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Cataract Eye Surgery

Cataract Eye SurgeryWhat is a Cataract?

 

Opacification of the lens in the eye is called Cataract. It is a cause of concern worldwide, because there are 33-35% of visual impairment cases which are due to cataract. This condition gradually progresses, decreases the vision and affects one or both the eyes. The patient may experience blurred or poor vision, faded colours, halos, half blindness and sensitivity to the bright light. Some may face trouble in recognizing faces, reading or driving.

Causes of cataract

Cataract is common in the patients suffering from glaucoma and diabetes. Overuse of steroids, an eye injury or any trauma can lead to cataract development in the eye.

In congenital cataract, the development is from childhood and affect both the eyes. In some babies cataract may be small and it does not affect the vision. If it is affects the vision, then surgery is necessary to replace the lens.

Exposure to some radiation can also cause cataract.

  • Age
  • Trauma
  • Radiation
  • Genetics
  • Skin diseases
  • Drug use
  • Medications
  • Iatrogenic
  • Other diseases

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Types of Cataract

According to the opacities LOCS III system, cataracts are classified into partial or complete, progressive, stationary, hard or soft. Cataract is also related to ‘ageing’ so the people in the age group of 40-50 years get affected. Cataracts related to age are nuclear sclerosis, cortical and posterior subcapsular.

In nuclear sclerosis cataract, the central or ‘nuclear’ part of the lens is affected. Later, cataract becomes sclerotic over the time due to brown pigment sedimentation within the lens and the condensation of the nucleus. It leads to nearsightedness and causes problems with distance vision. Reading is possible in this type.

When the cortex of the lens becomes opaque it give rise to cortical cataract. It happens because of the changes in the water content of the periphery which causes fissuring. The appearance is similar to white spokes of a wheel when viewed through an instrument called ophthalmoscope. Patients may experience problems with glare and light scatter at night.

When the backside of the lens adjacent to capsule becomes cloudy, then this type is called Posterior subcapsular cataract. In this type light becomes more focused on the back portion of the lens which causes disproportionate symptoms for their size.

In morgagnian cataract the proteins of the lens become liquid. In mature cataract the protein of the lens is opaque. In immature cataract the protein is somewhat transparent.

Congenital cataract types are lamellar, polar, and sutural cataracts which may get detected in the adulthood.

How Cataract Affect Vision?

Lens is a very important part of the eye. It changes its shape & focal distance and adjusts light in order to create clear images of objects onto the retina. Retina passes the signal through the optic nerve, the brain interprets it and an image is perceived. Cataract distorts light passing through the lens which causing impaired vision and similar other compalints.

Symptoms of Cataract

The symptoms of cataract are:

  • Clouded lens (appear to others)
  • Blurred vision
  • Difficulty with the glare in bright sunlight or while driving at night
  • Dulled color vision
  • Increased myopia>
  • Changes in eyeglass prescription or optical power
  • A phenomenon called “second sight”

Diagnosis of Cataract

The Eye specialist, or Ophthalmologist, will examine the eye/ eyes and perform a visibility test. It is compulsory to bring the glasses or wear contact lenses. The doctor will dilate the patient’s pupils to examine the condition of the lens and other parts of the eye.

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How is a cataract treated?

If vision is untreatable with prescribed glasses, then surgery is needed to replace the clouded lens with clear artificial lens.

Cataract surgery is an outpatient procedure, takes only 15-20 minutes. Under a local anesthesia or sedative drops, the surgeon performs phacoemulsification i.e. making a small incision on the side of the cornea. Then a device is inserted into the opening of the eye. This device produces ultrasound vibration to break the lens into small pieces. These fragments are cleaned out by suction. The surgeon then inserts an (artificial) intraocular lens to replace the natural lens. The intraocular lens is made up of plastic, acrylic, or silicone with an appropriate optical power. The process is called intraocular lens implantation.

Connect With IndianMedTrip

Patients can happily connect with IndianMedTrip and seek expert medical opinions from specialists about the treatment of their medical condition. They can also make it a memorable medical holiday by clubbing it with some vacationing in India. IndianMedTrip offers affordable treatment packages for Cataract surgery from top trusted eye hospitals/clinics in India. These hospitals are internationally accredited that render world-class medical facilities and special personalized care. Associated Ophthalmologists and Eye surgeons are highly qualified and skilled in their respective specialty. The Indianmedtrip medical tourism program includes post or preoperative consultation with doctors, surgery appointment, accommodation, travel and sightseeing.

 

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