Understanding Vision Your eye focuses on what you are

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(No Transcript)
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Understanding Vision
Distance Vision
The Human Eye The Camera
Lens
Focal Point
Cornea
The cornea lens work together to focus images
in the eye
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Understanding Vision

• Your eye focuses on what you are looking directly
  at
• Central vision is sharp clear peripheral
  vision blurred
• Your eye is continually refocusing as you look
  from far to near
• Near vision focusing is called ACCOMMODATION

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Normal Accommodation
Intermediate Vision
Intermediate vision is clear Distance near
vision out of focus
When looking at arms length, the lens changes
shape moves forward to focus images
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Normal Accommodation
Near Vision
Near vision is clear Distance vision out of focus
When looking at near objects, the lens continues
to change shape move forward to focus image
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The Ageing Eye
Near Vision
Focal Point
The ageing lens loses its ability to change
shape Reading glasses or bifocals are
required Loss of Accommodation is called
PRESBYOPIA
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IF YOU HAVE A CATARACT, YOURE NOT ALONE

• 2.5 million cataract surgeries per year
• Number-one therapeutic surgical procedure for
  Americans over 65

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TODAYS CATARACT SURGERY

• Greatly improved technology
• Usually no hospital stay or long recovery period
• Safer, faster and more comfortablethan ever

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WHAT IS A CATARACT?

• The lens focuses light on the retina
• As we age, the lens hardens and cantfocus at
  close distances
• As we continue to age, the lens maybecome cloudy
• The cloudiness is the cataract

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HOW DOES A CATARACT AFFECT VISION?

• A cataract scatters light in the eyeinstead of
  focusing it
• The cloudier the lens,the more light isscattered

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HOW DOES A CATARACT AFFECT VISION?

• Simulated Cataract Vision

Simulated Normal Vision
Gradually, vision becomes dimmerObjects lose
their color
Photos courtesy of the National Eye Institute
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PEOPLE WITH CATARACTS HAVE DIFFICULTY

• Seeing in the distance or reading
• Distinguishing road signs at dusk
• Recognizing colors
• Recognizing friends and family ata distance
• Driving at night

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WHO GETS CATARACTS?

• Almost everyone sooner or later
• Half of all people between the agesof 52 and 64
• Younger people, due to injury, excessive
  sunlight, metabolic changes, or drugs

American Academy of Ophthalmology
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DETECTING A CATARACT

• Visual acuity test
• Slitlamp examination
• Glare test

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TREATING A CATARACT
The eye care practitioner andthe patient decide

• Is vision impaired?
• Is quality of life affected?

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TODAYS CATARACT SURGERY

• A marvel of medical technology
• Outpatient procedure
• Local anesthesia
• Tiny incision heals rapidly
• Little of no discomfort

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THE CATARACT PROCEDURE

• The clouded natural lens is removed
• A man-made lens is inserted
• The new lens is an intraocular lens(IOL)

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CHOICES FOR RESTORING VISION

• Todays technology offers twodifferent types of
  intraocularlenses (IOLs)

Monofocal
ReZoom
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MONOFOCAL
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MONOFOCAL

• Good vision at one distance usually far
• Most people need glasses for close-upactivities
  like reading or crafts
• Good vision when you go to aballgame or read
  road signs

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The ReZoom Multifocal Lens
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The ReZoom and Crystalens IOL

• Designed for good distance visionand near vision
• Can reduce the need for glasses in activities
  like reading, watchingtelevision, or watching a
  movie

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ReZoom RANGE OF VISION EXAMPLES

• If youre golfing, you may be able to see where
  your drive lands, sink yourputt, and write down
  the score,without glasses
• When shopping, you may be able toread the aisle
  signs and the packagelabels, and count your
  change,without glasses

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EQUAL SAFETY FOR BOTH IOL TYPES

• Identical surgical procedures
• The real difference is the type of vision

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ReZoom Balanced View Optics Technology
Pictorial representation
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ReZoomTM IOL Spectacle Independence
Source Product labeling.
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ReZoom IOL Visual Outcomes
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Patient Brochure
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Which Lens Is Best For You?

• We will help you decide which lens is the best
  alternative for your specific refractive need
• Not everyone is a candidate for CrystaLens Vision
  Enhancement Surgery
• Lifestyle
• Expectations
• A thorough examination will be performed
• Multiple diagnostic tests will be performed

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Expectations

• All surgery involves risk
• Not everyone responds to the surgery in the same
  way
• Other medical eye diseases may influence your
  ability to see clearly /or accommodate

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Vision After Accommodative Surgery

• 1 to 10 days after surgery
• Distance vision is typically excellent in the
  majority of patients
• Near intermediate vision may be excellent after
  surgery, however varies from patient to patient
• Typically continues to improve over time

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Vision After Accommodative Surgery

• One year after surgery
• 98.4 were able to drive, watch TV, participate
  in sports perform normal activites
• 98.0 were able to work on their computer, read
  product labels read the speedometer
• 98.4 were able read newspapers, magazines,
  recipes sew dial their cell phone

Without Glasses
73.5 do not depend on glasses at all or wear
them only occasionally
FDA Clinical Study
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Are You A Candidate For crystalens Vision
Enhancement?

• Schedule a eye examination
• Talk with people who have had cataract surgery
• Research lens replacement after lens removal
  surgery
• Find a qualified certified crystalens Vision
  Enhancement Surgeon