SlideShare ist ein Scribd-Unternehmen logo
1 von 48
Gauri S Shrestha, M.Optom, FIACLE OPTICAL SYSTEM OF EYE
INTRODUCTION ,[object Object],[object Object],[object Object]
The eye and the camera ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Laws of optical image formation
Symbols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Real and virtual ,[object Object],[object Object],[object Object],[object Object]
Refraction at the spherical surface ,[object Object],[object Object],[object Object],[object Object],[object Object],n’  n n’-n l’  l   r - =
N N’ n 1 n k+1
Unequifocal system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unequifocal system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Transverse magnification, m= h’/h = L/L’
Effectivity ,[object Object],[object Object],[object Object],( ( d l 0 lx n n ) ) d lo lx
Components of the eye’s optical system ,[object Object],[object Object],[object Object],[object Object],[object Object]
Cornea ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Corneal shape ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Anterior chamber ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The iris and pupil ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pupil size and its effect ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
LENS ANATOMY
 
Lens details ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lens details ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lens detail ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
LENS OPTICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TRANSPARENCY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TRANSPARENCY ,[object Object],[object Object],[object Object]
ACCOMODATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Chromatic aberration ,[object Object]
Spherical aberration ,[object Object]
Solution for aberrations in eye ,[object Object],[object Object],[object Object]
OPTICAL CHANGES IN CATARACTOUS LENS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The retina ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The retina ,[object Object],[object Object],[object Object],[object Object],[object Object]
THE SCHEMATIC AND REDUCED EYE ,[object Object],[object Object],[object Object]
 
Optical anatomy of reduced eye
Schematic Eye and reduced eye
Schematic eye ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Entrance and exit pupil ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Entrance and exit pupil E Eo E’
The visual axis ,[object Object],[object Object],[object Object],[object Object],[object Object]
Field of vision
Blind spot ,[object Object],[object Object],[object Object],[object Object],[object Object]
Test for blind spot X
Reduced eye ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Comparison of the Gulstrand_Emsley schematic eye with the simple reduced eye ,[object Object]
The retinal image size ,[object Object],[object Object]
Object at infinity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object]

Weitere ähnliche Inhalte

Andere mochten auch

eye vs camera
eye vs cameraeye vs camera
eye vs camera
ssjames
 
Camera and Eye Comparison
Camera and Eye ComparisonCamera and Eye Comparison
Camera and Eye Comparison
guest5f2c73
 

Andere mochten auch (20)

eye vs camera
eye vs cameraeye vs camera
eye vs camera
 
Ankara tunnel - Outdoor lighting project with GE
Ankara tunnel - Outdoor lighting project with GEAnkara tunnel - Outdoor lighting project with GE
Ankara tunnel - Outdoor lighting project with GE
 
Prisms
Prisms Prisms
Prisms
 
Lighting
Lighting Lighting
Lighting
 
Ophthalmology 5th year, 4th lecture (Dr. Tara)
Ophthalmology 5th year, 4th lecture (Dr. Tara)Ophthalmology 5th year, 4th lecture (Dr. Tara)
Ophthalmology 5th year, 4th lecture (Dr. Tara)
 
Lens power measurement
Lens power measurementLens power measurement
Lens power measurement
 
Schematic eye(2)
Schematic eye(2)Schematic eye(2)
Schematic eye(2)
 
Lens
LensLens
Lens
 
kgavura unit 4
kgavura unit 4kgavura unit 4
kgavura unit 4
 
Aberrations of optical systems
Aberrations of optical systemsAberrations of optical systems
Aberrations of optical systems
 
Schematic eye and cardinal points
Schematic eye and cardinal pointsSchematic eye and cardinal points
Schematic eye and cardinal points
 
Similarities Between Your Eyes and A Camera
Similarities Between Your Eyes and A CameraSimilarities Between Your Eyes and A Camera
Similarities Between Your Eyes and A Camera
 
Anatomy of the lens
Anatomy of the lensAnatomy of the lens
Anatomy of the lens
 
Optics for ophthalmic residents
Optics for ophthalmic residentsOptics for ophthalmic residents
Optics for ophthalmic residents
 
Comparison between Human Eye and Camera
Comparison between Human Eye and CameraComparison between Human Eye and Camera
Comparison between Human Eye and Camera
 
OPTICS OF CONTACT LENSES
OPTICS OF CONTACT LENSESOPTICS OF CONTACT LENSES
OPTICS OF CONTACT LENSES
 
Progressive addition lenses presentation at www.eyenirvaan.com
Progressive addition lenses presentation at www.eyenirvaan.comProgressive addition lenses presentation at www.eyenirvaan.com
Progressive addition lenses presentation at www.eyenirvaan.com
 
Anatomy of Lens : Ophthalmology
Anatomy of Lens : Ophthalmology Anatomy of Lens : Ophthalmology
Anatomy of Lens : Ophthalmology
 
Jackson cross cylinder
Jackson cross cylinderJackson cross cylinder
Jackson cross cylinder
 
Camera and Eye Comparison
Camera and Eye ComparisonCamera and Eye Comparison
Camera and Eye Comparison
 

Ähnlich wie Optical system of eye gauri s

Visionbf 1h-fin
Visionbf 1h-finVisionbf 1h-fin
Visionbf 1h-fin
MUBOSScz
 
Retinoscopy @adi
Retinoscopy @adiRetinoscopy @adi
Retinoscopy @adi
Farhana Adi
 

Ähnlich wie Optical system of eye gauri s (20)

OPTICS OF HUMAN EYE & REFRACTIVE ERRORS
OPTICS OF HUMAN EYE & REFRACTIVE ERRORSOPTICS OF HUMAN EYE & REFRACTIVE ERRORS
OPTICS OF HUMAN EYE & REFRACTIVE ERRORS
 
Visionbf 1h-fin
Visionbf 1h-finVisionbf 1h-fin
Visionbf 1h-fin
 
Ocular structure as camera
Ocular structure as cameraOcular structure as camera
Ocular structure as camera
 
Aberrations of Lenses
Aberrations of LensesAberrations of Lenses
Aberrations of Lenses
 
Vision
VisionVision
Vision
 
Vision
VisionVision
Vision
 
Objective refraction
Objective refractionObjective refraction
Objective refraction
 
Optics of eye
Optics of eyeOptics of eye
Optics of eye
 
Retinoscope theory.pptx
Retinoscope theory.pptxRetinoscope theory.pptx
Retinoscope theory.pptx
 
Optical aberrations
Optical aberrationsOptical aberrations
Optical aberrations
 
Refractive error
Refractive errorRefractive error
Refractive error
 
Anatomy & Refraction of eye
Anatomy & Refraction of eyeAnatomy & Refraction of eye
Anatomy & Refraction of eye
 
Retinoscopy
RetinoscopyRetinoscopy
Retinoscopy
 
Refraction in different refractive errors and their Management
Refraction in different refractive errors and their ManagementRefraction in different refractive errors and their Management
Refraction in different refractive errors and their Management
 
Cardinal points,thin lenses and thick lenses
Cardinal points,thin lenses and thick lensesCardinal points,thin lenses and thick lenses
Cardinal points,thin lenses and thick lenses
 
Retinoscopy @adi
Retinoscopy @adiRetinoscopy @adi
Retinoscopy @adi
 
Retinoscopy
RetinoscopyRetinoscopy
Retinoscopy
 
Photoreception
PhotoreceptionPhotoreception
Photoreception
 
Fundus examination
Fundus examinationFundus examination
Fundus examination
 
Optics of ametropia
Optics of ametropiaOptics of ametropia
Optics of ametropia
 

Mehr von GauriSShrestha

artificial tears and viscoelastic eye medicines
artificial tears and viscoelastic eye medicinesartificial tears and viscoelastic eye medicines
artificial tears and viscoelastic eye medicines
GauriSShrestha
 
Vital dyes and stains Used in Ophthalmic Practice.pptx
Vital dyes and stains Used in Ophthalmic Practice.pptxVital dyes and stains Used in Ophthalmic Practice.pptx
Vital dyes and stains Used in Ophthalmic Practice.pptx
GauriSShrestha
 
Local Ocular Anesthetics Used in Ophthalmic Clinics
Local Ocular Anesthetics Used in Ophthalmic ClinicsLocal Ocular Anesthetics Used in Ophthalmic Clinics
Local Ocular Anesthetics Used in Ophthalmic Clinics
GauriSShrestha
 
Ocular Antihistamines and Anti-allergics
Ocular Antihistamines and Anti-allergicsOcular Antihistamines and Anti-allergics
Ocular Antihistamines and Anti-allergics
GauriSShrestha
 
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic PracticeMiotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
GauriSShrestha
 
2.0 convergence insufficiency b
2.0 convergence insufficiency b2.0 convergence insufficiency b
2.0 convergence insufficiency b
GauriSShrestha
 
Sensory evaluation of strabismus
Sensory evaluation of strabismusSensory evaluation of strabismus
Sensory evaluation of strabismus
GauriSShrestha
 
Motor evaluation of strabismus
Motor evaluation of strabismusMotor evaluation of strabismus
Motor evaluation of strabismus
GauriSShrestha
 
4.0 guidelines for prescribing glasses in children
4.0 guidelines for prescribing glasses in children4.0 guidelines for prescribing glasses in children
4.0 guidelines for prescribing glasses in children
GauriSShrestha
 
Accomodative insufficiency s
Accomodative insufficiency sAccomodative insufficiency s
Accomodative insufficiency s
GauriSShrestha
 
5.0 pediatric refraction
5.0 pediatric refraction5.0 pediatric refraction
5.0 pediatric refraction
GauriSShrestha
 

Mehr von GauriSShrestha (20)

artificial tears and viscoelastic eye medicines
artificial tears and viscoelastic eye medicinesartificial tears and viscoelastic eye medicines
artificial tears and viscoelastic eye medicines
 
Vital dyes and stains Used in Ophthalmic Practice.pptx
Vital dyes and stains Used in Ophthalmic Practice.pptxVital dyes and stains Used in Ophthalmic Practice.pptx
Vital dyes and stains Used in Ophthalmic Practice.pptx
 
Local Ocular Anesthetics Used in Ophthalmic Clinics
Local Ocular Anesthetics Used in Ophthalmic ClinicsLocal Ocular Anesthetics Used in Ophthalmic Clinics
Local Ocular Anesthetics Used in Ophthalmic Clinics
 
Ocular Antihistamines and Anti-allergics
Ocular Antihistamines and Anti-allergicsOcular Antihistamines and Anti-allergics
Ocular Antihistamines and Anti-allergics
 
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic PracticeMiotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
Miotics, Mydriatics, Cycloplegics Used in Ophthalmic Practice
 
Medicines Used for Glaucoma Management _Optom Lecture
Medicines Used for Glaucoma Management _Optom LectureMedicines Used for Glaucoma Management _Optom Lecture
Medicines Used for Glaucoma Management _Optom Lecture
 
Ocular steroids-Dexamethasone, Betamethasone, Prednisolone and Flurometholone
Ocular steroids-Dexamethasone, Betamethasone, Prednisolone and FlurometholoneOcular steroids-Dexamethasone, Betamethasone, Prednisolone and Flurometholone
Ocular steroids-Dexamethasone, Betamethasone, Prednisolone and Flurometholone
 
Ocular NSAIDs (Non-steroidal Anti-inflammatory Drugs)
Ocular NSAIDs (Non-steroidal Anti-inflammatory Drugs)Ocular NSAIDs (Non-steroidal Anti-inflammatory Drugs)
Ocular NSAIDs (Non-steroidal Anti-inflammatory Drugs)
 
Ocular anti-infective agents: Antibiotics, Antivirals and antifungals
Ocular anti-infective agents: Antibiotics, Antivirals and antifungalsOcular anti-infective agents: Antibiotics, Antivirals and antifungals
Ocular anti-infective agents: Antibiotics, Antivirals and antifungals
 
Optometry profession
Optometry  professionOptometry  profession
Optometry profession
 
2.0 convergence insufficiency b
2.0 convergence insufficiency b2.0 convergence insufficiency b
2.0 convergence insufficiency b
 
Presbyopia
PresbyopiaPresbyopia
Presbyopia
 
Sensory evaluation of strabismus
Sensory evaluation of strabismusSensory evaluation of strabismus
Sensory evaluation of strabismus
 
Sensory evaluation of strabismus
Sensory evaluation of strabismusSensory evaluation of strabismus
Sensory evaluation of strabismus
 
Motor evaluation of strabismus
Motor evaluation of strabismusMotor evaluation of strabismus
Motor evaluation of strabismus
 
4.0 guidelines for prescribing glasses in children
4.0 guidelines for prescribing glasses in children4.0 guidelines for prescribing glasses in children
4.0 guidelines for prescribing glasses in children
 
Accomodative insufficiency s
Accomodative insufficiency sAccomodative insufficiency s
Accomodative insufficiency s
 
5.0 pediatric refraction
5.0 pediatric refraction5.0 pediatric refraction
5.0 pediatric refraction
 
Refraction simplified
Refraction simplifiedRefraction simplified
Refraction simplified
 
Aniseikonia
AniseikoniaAniseikonia
Aniseikonia
 

Kürzlich hochgeladen

1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
QucHHunhnh
 
Making and Justifying Mathematical Decisions.pdf
Making and Justifying Mathematical Decisions.pdfMaking and Justifying Mathematical Decisions.pdf
Making and Justifying Mathematical Decisions.pdf
Chris Hunter
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
heathfieldcps1
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
kauryashika82
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
negromaestrong
 

Kürzlich hochgeladen (20)

This PowerPoint helps students to consider the concept of infinity.
This PowerPoint helps students to consider the concept of infinity.This PowerPoint helps students to consider the concept of infinity.
This PowerPoint helps students to consider the concept of infinity.
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
 
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptxINDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
 
Making and Justifying Mathematical Decisions.pdf
Making and Justifying Mathematical Decisions.pdfMaking and Justifying Mathematical Decisions.pdf
Making and Justifying Mathematical Decisions.pdf
 
Role Of Transgenic Animal In Target Validation-1.pptx
Role Of Transgenic Animal In Target Validation-1.pptxRole Of Transgenic Animal In Target Validation-1.pptx
Role Of Transgenic Animal In Target Validation-1.pptx
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot Graph
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
 
On National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan FellowsOn National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan Fellows
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptx
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
 
ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.
 
Web & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdfWeb & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdf
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Grant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy ConsultingGrant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy Consulting
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
 
Application orientated numerical on hev.ppt
Application orientated numerical on hev.pptApplication orientated numerical on hev.ppt
Application orientated numerical on hev.ppt
 
Asian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptxAsian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptx
 

Optical system of eye gauri s