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Impressum
Comparing bilateral multifocal , bilaterl bifocal and one eye bifocal and the other monofocal IOL implantation
Pieh S., Lackner B., Schmidinger G., Ruhswurm I., Italon C., Skorpik C.
Universitätsklinik für Augenheilkunde und Optometrie, Refraktive Ambulanz, Wien, Österreich
Purpose: To compare visual abilities in patient with bilateral
monofocal, bilateral multifocal and one eye monofocal and the other one
multiofocal IOL implantation
Method: The fist group, patients with a monofocal intraocular lens
in both eyes consists of 14 patients, the second group with multifocal
lens in both eyes of 16 patients and the number of patients in the third
group with a combination of a multifocal and a monofocal IOL is 17. The
multifocal lens was a diffractive bifocal 811E (Pharmacia), as monofocal
lens the 811 C (Pharmacia) was used. Visual acuity without correction
and with best correction was tested monoculary and bilateral. Halo size
was determined using a computer program Glare&Halo (Tomey) for each
eye and bilateral. Further the glass wearing behaviour had been recorded.
Results: Visual acuity without correction was in the first group
monoculary Snellen 0.57 ± 0.19 and with correction 0.98 ±
0.16 and 0.60 ± 0.17 and 1.02 ± 0.14 binocular. The halo
size testing monoculary was 0.24 square degrees ± 0.10 and 0.25
± 0.11 binocular. In the second group the visual acuity was monoculary
0.55 ± 0.14 and 0.95 ± 0.13, binocular 0.58 ± 0.12
and 0.98 ± 0.12. Halo size was 1.04 ± 0.5 unilateral and
1.01 ± 0.51 bilateral. In the third group the eyes with the a monofocal
lens achieved 0.54 ± 0.16 and 0.97 ± 0.14, with the multifocal
IOL attained 0.60 ± 0.15 and 0.97 ± 0.14, bilateral 0.62
± 0.10 and 1.0 ± 0.11. The halo size was for the monofocal
eyes in this group 0.23 ± 10, for the multifocal eyes 1.02 ±
0.42 and 0.98 ± 0.38 bilateral.
Conclusion: The combination of a monofocal IOL implantation in
one eye and a bifocal IOL implantation in the other eye is a satisfying
possibility for cataract patients allowing a trouble-free short time reading
in near distance.