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Category Archives: LASIK

The Emergence of Adaptive Optics

The billion dollar Hubble Telescope has been assisting astronomers for nearly two decades now, gathering information about our own Milky Way galaxy and the rest of our universe. The entire project has not been without problems, however. Shortly after its launch in 1990, it was discovered that the mirror contained significant spherical aberration that affected the performance of the telescope. A system was developed called COSTAR, Corrective Optics Space Telescope Axial Replacement, which used two mirrors in the light path to correct for the aberration in the main mirror. With this adaptation, astronomers could achieve the accuracy and clarity that they were hoping for.

Adaptive optics relies upon a secondary set of mirrors that are in place to adjust for errors within the main optical system. While the Hubble is one example of this, our own eyes can benefit from the advances made through adaptive optics. Continue reading →

Presbyopia (Old Eyes) Vision Correction

Presbyopia is the term for the diminishing ability to focus on up-close objects with age. While the ability to focus on near objects grows progressively worse beginning at birth, it is often first noticed at age 40 when the near focus is approximately 40 cm. Since this is a standard reading distance, it is this age that people most often feel that they are losing there near vision. In fact, the ability to focus has grown progressively worse since childhood.

Consider this. A ten year old can focus clearly on a book located 7 cm from his face while a twenty-five year old must now hold the book 10 cm from his face. The loss of 3 cm of focus may be hardly noticeable but is equivalent to a loss of four diopters of focusing ability. As the person ages another fifteen years and loses another four diopters of accommodation, they can now focus at a distance of 16 cm for short periods of time and comfortably for long periods of time at about 33 cm. The forty year old will begin to notice that near vision is not as easy as it once was.

What options are there in correcting near vision? Continue reading →

LASIK Surgeons now offer world’s most advanced LASIK technology ” blade-free intralase method ” to U.S. residents

Irvine, CA – The world’s most advanced LASIK vision correction technology – the 100 percent blade-free IntraLase Method – is now available for prospective LASIK patients looking to trade their sight-diminishing myopia (nearsightedness), hyperopia (farsightedness) or astigmatism (oval corneal curvature) for 20/20 or better vision without metal-blade surgery. Leading ophthalmic surgeons across the country are offering this advanced technology, which enhances safety the LASIK procedure and takes more of the millions of Americans who suffer from these eye conditions to 20/20 and beyond.

Continue reading →