Restor - a new way to see far and near

Serving Orange County, California and Surrounding Communities

Has your vision lost the lustre it once had or have you been diagnosed with a cataract? Are you having difficulty in seeing near? If you are above 45 years of age there may new hope.

Dr. Khanna, medical Director of the prestigious Khanna Institute of LASIK and Refractive surgery is now offering a new treatment modality. ReSTOR lens that rely on advanced multi-focal technology that allow patients to see both near and far objects without glasses! In a clinical study, 80% of patients receiving the ReSTOR lens reported that they no longer wore glasses for any activities at all. Dr. Khanna has found that combing these new lenses with the small incision procedure, there is no need for stitches, can provide reduced healing time and thereby significantly increases patient comfort.

"Dr. Khanna is great, very experienced, confident, and no, I didn't feel a thing. (nothing like a dentist)."
– Gurpreet Sidhu, DDS
How does the AcrySof® ReSTOR® IOL work?

Dr. Khanna says that as we perform daily activities such as reading, watching television or working at the computer, our eyes are constantly focusing on objects at varying distances - up close, far away and everything in-between. The ability to quickly change focus throughout this range of vision is called accommodation.

Unfortunately, this ability diminishes as we grow older, causing us to become dependent on bifocals or reading glasses. However, the AcrySof® ReSTOR® IOL was designed to provide quality near to distance vision by combining the strengths of apodized diffractive and refractive technologies. Similar technology has been used for years in microscopes and telescopes to improve image quality, and has now been patented for use in intraocular lenses.

Apodized Diffractive

Apodization is the gradual tapering of the diffractive steps from the center to the outside edge of a lens to create a smooth transition of light between the distance, intermediate and near focal points. Diffraction involves the bending or spreading of light to multiple focal points as it passes through the lens. On the AcrySof® ReSTOR® IOL, the center of the lens surface consists of an apodized diffractive optic. This means that the series of tiny steps in that center area work together to focus light for near through distance vision.


Refraction involves the redirection of light passing through the lens, to focus on the retina. The refractive region of the AcrySof® ReSTOR® IOL bends light as it passes through the lens to a focal point on the retina. This outer ring of the AcrySof® ReSTOR® IOL surrounds the apodized diffractive region and is dedicated to focusing light for distance vision.

The lens of your eye works much like a lens of a camera. Made mostly of protein and water, the lens focuses light images onto the retina, where signals are converted and signals are then sent onto the brain. Cataracts, a clouding of the natural lens can keep light and images from reaching the retina. Sharp images become blurry, bright colors become dull and seeing at night can become much more difficult. Cataracts can be caused by eye injury, diseases, chemicals or medications, but 90% of the cases are caused by the simple process of aging. More than 50% of people over the age of 60, as well as many younger than that suffer from this ailment. There is no medical treatment to reverse or prevent the development of cataracts. The best way to treat a cataract is to remove the old, clouded lens, and replace or exchange it with a new clear one.

In 1949, Intra-Ocular Lens or IOL's were first introduced. These lenses were of a "single-vision" type, meaning that they could correct for middle or distance vision, but patients probably would still need glasses for full range vision such as reading or middle distance vision. Cataract surgery was considered risky and required a lengthy hospital stay.

Cataract surgery has undergone tremendous technological advances since the days of your parents and grandparents. IOL's are still used very successfully today, but the advances in surgery, lens and visual quality as well as patient satisfaction have increased tremendously.

The Khanna Institute of LASIK & Refractive Surgery has offices in Westlake Village, Beverly Hills and Valencia. Rajesh Khanna, MD is an internationally recognized cataract surgeon and has been noted for his skills and use of ultra-small incisions which measure less than 1 mm in diameter.

If you suspect the development of cataracts and would like more information on the lens replacement procedure or the multi-focal lens, you can contact the Khanna Institute at 1-805-230-2126 or email us today. Most insurances cover part of the cost.

ReSTOR® Questions

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Beverly Hills Lasik Disclaimer: Dr. Khanna serves the eyecare community in Beverly Hills, Los Angeles and surrounding areas. This site is for informational purposes only. It is not intended to be medical advice for those seeking eye surgery, but to provide information about the Los Angeles, California eye surgery practice of Rajesh Khanna, M.D.