What is cataract
The human crystalline lens, which is clear and transparent is part of the focusing mechanism of the eye.
With age, the lens becomes cloudy and opaque, thereby hampering normal vision.Any opacity in the crystalline lens, which leads to decreased vision is cataract.
The early cataractous lens bends light irregularly, so the images formed are blurred and unclear.
When opaque, the cataract may cut off light nearly in total, causing blindness(reversible).
What causes cataract?
Ageing is the most common cause. With age, proteins of the ye lens get altered and opacified leading to cataract. Other causes include congenital and developmental anomalies, trauma, inflammation of the eye, metabolic diseases like diabetes, Hypothyroidism etc.,
What are the common symptoms of cataract?
Cataract makes simple tasks difficult and in some cases impossible to perform.
This happens on account of:
- Cloudy of Blurred Vision
- Changes in one’s perception of colours
- Sensitivity to bright lamps or sunlight
- Poor night vision
- Difficulty in driving especially at night
- Frequent changes in eye glass prescription
What are the treatment options for Cataract?
Surgery is the only course of treatment for cataract.
There are two options available for cataract surgery:
Conventional Cataract surgery or Extra Capsular Cataract Estraction(SICS/ECCE)
- Injections are given near the eye
- Requires an incision of 7-8 mm
- The cloudy eye lens is removed in one piece
- A hard plastic lens is removed in one piece
- A hard plastic lens is implanted
- Multiple Stitches are required in ECCE
- Final glass prescription could take even up to 10 weeks
Micro incision Cataract Surgery(PHACOEMULSIFICATION)
Requires a very small incision of 1.5-2.8mm
Cataract Extraction with Phacoemulsification is followed by foldable lens implantation Walk-in Walk-out procedure Stitch less, bloodless, painless surgery Changes of infection are very low Minimum post surgery precautions Quicker healing and recovery Phacoemulsification Microincsion.
When to go for Cataract removal?
Cataract should be removed as soon as it begins to affect daily activities. With any of the above mentioned symptoms setting in, it is the right time to go for Cataract removal. DO NOT WAIT FOR THE CATARACT TO GET MATURE as unnecessary delay can lead to avoidable complications and more difficult surgery. Cataract surgery can be undertaken successfully in any season. Summer or rainy season have absolutely no effect on the outcome of the cataract surgery.
What is the recommended treatment for cataract?
With phacoemulsification and implantation of foldable Intra Ocular Lens(IOL) , treatment of cataract has become very simple and sophisticated. The procedure is safe, accurate and leads to repaid recovery. Thus phacoemulsification with foldable lens implant is the most recommended treatment for cataract.
What is phacoemulsification with foldable IOL?
In phacoemulsification, ultrasound power is used to break the hard cataract into minute pieces, which are then sucked out through a small 1.5-2.8mm incision. A foldable lens (IOL) of the required power is then implanted. The soft construction allows the lens implant to be folded for insertion through a 1.5 to 2.8 mm microincission . Once in place, the lens unfolds to its regular size of 6 mm.
PHACOEMULSIFICATION FOR CATARACT
What are the advantages of phacoemulsification with foldable IOL over conventional cataract surgery ?
It allows for a injectionless, stitchless, painless, no bandage surgery.
- Drops of local anaesthetic agent are used instead of an injection in the eye, thus leading to a walk-in walk out procedure
- Early visual rehabilitation for the patient.
- Minimum curvatural changes occur in the eye following surgery
- Post surgery, the wound is very secure
- Final glasses can be prescribed within two weeks.
How soon after phaco surgery, will I be able to see?
In some cases the patient is able to see almost immediately following the surgery, although most patients experience clear vision after one or two days.
Will I need glasses after phaco surgery?
You may need to wear glasses only to fine-tune your vision. These spectacles have normal lenses unlike thick lenses used in the past. If unifocal IOL is used, near vision glasses are almost always required.
Will activities have to be restricted after phaco surgery?
Normal activities including walking, reading, writing, watching television etc. May be resumed soon after the surgery. However, during the first week of the surgery, it sis better to avoid strenuous activities & avoid exposing the eye to water or dust.
Is there any diet restriction after phaco surgery?
There are absolutely no diet restrictions after phaco and you can continue with your normal diet. However, diet regulation advised for other diseases like diabetes, High blood pressure, eetc must continue.
Can I have phaco surgery on one eye even if the other eye had been operated upon by the convetional surgery?
Yes, you may have micro incision Phaco surgery on your “Second eye” you will have better vision.
How long will the procedure take?
With the advanced technique of the cataract surgery, removal of the cataract takes just about 2 minutes and the entire procedure would take about 5-8 minutes. All procedures are done with advanced operating microscopes form Cal Zeiss (Germany).
The latest multifocal IOLs are designed to provide good distant vision, intermediate and near vision. They reduce the patient’s dependence on glasses for routine activities. Unlike conventional IOL it has multiple zones of different focal lengths that bring everything from near to far into clear focus. These lenses can be used only for suitable patients.
Started it’s journey on the path to comprehensive &quality care in 1993. Sharat Laser Eye Hospital Super Specialty Eye Hospital is a High-tech Eye hospital offering comprehensive eye care facilities with the state-of-the art technology to treat various eye disorders. Sharat Laser Eye Hospital is an icon of dynamic progress in the field of Ophthalmology. The hospital has the distinction of being the First Super Speciality Eye Hospital in Andhra Pradesh to accredited by the National Accreditation Board For Hospitals & Healthcare providers(NABH) , a constituent board of Quality Council of India(QCI) which focuses on patient safety & quality of care.