Canadian Association of Optometrists Myopia. Myopia, or Nearsightedness is a visual condition in which near objects are seen clearly, but distant objects.

Slides:



Advertisements
Similar presentations
ASTIGMATISM. WHAT IS ASTIGMATISM? An optical defect. Vision is blurred. Inability to focus. Cause An irregular curve in the lens.
Advertisements

Accommodative and Multifocal IOLs
Laser Eye Surgery Technology LASIK. Anatomy of the eye.
Light Notes 3 THE EYE.
Falls prevention. As you get older, so do your eyes This can affect your life in many ways.
Vision after 40. Symptoms Reading is blurred Eye strain/headache Avoiding close work Holding reading materials at a distance.
January 15, 2014 Watch me! According to the National Eye Institute, about ½ of the adults in US have refractive error.
Vision and occupational health and safety. Looking after your eyes at work Visual comfort Eye protection.
Monovision for Presbyopia Insert name/ Practice name/ Logo here if desired.
Wavefront-Guided Laser Surgery. 2 How the eye works Light rays enter the eye through the clear cornea, pupil and lens. These light rays are focused directly.
Thin Lens Equation Distances of virtual images are negative & distances of real images are positive. Heights are positive if upright (above P.A.) and negative.
Homework Set 5: Due Wednesday, March, 17 From Chapter 5: P2, P8, P10, P11, From Chapter 6: P1, P2, P6, PM2,
The Camera The single-lens photographic camera is an optical instrument Components Light-tight box Converging lens Produces a real image Film behind the.
Eyes and Vision [Name of Presenter] Doctor of Optometry.
By:Khalid AlNeaimi & Ahmad al sharhan
The Human Eye. The human eye is similar to a camera!! Light enters through an opening, is focused through a lens, passes through a light-tight (dark)
Intacs Insert name/ Practice name/ Logo here if desired.
Phakic IOL. 2 How the eye works Light rays enter the eye through the clear cornea, pupil and lens. These light rays are focused directly onto the retina,
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.
Application of Lenses Lenses in Eyes
12.3 Lens Technologies and the Human Eye
VISION DEFECTS.
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.
Lesson 3 Our eyes work in a way that is similar to a camera. Like the click of a camera lens, in the blink of an eye images are formed in the process of.
The Human Eye and Vision Optics of the eye (lenses, focusing, etc.) Physiology of the eye (detection of light)
WELCOME TO VIEW OUR PROJECT ON DEFECTS OF HUMAN EYE DUE TO LIGHT.
1 UCT PHY1025F: Geometric Optics Physics 1025F Geometric Optics Dr. Steve Peterson THE EYE.
THE HUMAN EYE SUAAD MOHAMMAD ERIN OLSON Refraction and Converging Lenses.
Optometry Profession. Premedical training same as MD or any other pre-doctoral medical profession plus emphasis on more physics and statistics courses.
Incisional Procedures Insert name/ Practice name/ Logo here if desired.
Eye Conditions HCT II. Amblyopia Lazy eye (amblyopia) is decreased vision that results from abnormal visual development in infancy and early childhood.
Lesson 3 Our eyes work in a way that is similar to a camera. Like the click of a camera lens, in the blink of an eye images are formed in the process.
Refractive Errors & methods of correction M. F. Al Fayez, MD, FRCS.
How The Eye Works Insert name/ Practice name/ Logo here if desired.
OBJECTIVE IDENTIFY TYPES OF CORRECTIVE LENSES USED TO CORRECT SIGHT PROBLEMS [COS 5, SAT 10]
18.4 Seeing Light Pg
Optical Conditions in the Eye. Marmor & Ravin, 1997, p.3. Eye ball.
OPTICS AND THE EYE The Eye Parts of the Eye How the Eye Works (Normal Vision) Nearsightedness Farsightedness.
Better Health. No Hassles. [Name of Presenter] Children’s Eyes and Vision.
Hyperopia and Myopia.
Disorders of the eye. Astigmatism Myopia - nearsightedness Hyperopia - farsightedness Presbyopia Color blindness Cataracts Glaucoma Conjuctivitis.
The Eye. Cross-section of an eye muscle optic nerve aqueous humour lens pupil iris cornea ciliary muscle vitreous humour blind spot retina sclera.
Lenses. Applications of Light Refraction What are some common applications of the refraction of light? Cameras Microscopes Lenses Eyeglasses Human eye.
Conductive Keratoplasty (CK) Insert name/ Practice name/ Logo here if desired.
Task 2 : The Eye Gan Jia Jie 2A409. Short-sightedness/Myopia  It is a condition of the eye where the light that comes in does not directly focus on the.
Keloysius Mak. Non-Myopic Eye  Light converges on the retina, producing a clear and sharp image.
Chapter 2 Section 4 Seeing Light.
Vision. Normal Vision light is focused directly on the retina - can see clearly both near & far.
CATARACTS SURGICAL OPTIONS FOR CATARACTS. What Are Cataracts? Cataract is a clouding of the eye's lens. When we look at something, light rays travel into.
Children’s Eyes and Vision [Name of Presenter] Doctor of Optometry.
VISION.
Chapter 12 Review Light and Vision. Category: The Eye Give the name and function of the eye part indicated by #3 (the thin layer between #1 and #2). Choroid.
1. 2 Understand refractive errors visual acuity and how they are corrected. objective:
HUMAN EYE AND LENSES. INTRODUCTION Eye is the light-sensitive organ of vision in animals. The actual process of seeing is performed by the brain rather.
The Human Eye and Vision Optics of the eye (lenses, focusing, etc.) Physiology of the eye (detection of light)
Chapter 12 Review Light and Vision. Category: The Eye Give the name and function of the eye part indicated by #3 (the thin layer between #1 and #2). 1.
Lucy Crayton.  Myopia is the medical term for nearsightedness.  Nearsightedness means that you have trouble seeing things in the distance. They appear.
Astigmatism HCT II. Astigmatism An abnormal shape or curvature of the cornea that causes blurred vision. ◦This causes light rays to focus on multiple.
Seeing Light Chapter 2 Section 4. Vocabulary Cornea – the clear tissue that covers the front of the eye Cornea – the clear tissue that covers the front.
P3 Physics Medical applications Section a) The structure of the eye. The structure of the eye is limited to: ■ retina ■ lens ■ cornea ■ pupil /iris.
Lasers in Ophthalmology. Anatomy of eye The cornea is a transparent tissue in the front part of the eye. It is a curved spherical structure that is responsible.
The human eye and colorful world
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.
Lasik Eye Surgery. What is a Lasik Eye Surgery? How a Lasik Eye Surgery works? Why this procedure is performed? What are the risks? What is required before.
The Human Eye.
DAYAL HOSPITAL.
Problems with Vision.
Notes: Structure of Eye
Week 9: Seeing Light CHAPTER 4, SECTION 4 Page 125 – 128.
VISION.
Presentation transcript:

Canadian Association of Optometrists Myopia

Myopia, or Nearsightedness is a visual condition in which near objects are seen clearly, but distant objects do not come into proper focus.

Why does myopia occur?

When your eyeball is too long or the cornea has too much curvature it will result in: The light entering the eye will not focus properly on the retina, the sensory layer, inside the eye. Myopia may be hereditary or it may occur spontaneously.

How common is myopia?

Myopia is a visual condition that affects nearly thirty per cent of the Canadian population. It normally starts during childhood and continues to increase until the individual reaches the age of 20.

Will I have to wear glasses?

You may need glasses for distance only or full time as the prescription increases to enable you to see more clearly. If needed, your OD will prescribe corrective lenses for you. You may only need them for certain activities, like watching television, going to a movie or driving a car.

Will glasses or contact lenses cure myopia?

There are currently no proven cures for nearsightedness. Eyeglasses or contact lenses optically correct the problem by altering the way the image enters your eyes. Surgical procedures such as LASIK, PRK or SBK, and/or lens implants may eliminate your need for glasses or contact lenses.

How is myopia diagnosed?

People with myopia will often have trouble seeing the whiteboard, the movie screen, the television set or other distant objects. When your optometrists gives you a comprehensive eye examination, he or she will include tests to determine if there is a prescription for myopia.

How will myopia affect my lifestyle?

If glasses or contact lenses are prescribed, it may take up to two weeks to adjust to seeing clearly with them. Some people with myopia may find that they are restricted from some occupations such as: police officers or fire fighters - due to their inability to see properly if their glasses fall off. In these cases, contact lenses or laser surgery are options for correcting nearsightedness and are ideal for people with more active lifestyles.

Thank You. Questions?