Cataract Management

FAQ

In the normal eye the lens inside is clear and transparent, but when cataract develops it becomes cloudy and opaque. So the light is not focused on the retina through lens which leads to blurring of vision.
Cataract can be developed with age (Senile Cataract) Child can be born with cataract (Congenital Cataract) X-ray & other radiation (UV light) can cause cataract (Radiation Cataract) Exposure to sunlight, Diabetes and Heredity are also factors for the Cataract development.
As mentioned, it is related. Blurred vision worsens with time. Some complains about dimness in eye and brightness in the other eye. Printed images may seem distorted. Glaring effect may be experienced. However, Cataract never causes pain, itching or redness.
No, till date no preventive measure is found for the Cataract. It is an age related changes. No drugs, diets or medicine can delay or cure the Cataract. However, Wearing a sunglass that blocks the UV rays can slow down the process of development of Cataract.
As mentioned, it is related. Blurred vision worsens with time. Some complains about dimness in eye and brightness in the other eye. Printed images may seem distorted. Glaring effect may be experienced. However, Cataract never causes pain, itching or redness.
No, till date no preventive measure is found for the Cataract. It is an age related changes. No drugs, diets or medicine can delay or cure the Cataract. However, Wearing a sunglass that blocks the UV rays can slow down the process of development of Cataract.
Surgery is the only way to remove the Cataract.
Under an operating microscope and with Phaco-emulsification machine a small cut is made in the eye and cloudy lens is removed and plastic Intra-ocular Lens is placed in place of natural lens.
Over 95% of Cataract surgery will improve the vision. While pre-existing associated condition like glaucoma, diabetes, retinal condition etc may limit the vision even after surgery. Yet, Cataract surgery may still be worthwhile and necessary.
Under ordinary circumstances cataract surgery is not an emergency situation except few rare instances. Therefore in most of the cases the choice of undergoing surgery largely depends upon patients. In the past, surgeons usually waited till the time Cataract becomes mature or ripe, but modern technique an advances have now made possible to perform Cataract removal at early stage. When it interferes with your day to day work, it is time for surgery. However, it is advisable to have cataract operated early before it becomes hard. An Ophthalmologist can give proper guidance.

In recent time, two techniques are widely performed like;

ECCE ( Extra Capsular Cataract Extraction) : It is safe and perform under the operating microscope where the posterior (back membrane) of Cataract is kept inside purposefully to support the IOL (Intra Ocular Lens). The big incision of around 8-10 mm is sutured with very thin thread.

PE (Phaco Emulsification) : It is the latest technique which is performed by computerized machine. Since incision is very small of 2.85 mm, no sutures are required and rehabilitation of the patient is quick and fast.

Comparison of these two techniques

Phaco-emulsification ECCE
Incision 3 mm 8-10 mm
Sutures No Sutures 6-7 sutures
Healing Period 10-15 Days 50-60 Days
Operation Time 10 to 15 min. 30-40 min
Technique Computerized Manual
IOL Foldable Silicone IOL Acrylic
Post operative Astigmatism Very less Can be more
Phaco-emulsification will be the best of choice, however Ophthalmologist will be able to guide you more regarding this.
It is Out Patient Surgery, no stay is required. Patient will be discharged immediately after the surgery.
After surgery you should be able to resume most activities almost immediately. You will be cautioned against heavy lifting and strenuous exercise to avoid putting unnecessary strain on the tiny structures as your eye heals.
Vision usually improve within a few days after surgery, but complete healing of the eye takes about a month. Vision continues to improve as the eye heals.
Since the posterior (back) portion of the lens capsule is left inside the eye purposefully to support the IOL (Intra Ocular Lens). Over a period of time, the cells of the capsule grow and make the capsule thick and opaque which obscure the vision. This is not the complication. With help of the Yag Laser small opening is made in the capsule just in few seconds without the surgery. Yag Laser Treatment is noninvasive OPD procedures, requires no anesthesia and no patch. Younger patients are more prone of thickening of Capsule.
Advantages of Silicone Lens over Acrylic Lens :

Light Weight Lower Specific Gravity compare to PMMA Lens.

Flexible Can be folded or rolled in variety of insertion through incision as small as 3 mm.

Optical Clarity Improved clarity & minimize Spherical Aberration & Glaring effect.

Bio compatibility Well accepted by eye.

Autoclavable Steam Sterilization eliminates possibility to ETO side effect

All IOLs used are US FDA approved or Europe CE marked.

Multifocal IOL

Multifocal IOLs work by using apodized diffractive and refractive technologies to provide a full range of vision.
Apodization is a gradual reduction of the diffractive step heights. This unique technology helps optimally manage light energy delivered to the retina by distributing the appropriate amount of light to near and distant focal points, regardless of ambient lighting. Multifocal IOLs' apodized diffractive optic is designed to improve image quality while reducing visual disturbances. Some visual effects are to be expected, including halos around lights in nighttime conditions.
Light rays from near objects diverge as they enter the eye, but the +3.0 D IOL, for example, uses its central apodized diffractive region and +3.0 D correction to focus these rays into a clear image on the retina.
Light rays from distant objects are parallel as they enter the eye. Mutifocal IOLs use both the central apodized diffractive and peripheral refractive regions of the optic to focus distance images on the retina.
In bright light, with constricted pupils, the lens sends light energy simultaneously to both near and distant focal points. In low light, with dilated pupils, the apodized diffractive lens sends a greater amount of energy to distance vision to minimize visual disturbances.
In dim or dark lighting conditions, patients with Multifocal IOLs enjoy improved distance vision, which aids in activities such as driving. However, they may require reading glasses or additional lighting for near visual activities, like reading a menu. The majority of patients reported minimal visual disturbances like glare and halos six months after surgery.