaneVane
Vicios de refracción expo luis
Vicios de refracción expo luisVicios de refracción expo luis
Vicios de refracción expo luis
Dr. jorge luis Gutiérrez medicina.
 
Presbicia
PresbiciaPresbicia
Presbicia
Vianka Fatima
 
LASER BLENDED VISION PRESBICIE.
LASER BLENDED VISION PRESBICIE.LASER BLENDED VISION PRESBICIE.
LASER BLENDED VISION PRESBICIE.
Ivan Alberto Unda Velarde
 
Global Blindness: Managing presbyopia
Global Blindness: Managing presbyopiaGlobal Blindness: Managing presbyopia
Hipermetropia y Plesbicia: Manejo Quirurgico
Hipermetropia y Plesbicia: Manejo QuirurgicoHipermetropia y Plesbicia: Manejo Quirurgico
Hipermetropia y Plesbicia: Manejo Quirurgico
Rodrigo Donoso
 
Presbicia
PresbiciaPresbicia
Presbicia
anorjuela2
 
6. acomodación y presbicia
6. acomodación y presbicia6. acomodación y presbicia
6. acomodación y presbicia
Marvin Barahona
 
LA PRESBICIA (OFTALMOLOGÍA)
LA PRESBICIA (OFTALMOLOGÍA)LA PRESBICIA (OFTALMOLOGÍA)
LA PRESBICIA (OFTALMOLOGÍA)
Juan Parra Aguilera
 
Revision Optics
Revision OpticsRevision Optics
Revision Optics
Healthegy
 
Alcon Google Innovation
Alcon Google InnovationAlcon Google Innovation
Alcon Google Innovation
Healthegy
 

Viewers also liked (20)

Accommodation of eye
Accommodation of eye Accommodation of eye
Accommodation of eye
 
Anomalies of accomodation ‫‬
Anomalies of accomodation ‫‬Anomalies of accomodation ‫‬
Anomalies of accomodation ‫‬
 
Accommodation
AccommodationAccommodation
Accommodation
 
Annual report 2009 taj agro international taj group
Annual report 2009 taj agro international   taj groupAnnual report 2009 taj agro international   taj group
Annual report 2009 taj agro international taj group
 
20110828
2011082820110828
20110828
 
Optometria y contactologia (II)
Optometria y contactologia (II)Optometria y contactologia (II)
Optometria y contactologia (II)
 
Amo presbyopia training course
Amo presbyopia training courseAmo presbyopia training course
Amo presbyopia training course
 
Opd 15
Opd 15Opd 15
Opd 15
 
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore VisionOPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
OPHTHALMOLOGY INNOVATION SHOWCASE - Encore Vision
 
Vane
VaneVane
Vane
 
Vicios de refracción expo luis
Vicios de refracción expo luisVicios de refracción expo luis
Vicios de refracción expo luis
 
Presbicia
PresbiciaPresbicia
Presbicia
 
LASER BLENDED VISION PRESBICIE.
LASER BLENDED VISION PRESBICIE.LASER BLENDED VISION PRESBICIE.
LASER BLENDED VISION PRESBICIE.
 
Global Blindness: Managing presbyopia
Global Blindness: Managing presbyopiaGlobal Blindness: Managing presbyopia
Global Blindness: Managing presbyopia
 
Hipermetropia y Plesbicia: Manejo Quirurgico
Hipermetropia y Plesbicia: Manejo QuirurgicoHipermetropia y Plesbicia: Manejo Quirurgico
Hipermetropia y Plesbicia: Manejo Quirurgico
 
Presbicia
PresbiciaPresbicia
Presbicia
 
6. acomodación y presbicia
6. acomodación y presbicia6. acomodación y presbicia
6. acomodación y presbicia
 
LA PRESBICIA (OFTALMOLOGÍA)
LA PRESBICIA (OFTALMOLOGÍA)LA PRESBICIA (OFTALMOLOGÍA)
LA PRESBICIA (OFTALMOLOGÍA)
 
Revision Optics
Revision OpticsRevision Optics
Revision Optics
 
Alcon Google Innovation
Alcon Google InnovationAlcon Google Innovation
Alcon Google Innovation
 

Similar to Power of Accommodation- Human Eye

The Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
The Human Eye and The Colourful World PPT-Mod-1(10TH).pdfThe Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
The Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
LipikaAcharya3
 
Human eye
Human eyeHuman eye
Human eye
Adityaroy110
 
Physics
PhysicsPhysics
Physics
Divyank Gupta
 
Human eye and colourful world
Human eye and colourful worldHuman eye and colourful world
Human eye and colourful world
ShivakumarHP
 
Defect of vision
Defect of visionDefect of vision
Defect of vision
Harsh10110
 
Human eye class 10
Human eye class 10Human eye class 10
Human eye class 10
Sandip Chakraborty
 
Amazing Human Eye
Amazing Human EyeAmazing Human Eye
Amazing Human Eye
7Active Medical Media
 
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfnzfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
noobadesh8
 
94955904-HUMAN-EYE-PRESENTATION.pptx human eye
94955904-HUMAN-EYE-PRESENTATION.pptx human eye94955904-HUMAN-EYE-PRESENTATION.pptx human eye
94955904-HUMAN-EYE-PRESENTATION.pptx human eye
harshitbansal289500
 
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
SmitKhakhkhar1
 
Chapter 11 Human Eye and Colourful World (2).pptx
Chapter 11 Human Eye and Colourful World (2).pptxChapter 11 Human Eye and Colourful World (2).pptx
Chapter 11 Human Eye and Colourful World (2).pptx
AsmitaPandey48
 
presentation_human_eye_.pptx
presentation_human_eye_.pptxpresentation_human_eye_.pptx
presentation_human_eye_.pptx
AnilKumar749909
 
Demo on Human Eye and their parts and detail
Demo on Human Eye and their parts and detailDemo on Human Eye and their parts and detail
Demo on Human Eye and their parts and detail
krashmita29
 
image forming mechanism, optical aberration
image forming mechanism, optical aberrationimage forming mechanism, optical aberration
image forming mechanism, optical aberration
shama praveen
 
HUMAN EYE AND ITS DEFECTS
HUMAN EYE AND ITS DEFECTSHUMAN EYE AND ITS DEFECTS
HUMAN EYE AND ITS DEFECTS
Irshad Hussain
 
Near point and far point of accommodation
Near point and far point of accommodationNear point and far point of accommodation
Near point and far point of accommodation
SubhamKumar95
 
Class 10 Eye and colourful world notes.pdf
Class 10 Eye and colourful world notes.pdfClass 10 Eye and colourful world notes.pdf
Class 10 Eye and colourful world notes.pdf
ankitrajak192
 
Physics human eye and colorful world/ © krazzy4™
Physics human  eye and colorful world/ © krazzy4™Physics human  eye and colorful world/ © krazzy4™
Physics human eye and colorful world/ © krazzy4™
Vishnu J Kumar
 
ACCOMODATION AND ITS ANOMALIES.pptx
ACCOMODATION AND ITS ANOMALIES.pptxACCOMODATION AND ITS ANOMALIES.pptx
ACCOMODATION AND ITS ANOMALIES.pptx
mythoskripesh
 
LIGHT HUMAN EYE [Autosaved].pptx
LIGHT HUMAN EYE [Autosaved].pptxLIGHT HUMAN EYE [Autosaved].pptx
LIGHT HUMAN EYE [Autosaved].pptx
DevikaMani3
 

Similar to Power of Accommodation- Human Eye (20)

The Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
The Human Eye and The Colourful World PPT-Mod-1(10TH).pdfThe Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
The Human Eye and The Colourful World PPT-Mod-1(10TH).pdf
 
Human eye
Human eyeHuman eye
Human eye
 
Physics
PhysicsPhysics
Physics
 
Human eye and colourful world
Human eye and colourful worldHuman eye and colourful world
Human eye and colourful world
 
Defect of vision
Defect of visionDefect of vision
Defect of vision
 
Human eye class 10
Human eye class 10Human eye class 10
Human eye class 10
 
Amazing Human Eye
Amazing Human EyeAmazing Human Eye
Amazing Human Eye
 
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfnzfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
zfsdaegvazeg.pptx human eye ihsajkfhkja hsfhsjfn
 
94955904-HUMAN-EYE-PRESENTATION.pptx human eye
94955904-HUMAN-EYE-PRESENTATION.pptx human eye94955904-HUMAN-EYE-PRESENTATION.pptx human eye
94955904-HUMAN-EYE-PRESENTATION.pptx human eye
 
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
Human eye and Colourful world | Class 10 Physics | TO BUY Contact- 7574932794
 
Chapter 11 Human Eye and Colourful World (2).pptx
Chapter 11 Human Eye and Colourful World (2).pptxChapter 11 Human Eye and Colourful World (2).pptx
Chapter 11 Human Eye and Colourful World (2).pptx
 
presentation_human_eye_.pptx
presentation_human_eye_.pptxpresentation_human_eye_.pptx
presentation_human_eye_.pptx
 
Demo on Human Eye and their parts and detail
Demo on Human Eye and their parts and detailDemo on Human Eye and their parts and detail
Demo on Human Eye and their parts and detail
 
image forming mechanism, optical aberration
image forming mechanism, optical aberrationimage forming mechanism, optical aberration
image forming mechanism, optical aberration
 
HUMAN EYE AND ITS DEFECTS
HUMAN EYE AND ITS DEFECTSHUMAN EYE AND ITS DEFECTS
HUMAN EYE AND ITS DEFECTS
 
Near point and far point of accommodation
Near point and far point of accommodationNear point and far point of accommodation
Near point and far point of accommodation
 
Class 10 Eye and colourful world notes.pdf
Class 10 Eye and colourful world notes.pdfClass 10 Eye and colourful world notes.pdf
Class 10 Eye and colourful world notes.pdf
 
Physics human eye and colorful world/ © krazzy4™
Physics human  eye and colorful world/ © krazzy4™Physics human  eye and colorful world/ © krazzy4™
Physics human eye and colorful world/ © krazzy4™
 
ACCOMODATION AND ITS ANOMALIES.pptx
ACCOMODATION AND ITS ANOMALIES.pptxACCOMODATION AND ITS ANOMALIES.pptx
ACCOMODATION AND ITS ANOMALIES.pptx
 
LIGHT HUMAN EYE [Autosaved].pptx
LIGHT HUMAN EYE [Autosaved].pptxLIGHT HUMAN EYE [Autosaved].pptx
LIGHT HUMAN EYE [Autosaved].pptx
 

More from Charmi Doshi

Effects of water pollutants
Effects of water pollutantsEffects of water pollutants
Effects of water pollutants
Charmi Doshi
 
Les Adjectifs Possessifs
Les Adjectifs PossessifsLes Adjectifs Possessifs
Les Adjectifs Possessifs
Charmi Doshi
 
Report Writing
Report WritingReport Writing
Report Writing
Charmi Doshi
 
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Charmi Doshi
 
Preventive measures of water pollution
Preventive measures of water pollutionPreventive measures of water pollution
Preventive measures of water pollution
Charmi Doshi
 
Major accidents & their prevention in rural & urban areas
Major accidents & their prevention in rural & urban areasMajor accidents & their prevention in rural & urban areas
Major accidents & their prevention in rural & urban areas
Charmi Doshi
 
Chemistry Summarizing Points
Chemistry Summarizing PointsChemistry Summarizing Points
Chemistry Summarizing Points
Charmi Doshi
 
Le Temps Imperatif
Le Temps ImperatifLe Temps Imperatif
Le Temps Imperatif
Charmi Doshi
 
Dignity & Freedom of Citizens
Dignity & Freedom of CitizensDignity & Freedom of Citizens
Dignity & Freedom of Citizens
Charmi Doshi
 
Outcomes of Democracy
Outcomes of DemocracyOutcomes of Democracy
Outcomes of Democracy
Charmi Doshi
 
Nationalism In India
Nationalism In IndiaNationalism In India
Nationalism In India
Charmi Doshi
 
History -Clothing
History -ClothingHistory -Clothing
History -Clothing
Charmi Doshi
 
La Carte Postale
La Carte PostaleLa Carte Postale
La Carte Postale
Charmi Doshi
 
Connaissez- Vous La France?
Connaissez- Vous La France?Connaissez- Vous La France?
Connaissez- Vous La France?
Charmi Doshi
 
About:Lok Sabha & Rajya Sabha
About:Lok Sabha & Rajya SabhaAbout:Lok Sabha & Rajya Sabha
About:Lok Sabha & Rajya Sabha
Charmi Doshi
 
Formal sector credit in india
Formal sector credit in indiaFormal sector credit in india
Formal sector credit in india
Charmi Doshi
 
Cities and Challenge of the Environment Questions
Cities and Challenge of the Environment QuestionsCities and Challenge of the Environment Questions
Cities and Challenge of the Environment Questions
Charmi Doshi
 

More from Charmi Doshi (20)

Effects of water pollutants
Effects of water pollutantsEffects of water pollutants
Effects of water pollutants
 
Les Adjectifs Possessifs
Les Adjectifs PossessifsLes Adjectifs Possessifs
Les Adjectifs Possessifs
 
Report Writing
Report WritingReport Writing
Report Writing
 
Pronominal Verbs
Pronominal VerbsPronominal Verbs
Pronominal Verbs
 
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Magazine of CLASS 10 A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
Preventive measures of water pollution
Preventive measures of water pollutionPreventive measures of water pollution
Preventive measures of water pollution
 
Major accidents & their prevention in rural & urban areas
Major accidents & their prevention in rural & urban areasMajor accidents & their prevention in rural & urban areas
Major accidents & their prevention in rural & urban areas
 
Chemistry Summarizing Points
Chemistry Summarizing PointsChemistry Summarizing Points
Chemistry Summarizing Points
 
Le Temps Imperatif
Le Temps ImperatifLe Temps Imperatif
Le Temps Imperatif
 
Dignity & Freedom of Citizens
Dignity & Freedom of CitizensDignity & Freedom of Citizens
Dignity & Freedom of Citizens
 
Outcomes of Democracy
Outcomes of DemocracyOutcomes of Democracy
Outcomes of Democracy
 
Nationalism In India
Nationalism In IndiaNationalism In India
Nationalism In India
 
History -Clothing
History -ClothingHistory -Clothing
History -Clothing
 
La Carte Postale
La Carte PostaleLa Carte Postale
La Carte Postale
 
Connaissez- Vous La France?
Connaissez- Vous La France?Connaissez- Vous La France?
Connaissez- Vous La France?
 
About:Lok Sabha & Rajya Sabha
About:Lok Sabha & Rajya SabhaAbout:Lok Sabha & Rajya Sabha
About:Lok Sabha & Rajya Sabha
 
Les Virelangues
Les VirelanguesLes Virelangues
Les Virelangues
 
Formal sector credit in india
Formal sector credit in indiaFormal sector credit in india
Formal sector credit in india
 
Cities and Challenge of the Environment Questions
Cities and Challenge of the Environment QuestionsCities and Challenge of the Environment Questions
Cities and Challenge of the Environment Questions
 
Arid soil
Arid soilArid soil
Arid soil
 

Recently uploaded

Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptxKesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
artenzmartenkai
 
Odoo 17 Events - Attendees List Scanning
Odoo 17 Events - Attendees List ScanningOdoo 17 Events - Attendees List Scanning
Odoo 17 Events - Attendees List Scanning
Celine George
 
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
mansk2
 
MVC Interview Questions PDF By ScholarHat
MVC Interview Questions PDF By ScholarHatMVC Interview Questions PDF By ScholarHat
MVC Interview Questions PDF By ScholarHat
Scholarhat
 
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
SSRCreations
 
View Inheritance in Odoo 17 - Odoo 17 Slides
View Inheritance in Odoo 17 - Odoo 17  SlidesView Inheritance in Odoo 17 - Odoo 17  Slides
View Inheritance in Odoo 17 - Odoo 17 Slides
Celine George
 
Introduction to Google Productivity Tools for Office and Personal Use
Introduction to Google Productivity Tools for Office and Personal UseIntroduction to Google Productivity Tools for Office and Personal Use
Introduction to Google Productivity Tools for Office and Personal Use
Excellence Foundation for South Sudan
 
C Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdfC Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdf
Scholarhat
 
A beginner’s guide to project reviews - everything you wanted to know but wer...
A beginner’s guide to project reviews - everything you wanted to know but wer...A beginner’s guide to project reviews - everything you wanted to know but wer...
A beginner’s guide to project reviews - everything you wanted to know but wer...
Association for Project Management
 
formative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.Vformative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.V
DrRavindrakshirsagar1
 
How to Manage Access Rights & User Types in Odoo 17
How to Manage Access Rights & User Types in Odoo 17How to Manage Access Rights & User Types in Odoo 17
How to Manage Access Rights & User Types in Odoo 17
Celine George
 
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
Codeavour International
 
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ..."DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
thanhluan21
 
Open Source and AI - ByWater Closing Keynote Presentation.pdf
Open Source and AI - ByWater Closing Keynote Presentation.pdfOpen Source and AI - ByWater Closing Keynote Presentation.pdf
Open Source and AI - ByWater Closing Keynote Presentation.pdf
Jessica Zairo
 
How to Add a Filter in the Odoo 17 - Odoo 17 Slides
How to Add a Filter in the Odoo 17 - Odoo 17 SlidesHow to Add a Filter in the Odoo 17 - Odoo 17 Slides
How to Add a Filter in the Odoo 17 - Odoo 17 Slides
Celine George
 
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
Alvaro Barbosa
 
The Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdfThe Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdf
luzmilaglez334
 
How to Manage Line Discount in Odoo 17 POS
How to Manage Line Discount in Odoo 17 POSHow to Manage Line Discount in Odoo 17 POS
How to Manage Line Discount in Odoo 17 POS
Celine George
 
2 Post harvest Physiology of Horticulture produce.pptx
2 Post harvest Physiology of Horticulture  produce.pptx2 Post harvest Physiology of Horticulture  produce.pptx
2 Post harvest Physiology of Horticulture produce.pptx
UmeshTimilsina1
 
JavaScript Interview Questions PDF By ScholarHat
JavaScript Interview  Questions PDF By ScholarHatJavaScript Interview  Questions PDF By ScholarHat
JavaScript Interview Questions PDF By ScholarHat
Scholarhat
 

Recently uploaded (20)

Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptxKesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
Kesadaran_Berbangsa_dan_Bernegara_Nasion.pptx
 
Odoo 17 Events - Attendees List Scanning
Odoo 17 Events - Attendees List ScanningOdoo 17 Events - Attendees List Scanning
Odoo 17 Events - Attendees List Scanning
 
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
11EHS Term 3 Week 1 Unit 1 Review: Feedback and improvementpptx
 
MVC Interview Questions PDF By ScholarHat
MVC Interview Questions PDF By ScholarHatMVC Interview Questions PDF By ScholarHat
MVC Interview Questions PDF By ScholarHat
 
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
10th Social Studies Enrichment Material (Abhyasa Deepika) EM.pdf
 
View Inheritance in Odoo 17 - Odoo 17 Slides
View Inheritance in Odoo 17 - Odoo 17  SlidesView Inheritance in Odoo 17 - Odoo 17  Slides
View Inheritance in Odoo 17 - Odoo 17 Slides
 
Introduction to Google Productivity Tools for Office and Personal Use
Introduction to Google Productivity Tools for Office and Personal UseIntroduction to Google Productivity Tools for Office and Personal Use
Introduction to Google Productivity Tools for Office and Personal Use
 
C Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdfC Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdf
 
A beginner’s guide to project reviews - everything you wanted to know but wer...
A beginner’s guide to project reviews - everything you wanted to know but wer...A beginner’s guide to project reviews - everything you wanted to know but wer...
A beginner’s guide to project reviews - everything you wanted to know but wer...
 
formative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.Vformative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.V
 
How to Manage Access Rights & User Types in Odoo 17
How to Manage Access Rights & User Types in Odoo 17How to Manage Access Rights & User Types in Odoo 17
How to Manage Access Rights & User Types in Odoo 17
 
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
Codeavour 5.0 International Impact Report - The Biggest International AI, Cod...
 
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ..."DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...
 
Open Source and AI - ByWater Closing Keynote Presentation.pdf
Open Source and AI - ByWater Closing Keynote Presentation.pdfOpen Source and AI - ByWater Closing Keynote Presentation.pdf
Open Source and AI - ByWater Closing Keynote Presentation.pdf
 
How to Add a Filter in the Odoo 17 - Odoo 17 Slides
How to Add a Filter in the Odoo 17 - Odoo 17 SlidesHow to Add a Filter in the Odoo 17 - Odoo 17 Slides
How to Add a Filter in the Odoo 17 - Odoo 17 Slides
 
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
Benchmarking Sustainability: Neurosciences and AI Tech Research in Macau - Ke...
 
The Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdfThe Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdf
 
How to Manage Line Discount in Odoo 17 POS
How to Manage Line Discount in Odoo 17 POSHow to Manage Line Discount in Odoo 17 POS
How to Manage Line Discount in Odoo 17 POS
 
2 Post harvest Physiology of Horticulture produce.pptx
2 Post harvest Physiology of Horticulture  produce.pptx2 Post harvest Physiology of Horticulture  produce.pptx
2 Post harvest Physiology of Horticulture produce.pptx
 
JavaScript Interview Questions PDF By ScholarHat
JavaScript Interview  Questions PDF By ScholarHatJavaScript Interview  Questions PDF By ScholarHat
JavaScript Interview Questions PDF By ScholarHat
 

Power of Accommodation- Human Eye

  • 2. Modify the curvature to some extent Composed of a fibrous, jelly-like material Lens Ciliary muscles
  • 3. Ciliary muscles Modify the curvature to some extent Change in curvature Change its focal length
  • 4. Distant vision Ciliary muscles are relaxed Ciliary muscles are relaxed Lens becomes thin Focal length increases Enables us to see distant objects clearly
  • 6. What is accommodation? The ability of the eye lens to adjust its focal length is called accommodation
  • 7. However, the focal length of the eye lens cannot be decreased below a certain minimum limit. Near point of the eye Far point of the eye The minimum distance, at which objects can be seen most distinctly without strain, is called the least distance of distinct vision. It is also called the near point of the eye. The farthest point upto which the eye can see objects clearly is called the far point of the eye. For a young adult with normal vision, the near point is about 25 cm. It is infinity for a normal eye. Therefore, a normal eye can see objects clearly that are between 25 cm and infinity.
  • 8. Cataract The crystalline lens becomes milky and cloudy (at old age). This condition is called cataract. This causes partial or complete loss of vision. It is possible to restore vision through a cataract surgery.
  • 9. Why do we have two eyes for vision and not just one?
  • 10. Why do we have two eyes for vision and not just one? It gives a wider field of view. A human being has a horizontal field of view of about 150° with one eye and of about 180° with two eyes. The ability to detect faint objects is, of course, enhanced with two detectors instead of one. Some animals, usually prey animals, have their two eyes positioned on opposite sides of their heads to give the widest possible field of view.
  • 11. Stereopsis is the impression of depth that is perceived when a scene is viewed with both eyes