What is the best option between Rezoom, Restor or Crystalens corrective eye surg!


Question:

What is the best option between Rezoom, Restor or Crystalens corrective eye surgery?


Answers:

Wow! I haven't come across a questions as interesting as this one yet.

A bit of basic physiology first...

Accomodation is a process in which our natural lenses increase diopteric power when we focus from far to near. All individuals are born with normal accomodation but as we age, we ALL lose some accomodative power due to the hardening of our natural lens which is in turn due to aging. This is termed as PRESBYOPIA. This is the reason why, sooner or later EVERYONE will need reading glasses.

Up until a few years ago, Intra-ocular lenses (IOLs) have all been monofocal (having only ONE focal point) and thus can not adjust between far and near. Patients who have been operated on for cataracts generally still need reading glasses.

This is no longer true...

Rezoom (AMO) and Restor (Alcon) are both multifocal intra-ocular lens implants (IOLs). Multi-focal IOLs offer "pseudo-accomodation." These lenses DO NOT adjust between far and near, but these provide several focal points that the patient can "choose" from and effectively provide the sensation of being able to focus between far and near. Therefore, patients NO LONGER NEED reading glasses after a multi-focal lens is implanted.

The difference between the two lenses is the method in which they achieve their multi-focality. There are several studies available which compares the two, but it's really still up for grabs as to which one is better. I have more experience with the Restor lens and my patients seem to be satisfied with it. I know of eye doctors implanting Rezoom and their patients seem happy with it too.

There is however, a very strict criteria for qualifying for multi-focal implantation which is better discussed with your eye doctor.

The CRYSTALENS on the other hand is an accomodating lens. It's not a multifocal lens. Its a lens that ACTUALLY ADJUSTS between far and near. It's not the only one, there are several being developed, but it's the first one in the US market. I haven't had any experience with this lens, but it seems quite promising.

If I had cataracts and needed implants. I would want ACCOMODATING LENSES in my own eyes. I just hope they've perfected the technology by the time I need these lenses.




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