|Lasers may be |
used in the future
| The Future |
What does the future hold for cataract surgery? The risk in anticipating the future of any specialty is that something unpredictable, often originating in another field, will change the course of medical care forever. The turnover rate for both medical knowledge and technology is about 50% every four to five years.
During the past three decades, the techniques and results of cataract surgery in the United States have changed dramatically. Ultrasonic phacoemulsification is now the method of choice for most surgeons.
Improved surgical techniques for removing the anterior lens capsule have decreased the incidence of both intra-operative (during surgery) and post-operative (after surgery) capsular complications.
Along with these advances have come some amazing advancements in intraocular lens materials and designs, which are especially well suited for use with even smaller incisions (eventually as small as 1-mm). Improved incision construction allows healing usually without sutures. Smaller incisions require shorter recovery time and allow greater control and safety.
Lasers are beginning to be used to remove cataracts - Q-switched, pulsed, 1064-nm Nd:YAG laser for 1-stage, direct photolysis of cataracts. This technology is still in its relative infancy when compared to the latest ultrasonic cataract machines. The theoretical advantages of using a laser to remove cataracts might be the ability to use fiber optics with a smaller than typical ultrasonic probes and to direct energy precisely on target tissue by means of a smooth, blunt, stationary probe. According to predictions, the use of laser might reduce the occurrence of heat and vibration in the wound, decreasing the chance of capsular rupture, and allowing even smaller incisions and faster recovery.
In Dr. Seibel's opinion as an expert in the field and a consultant to
the industry, laser technology needs further development before it reaches the
extreme level of versatility, refinement and support existing in the current
state-of-the-art ultrasonic cataract machines.
Other future technologies to watch include electromagnetic techniques (liquefying
a cataract with a tiny magnetic bead spinning inside the lens), endocapsular
vortex emulsification (liquefying the lens with a high-speed rotary impeller),
and improved accommodating lenses (made of biomaterials such as elastic collagen)
and multifocal IOLs (which work as an internal bifocal or trifocal lens). Another
promising new development is the application of laser to alter the power or cylinder
of IOLs after implantation.
Phakic intraocular lens technologies that address, not only astigmatism but also
hyperopia and myopia with presbyopia, are going to become more available. The
future of cataract surgery may involve the removal of the presbyopic crystalline
lens in 40 to 50- year-olds, before the lens has time to become a cataract, and
replace it with either a multifocal or accommodating implant. Based on the increasing
acceptance of prophylactic clear lens extraction, cataracts may be a rarity 20
years from now.
On separate pages, see:
Seibel Vision Surgery
11620 Wilshire Boulevard, Suite 711
Los Angeles, California 90025
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Vision Surgery specializes in cataract surgery and LASIK laser vision
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| Cataracts may be |
a rarity 20 years