Post on 29-Mar-2015
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Lens
Cornea
Iris
OpticNerve
Retina
The ‘Normal’ Eye
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Light is refracted (or bent) by the cornea and lens Image focuses
on the retina
A clear image is seen
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SCATTERING OF LIGHT
Cataract causes Scattering of light
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Mature Cataract no light enters the eye
Person in not able to see any thing
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Central Cataract no light enters the eye
Here also the person is not able to see anything
Though the cataract is not mature
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Latest technique to remove the cataratatous lens through a small
key hole opening called
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INCISION
2.2 mm small self sealing OPENING
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INCISION
anterior layer of the lens is removed CAPSULOREXHISIS
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CAPSULOREXHISIS
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PHACO PROBE INSERTED
A phaco probe is inserted which uses ultrasound to cut the lens into small pieces
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LENS CUT
A phaco probe is inserted which uses ultrasound to cut the lens into small pieces
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LENS CUT
phaco probe is inserted which uses ultrasound to cut the lens into small pieces
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LENS REMOVED
phaco probe removes the cut pieces of the lens
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LENS REMOVED
phaco probe removes the cut pieces of the lens
PRADNYA NETHRALAYA
LENS REMOVED
phaco probe removes the cut pieces of the lens
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LENS REMOVED
phaco probe removes the cut pieces of the lens
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LENS REMOVED
All pieces are removed
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FOLDABLE INTRAOCULAR LENS
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13 mm
6 mm
FOLDABLE INTRAOCULAR LENS
Introocular lens is 13 x 6 mm
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FOLDABLE INTRAOCULAR LENS
OPENING IS ONLY 2.2 mm
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LENS FOLDED
3 mm
Intraocular lens is folded
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This intraocular lens is injected through the 2.2 mm opening
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FOLDED LENS UNFOLDSThe lens unfolds like a flower inside the eye
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ADVANTAGES OF PHACOEMULSIFICATION
The surgery is• Stitch less• Bloodless• Painless• Controlled • No injection • No eyepad
It helps Patient’s• Early rehabilitation • Less post operative
discomfort• Less induced astigmatism• Minimum post operative
restriction• More satisfied
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Extra Capsular Cataract Extraction
Old or Conventional Surgery
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12 mm opening made in the eye
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CAPSULOREXHISIS
anterior layer of the lens is removed
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CAPSULOREXHISIS
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Manually lens removed
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Rigid lens inserted
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Sutures Placed