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Multifocal intraocular lens: a new development in aphakic visual rehabilitation
Annals of the Academy of Medicine, Singapore
|November 1, 1990
Summary
Multifocal intraocular lenses (IOLs) offer a bifocal effect, reducing the need for reading glasses. A study found 90% of patients achieved good near vision with their distance correction after IOL implantation.
Area of Science:
- Ophthalmology
- Biomedical Engineering
Background:
- Multifocal intraocular lenses (IOLs) have been available for 3-4 years.
- Designed to provide a bifocal effect, reducing spectacle dependence for near vision.
Purpose of the Study:
- To retrospectively analyze the visual outcomes of patients implanted with multifocal IOLs.
- To evaluate the effectiveness of multifocal IOLs in achieving spectacle independence for near vision.
Main Methods:
- Retrospective analysis of 104 eyes implanted with multifocal IOLs.
- Follow-up duration ranged from two months to one year.
- Patients were randomly selected; two were excluded due to macular degeneration.
Main Results:
- 93% of eyes achieved a best-corrected distance visual acuity of 6/6-6/12.
- 97% of eyes achieved a near visual acuity of N5-N6.
- 90% of patients achieved satisfactory near vision without additional refractive correction.
Conclusions:
- Multifocal IOLs demonstrate significant potential in improving uncorrected near visual acuity.
- A high percentage of patients achieve good distance and near vision, reducing spectacle dependence.
- Further studies assessing the quality of vision are warranted.