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Phacoemulsification
 
Nuclear Sclerotic Cataract
(Most common)

Cortical Cataract
(Spoke-like) (Extremely common)

Posterior Sub-Capsular Cataract (Very common)
Dense (Traumatic) Cataract
Lamellar Cataract
(Usually congenital)
Cerulean Cataract
Polychromatic Cataract
(Very rare)
 

Phacoemulsification refers to modern cataract surgery in which the eye's internal lens is emulsified with an ultrasonic hand piece, and aspirated from the eye. and artificial lens(intra ocular lens) is implanted.

Normal lens with a clear
view (left)
Cataractous lens with a blurry
view (right)

CATARACT

Cataract is opacification of natural lens of the eye.
It occurs mostly due to aging but can occur due to diabetes, steroid intake, injury , birth defect etc.
When vision falls below useful levels, the opaque lens is removed by operation & artificial lens is implanted in its place. There are no Medicines to cure cataract.
Results depend more on surgical neatness than lens type.
Use of a cap and sun glasses since early age may prevent solar injury which is a possible cause of early cataracts.

Intraocular Lens (IOL) : After cataract removal an artificial lens is implanted in the eye. This lens takes over the function of the removed natural lens. The artificial lens can be of various materials and designs.

Monofocal Foldable Lens Monofocal Nonfoldable  Lens Multifocal Lens

 

 

 

 

 

 

Cataract Management Process

The patient is informed of various approaches of surgery and choice of lenses and consent is obtained.
The power of IOL is determined by BIOMETRY.
The operation is done mostly under local anesthesia by numbing the eye through an injection or drops.
One or more incisions (cuts) are made in the eye to allow introduction of surgical instruments. The size of incisions depend upon the technique chosen.
 
Incision
The surgeon there removes the front face of the capsule(capsulorhexis) that contains the natural lens.
 
Capsulorhexis
Now the cataract is removed by one of the methods as follows.

In Phacoemusification, a microprocessor controlled ultra sonic hand piece (phaco probe) with a titanium or steel needle is used. The tip of the needle vibrates at ultrasonic frequency to emulsify the cataract which is then aspirated through the tip

 
Phacoemulsification

In non phaco approach, the whole cataract is delivered out through the incision, which in this care is larger than phaco incision
 

Non Phaco Cataract removal

After removing the hard part of cataract by one of the above methods, the soft part (cortex) is aspirated from the capsular bag by irrigation aspiration probe (fig)
 
Removing the lens Cortex

 

 

 

The IOL is then placed in the cleaned bag either by injection (foldable) or by forceps ( non foldable)

 
Placing the intraocular lens
(f olded like a taco )
in the bag through a small incision

 

 

 

Post Operative Care: Cataract surgery is usually day care surgery and patients can go home a few hours after the procedure. They can resume their normal activities within a couple of days taking care to protect the eye from injury or infection and using eye drops for 4-8 weeks, as advised.

Capsular Opacification: Some pateints may develop a thin layer of cells on their posterior capsules over few mouths to few years after cataract surgery. This leads to reduction of vision and can be easily rectified by making a sufficient sized opening in the opacified capsule with a YAG LASER as an office procedure.


Posterior Capsular Opacification (PCO) treated by YAG Laser Capsulotomy

Cataract services at NETRA
Phacoemulsification
Non Phaco Small incision Surgery
Minimum medicines.  About 3 hrs hospital Stay
Option of freedom from Spectacles in most routine activities after operation
Option of removing cylindrical power at the same time to get undistorted
      vision without glasses
YAG Laser to treat capsular opacification.

Phacoemulsification
Glaucoma Management
Diabetic Retinopathy Care
Retinal Detachment Surgery
Cornea Grafting
Refractive Surgery
Oculoplastic Surgery
Squint Correction
Contact Lenses
From Doctor's Desk
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