Lens Cornea Iris Optic Nerve Retina The ‘Normal’ Eye.

Cornea

OpticNerve

Retina

The ‘Normal’ EyeThe ‘Normal’ Eye

Light is refracted (or bent) by the cornea and lens Image focuses

on the retina

A clear image is seen

SCATTERING OF LIGHTSCATTERING OF LIGHT

Cataract causes Scattering of light

Mature Cataract no light enters the eye

Central Cataract no light enters the eye

INSCISIONINSCISION

2.8 mm OPENING

INSCISIONINSCISION

2.8 mm OPENING

CAPSULOREXHISISCAPSULOREXHISIS

PHACO PROBE INSERTEDPHACO PROBE INSERTED

LENS CUTLENS CUT

LENS REMOVEDLENS REMOVED

INTRAOCULAR LENSINTRAOCULAR LENS

2.8 mm OPENING

LENS FOLDEDLENS FOLDED

FOLDED LENS UNFOLDSFOLDED LENS UNFOLDS

Extra Capsular Cataract ExtractionExtra Capsular Cataract Extraction

Old or Conventional Surgery

12 mm opening made in the eye

CAPSULOREXHISISCAPSULOREXHISIS

Manually lens removedManually lens removed

Rigid lens insertedRigid lens inserted

Sutures Placed Sutures Placed

Lens Cornea Iris Optic Nerve Retina The ‘Normal’ Eye.

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Transcript of Lens Cornea Iris Optic Nerve Retina The ‘Normal’ Eye.

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