We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byBryant Hasler
Modified about 1 year ago
Lens Cornea Iris Optic Nerve Retina The ‘Normal’ Eye
Light is refracted (or bent) by the cornea and lens Image focuses on the retina A clear image is seen
SCATTERING OF LIGHT Cataract causes Scattering of light
Mature Cataract no light enters the eye
Central Cataract no light enters the eye
INSCISION 2.8 mm OPENING
PHACO PROBE INSERTED
13 mm 6 mm INTRAOCULAR LENS
2.8 mm OPENING
LENS FOLDED 3 mm
FOLDED LENS UNFOLDS
Extra Capsular Cataract Extraction Old or Conventional Surgery
12 mm opening made in the eye
Manually lens removed
Rigid lens inserted
PRADNYA NETHRALAYA Lens Cornea Iris Optic Nerve Retina The Normal Eye.
Label the Eye – use book pg. 618 Structure & Function: use book pgs Cornea: clear tissue that covers front of eye. Pupil: opening through.
How you See The eye & vision. How You See The eye collects light from objects and projects them on the light-sensitive portion of the eye, the retina.
Light Notes 3 THE EYE. Parts of the Eye Cornea Iris- Controls the amount of light that enters the eye Pupil- Lens- Retina- Optic Nerve- clear, protective.
Sensory System. 1B3 Sensory System OB30locate the main parts of the eye on a model or diagram and describe the function of the cornea, iris, lens, pupil,
1B3 Sensory System. 1B3 Sensory System OB30locate the main parts of the eye on a model or diagram and describe.
How to choose best eye Surgeon In India. What is Eye Eyes are the one of the most sensitive organ in your body which functions like the camera. Each part.
© Eyes and cameras – what am I? Read the descriptions and see if you can name the part of the eye or camera being described!
The Structure & Function of the Eye. How you Detect Light Visible light is the part of the electromagnetic spectrum that can be detected by your eyes.
Pupil Lens Iris Cornea Retina Optic Nerve.
Sheep Eye Dissection. Anterior External Eye Structure.
The retina is a layer of light- sensitive cells in the back of the eye.
Lesson Objectives Explain how light travels Explain how we see objects Know how shadows are formed.
Corrections. Eye worksheet 1. Choroid 2. Light-sensitive nerve cells, rods and cones or photoreceptors 3. Iris – pupil reflex 4. Sclera 5. A hole – allows.
The eye is connected to the brain via the optic nerve. Images are interpreted by the occipital lobe.
Structure of the Eye. Parts of the Eye: Cornea Parts of the Eye: Iris.
The Eyes and Vision. I. Anatomy of the Eye The eye consists of 3 layers or tunics Fibrous tunic- The eye consists of 3 layers or tunics Fibrous tunic-
BCP Ch 19 Optics Have your book available as you look through these notes. Diagrams help explain the notes.
The eye is an important sense organ. It takes light and images from the world around us and sends them as an electrical impulse to the brain. Parts: Cornea:
Modern Cataract Surgery Professor Ejaz Ansari, FRCOphth MD.
By Mr. Reece. Objects that can make their own light are ________________. luminous.
Click Dissection 101: Cow Eye Quiz #1. Name the structure indicated. #2. What is a function of this structure? Close-up view.
Construction of Human Eye –iris, pupil, cornea, aqueous humour, lens, ciliary muscle, vitreous humour, retina Focusing –seeing near object ( near point.
HCT II Eye Dissection. 1. Cut the fat around the eye.
AQUINAS DIOCESAN GRAMMAR Refraction of Light. AQUINAS DIOCESAN GRAMMAR The bending of light is called refraction. Refraction happens when light travels.
Section first # represents how far away from the chart the person can stand and still be able to read a particular line second # is how far away.
The Eye and Sight Chapter 12. Vision begins when light rays are reflected off an object and enter the eyes through the cornea, the transparent outer covering.
Year Science. Cornea Transparent outer covering of the eye It is convex in shape to allow the light that passes through it to be refracted Cornea.
EYE The eye is an extension of the brain Visit For 100’s of free powerpoints.
General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. The Eye 1.
Refractive Lens Exchange. 2 How the eye works Light rays enter the eye through the clear cornea, pupil and lens. These light rays are focused directly.
Light Wave Behaviors and Properties Chart (pg. 76)
By: Natalie Smith, Ophthalmologist. What are cataracts? Cataracts are a clouding of the lens of the eye that can impair vision. There are 4 types of cataracts:
By Nicolás Martín 6ºA The sight is the sense that lets you see things with your eyes. Your eyes can detect information of the things around you.
UNIT 1: WAVES Lesson 2 Introduction: Light. Remember… Light waves do not need a medium to travel through. What are the type of waves called that do not.
How The Eye Works Insert name/ Practice name/ Logo here if desired.
1 UCT PHY1025F: Geometric Optics Physics 1025F Geometric Optics Dr. Steve Peterson THE EYE.
The Eye The Physiology of Vision. Anatomy of the Eye.
7. Optical instruments 1) Cameras There is a certain range of distances over which objects will be in focus; this is called the depth of field of the lens.
6.2 Extending Human Vision. Distance between the lens and the screen must be correct to have a clear image = focussing Compound light microscope.
Science in Primary 4 Master Nopphadol Panyadee. A guide to the many parts of the human eye and how they function.
The eyes are undoubtedly the most sensitive and delicate organs we possess, and perhaps the most amazing. They present us with the window through which.
The Human Eye. A convex lens is the type of lens found in your eye. The lens takes light rays spreading out from objects and focuses the light, through.
1. Explain the difference between rods and cones. What happens if someone is missing a certain kind of cone? Answer: Rods work in the dark and see.
THE SIGHT. INDEX Characteristics Parts of the sight What is each part How the eye works Photos End.
Video 3c 3c.
OBJ: Given activity sheet, notes, model and image SWBAT explain how we see using our eyes and how to correct for nearsightedness and farsightedness with.
1 Lecture on eye ball For B.D.S. students only By Prof. Ansari On 11/06/08, am. Wednesday.
PREPARED BY : Marjorie L. Delatado THE EYES AND ITS PARTS.
Pg The Eyeball The Eyeball Iris: coloured part of the eye that opens and closes to let in more or less light. In the centre you find.
© 2017 SlidePlayer.com Inc. All rights reserved.