Optics diameter of IOL

I just found that the optics diameter of Crystalens HD is 5 mm while most of the optics diameter of mono-focal IOL are 6 mm. What are the diameters of other multi-focal IOL like RESTOR, REZOOM ?
Will the optics diameter of 5mm of Crystalens cause more glare and holos ?
Does Crystalens HD improved regarding the glare and holos compared to Crystalens AT45 due to a 0.5 mm bigger in optics diameter ?
Thanks

[Ray T Oyakawa, MD]

I have not found that the incidence of glare and halos are more with the Crystalens compared to a standard monofocal and definitely less than the ReZoom and ReStor.

According to Dr. Jack Holladay, an optics expert and the inventor of a few formula to calculate IOL power, the more posterior position of the Crytalens results in a larger effective diameter.

The Crystalens HD had more problems compare with the AT50.  The current Crystalens is the aspheric model.


Dr. O.

[Ray T Oyakawa, MD]

I have not found that the incidence of glare and halos are more with the Crystalens compared to a standard monofocal and definitely less than the ReZoom and ReStor.

According to Dr. Jack Holladay, an optics expert and the inventor of a few formula to calculate IOL power, the more posterior position of the Crytalens results in a larger effective diameter.

The Crystalens HD had more problems compare with the AT50.  The current Crystalens is the aspheric model.


Dr. O.

[taurus1203]

Dr Oyakawa:
Thanks for your explanation as I thought aspheric model is older than HD.
My understanding is Crystalens was launched in 2008. When is aspheric model launched ? Is there any survey indicates the aspheric model is better ?

Thanks again

[taurus1203]

Dr Oyakawa:
When I searched for the archive in medhelp.org, I just found that you also have the Crystalens AO implanted last year (a months before the general release).
Would you mind share some your experience with this IOL ? Do you need to have some special exercise everyday to get your cilary muscle to adapt to the lens ?

Thanks

[Ray T Oyakawa, MD]

The quality of vision is very good I see about 20/25 due to macular problems.  The accommodation is about 1.5 diopters.  However,  I have  a scleral buckle which will affect accommodation.

Dr. O.

[taurus1203]

Oyakawa:
I guess the accomodation of 1.5 diopter is not bad.  However, how much effect will scleral buckle to the accomodation ? I also has a buckle and am not sure will I can enjoy the accomodation provided by the crystalen ? Can eye exercise is needed for utilize the lens ?