| a href=" rel="nofollow" rel="tag">standard | | | | vision at multiple distances, monovision with |
| monofocal IOLs can only provide clear distance | | | | multiple IOLs can maintain stereopsis and avoid |
| vision and require patients to wear reading glasses | | | | amblyopia. Several combinations of different |
| for close vision, presbyopia-correcting IOLs with | | | | types of IOLs are reported to provide high rates |
| multifocal designs are approved to offer clear | | | | of independence from rimless eye glasses. |
| vision at multiple distances. There are three | | | | Multifocal IOLs are not suitable for extreme |
| brands of multifocal IOLs that are FDA-approval: | | | | perfectionists, since their expectations can hardly |
| AcrySof IQ ReSTOR, ReZoom and Tecnis. | | | | be met. In fact, some people are not good |
| The original version of AcrySof IQ ReSTOR | | | | candidates for multifocal IOLs. People requiring |
| changes the way light is directed when it falls on | | | | great night vision should not receive multifocal |
| its different zones to achieve vision at multiple | | | | IOLs, because these IOLs may cause night glare |
| distances, while the newer version provides better | | | | and halos. Multifocal IOLs should still exclude people |
| intermediate vision. ReZoom is actually an | | | | with high level of astigmatism, retinal diseases, |
| upgrading of the Array IOL and uses different | | | | perfect near vision or low to moderate degrees |
| zones within concentric rings for multiple focuses. | | | | of myopia. |
| Tecnis also uses a diffractive lens design and has | | | | There are also many people who are favored to |
| gained both satisfying distance vision and near | | | | receive multifocal IOLs. For patients' eye |
| vision. In the future, toric designs may be applied | | | | conditions, those with good general health and |
| to multifocal IOLs, so as to provide additional | | | | active lifestyles, individuals having presbyopia and |
| astigmatism correction. | | | | people with high level of myopia are more likely to |
| Even though their candidates only account for 5% | | | | get enough satisfaction. People who are |
| to 10% of all cataract patients, some surgeons | | | | easy-going and realistic in their expectations as |
| are still considering the idea of mixing and | | | | well as those are willing to accept tradeoffs are |
| matching IOLs. For instance, they may use the | | | | also good candidates for multifocal IOLs. |
| new version of AcrySof IQ ReSTOR to enhance | | | | After receiving an IOL implantation, the patient |
| intermediate vision in one eye and the original | | | | should visit the doctor periodically, in case of |
| ReSTOR to bring sharper near vision in the other | | | | some implant-related changes. Another important |
| eye. This is exactly an application of monovision. | | | | factor that the patient should know is that |
| If monovision is applied to single vision IOLs, the | | | | multifocal IOLs require out-of-pocket fees, |
| traditional problems such as uncoordinated eyes | | | | because most Medicare and insurance plans only |
| may occur, which leads to amblyopia or lazy eye. | | | | cover standard IOLs. |
| Since multifocal IOLs themselves can provide | | | | |