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Cataract
 

Dr Taori’s Eye Hospital is a well known Hospital for advanced treatment in cataract surgery. Our patients are being benefited by Phacoemulsification so as to achieve satisfactory surgical outcome.

Cataract

A cataract is a clouding of the lens of the eye.

The amount and pattern of cloudiness within the lens can vary. It can be Immature cataract or Mature cataract depending on the degree of opacification of the lens.

Common symptoms of cataract include:
• blurring of vision;
• glare, or light sensitivity;
• poor night vision;
• poor day vision- central cataracts
• double vision in one eye;
• needing brighter light to read;
• fading or yellowing of colors;

Causes and symptoms

The most common type of cataract is related to aging of the eye. Causes of cataract include:
• family history;
• Cigarette Smoking
• Pollution
• diabetes;
• injury to the eye;
• medications, especially steroids;
• long-term, unprotected exposure to sunlight;
• previous eye surgery;
Most age-related cataracts progress gradually over a period of years.
In a normal eye, light focuses precisely at one point on the retina.
In an eye with a cataract, light scatters throughout the eye instead of focusing precisely at one point

Treatement

IMMATURE CATARACT
Generally Older population is affected by Cataract. If the person has sedentary life-style and vision loss is not affecting daily routine surgery may not be needed. Regular Evaluation ( every 3-4 months) by Ophthalmologist is must to see the progress of Cataract Sometimes a change in eye-glass prescription may be helpful in the early stages.

A 50-year-old busy executive may feel handicapped if he finds it difficult to read the fine print in important contracts that he has to sign daily. A 75 year old housewife with a much more advanced cataract may have no complaints as she is able to see the big print of her religious books

MATURE OR ADVANCED CATARACT
In these cases surgery should be done ASAP to prevent complications caused by Cataract (eg. Lens induced Glaucoma). Surgery is the only way a cataract can be removed.

When should surgery be done?
Surgery should be considered when cataracts cause enough loss of vision to interfere with your daily activities. This may vary from person to person depending on their individual needs and lifestyle.

METHODS OF CATARACT SURGERY

1) Extra Capsular Cataract Extraction (ECCE)- In this method Cataract is removed as a whole so a bigger Incision has to be taken, requiring closure by sutures.
2) Small Incision Cataract Surgery-In this method the nucleus is broken into 2 or 3 pieces by special instruments and removed thro’ a special incision (Tunnel incision) which doesnot require sutures.
3) Phacoemulsification

Cold Phaco :

This state of art technology provides great safety during cataract surgery with Phacoemulsification
• Fastest microprocessor based digitally controlled Phaco System, which generates very low levels of heat.
• Offers patient safety and quickest recovery
• Improved fluid dynamics leave the eye as if ‘Untouched

Carl Zeiss Microscope

It is the latest and most advanced Model of microscope
• Bright Flex Tm illumination System for a bright rich red reflex. •
• Safety for the retinal (macular) tissue.

Phacoemulsification V/S laser surgery for cataract

Phacoemulsification is the use of a machine to which is attached a probe, which vibrates at a very high frequency emitting ultrasonic energy. This breaks up or emulsifies the lens (Greek ‘phakos’=lens and ‘emulsify’ is to liquefy) into tiny bits, which are then sucked out through tiny openings in the same probe. This is what the lay public refers to as ‘laser surgery’. In actual fact there is no use of the laser at all for cataract removal in these machines

TYPES OF IOL’S

The IOL is a thin plastic or acrylic lens. The first ones were put shortly after the Second World War. They then became unpopular due to a high complication rate. They were then modified and the present type has been in use since the early eighties. In the present day, almost 100% of cataract surgeries the world over are done with the simultaneous implantation of an IOL. They are extremely safe and are well tolerated by the body. There is no rejection of the material of the lens, which is biologically inert

• Rigid IOLs are usually made of a medical grade plastic called PMMA and have a maximum width of 5to6mm.. Hence to insert them into the eye, the incision in the eye also has to be approximately the same size. They can be inserted after any type of cataract surgery.

• The foldable IOLs are made of acrylic or silicon material and can be folded so as to enable them to be slipped into the eye through a smaller incision, even as small as 3mm. These can only be inserted after cataract surgery by phacoemulsification. The smaller the incision, the less chance for astigmatism or cylinder number induced by the incision.

• Multifocal IOLs which can correct both, distance and near vision hence reducing the patient’s dependence on glasses for both distance and near. They are a little more expensive than the other IOLs. However, not all patients are suitable candidates.

• Yellow IOLs
They are coated with a special pigment to give the patient more natural vision, especially for night driving. They are at present among the most expensive foldable IOL available in the market.

• Intra Ocular Lenses:

We have wide variety of intra Ocular Lenses (IOLS) available at Dr Taori’s eye Centre. They can be categorized on different basis.

a. Depending on material used: eg. PMMA, Silicone, acrylic
b. Depending on the function: unifocal and multifocal
c. Depending on its design: foldable and non foldable
d. Depending on the type: Anterior chamber and posterior chamber IOL’s

PRECAUTIONS TO BE TAKEN IN DIABETIC OR HYPERTENSIVE PATIENTS
• Normal Breakfast allowed for all Patients in the morning before surgery
• Diabetic Patients should take their medication or insulin after the surgery
• Hypertensive (High Blood Pressure) Patients can continue with their medication as per their daily schedule

 
 
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