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THE EYETHE EYE

Anatomy of the EyeAnatomy of the Eye

Common Disease of the EyeCommon Disease of the EyeCorneal LacerationCorneal LacerationJames 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 TreatmentFurther TreatmentIn 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'.

CataractsCataractsCataracts - clouding or opacification

of the natural lens of the eye

Cataract Vision

How can cataracts be How can cataracts be treated?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 removed with a relatively simple operation costing as little as $25.

FRED HOLLOWS PERFORMING AN OCULAR EXAMINATION IN VIETNAM

Retinal DetachmentRetinal DetachmentCan be caused

by trauma – e.g. boxing

Sudden acceleration and deceleration – bungee jumping, car accidents

Detached RetinaDetached Retina

Avulsed Eye ballAvulsed Eye ballWill it ever work again?What will need to be intact for it

to work?

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