Docstoc

THE EYE

Document Sample
THE EYE Powered By Docstoc
					THE EYE
Anatomy of the Eye
Common Disease of the Eye
Corneal Laceration
 James is a 22 yrs old martial arts athlete
  who sustained a kick to his right eye 6
  months ago.
 He sustained injury to his right cornea
  laceration due to the contact lens
 He was seen by an opthalmologist and
  treated for several weeks
 But he still has blurred vision in his right eye
 It is best seen under slit lamp, after
  flourescin staining
                                                           Corneal Laceration




The corneal injury is visualised as a white patch on the
cornea
                                                         Flourescin Staining




Flourescin staining selectively stains damaged corneal
tissue
Further Treatment
   In full thickness corneal laceration, aqueous
    humour may leak out resulting in distortion
    of the shape of the eyeball.
   He wanted to continue fighting, so further
    treatment with
    Phototherapeutic keratectomy (PTK) or
    Corneal Transplant.
   Failure to do so, he may not be able to clear
    his Pre-participation examination with 'one
    good eye'.
                  Cataracts
   Cataracts - clouding or opacification of the
    natural lens of the eye




   Cataract Vision
How can cataracts be treated?
   The only treatment for cataracts is surgical removal.
   Cataract surgery is the removal of the eye lens and replacing it
    with an artificial one.
   Two basic types of surgical procedures to treat cataracts
   (1) Phacoemulsification - utilizes a small incision on the side of the
    cornea to access the cataract with a tiny probe. Ultrasound is then
    used to break up the lens for removal by suction. This is the most
    popular kind of cataract surgery.
   (2) Extracapsular surgery -This procedure requires a longer
    incision.The cloudy core is removed intact followed by removal of
    the remaining lens by suction.
   If the eye is otherwise healthy, an intraocular lens may be used to
    replace the natural, cloudy lens. This lens requires no care.
   Post-operative orders carefully. Not to bend over or lift heavy
    objects for a few days or weeks. A protective eye shield will reduce
    the chances of injury to the eye.
                                    Professor Fred Hollow’s
                                    work to restore sight
                                    to the cataract blind in
                                    developing countries
                                    was ongoing 15 years
                                    after his death.
                                    Cataracts are the
                                    cause of about half of
                                    all cases of avoidable
                                    blindness in
                                    developing countries
                                    and they can be
FRED HOLLOWS PERFORMING AN OCULAR   removed with a
      EXAMINATION IN VIETNAM
                                    relatively simple
                                    operation costing as
                                    little as $25.
Retinal Detachment
 Can be caused by
  trauma – e.g.
  boxing
 Sudden
  acceleration and
  deceleration –
  bungee jumping,
  car accidents
Detached Retina
Avulsed Eye ball
 Will it ever work again?
 What will need to be intact for it to
  work?
This powerpoint was kindly donated to
www.worldofteaching.com


http://www.worldofteaching.com
Is home to well over a thousand powerpoints
submitted by teachers. This a free site. Please visit
and I hope it will help in your teaching

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:12
posted:8/26/2011
language:English
pages:13