BACKGROUND: Laboratoires Domilens, Lyon, France, has introduced a new aspheric multifocal @entity2790 ( @entity2790 ), the Progress 3. The central portion, measuring 4.7 mm in diameter, has an anterior surface of progressively increasing power, such that there is a central add of +5.00 dioptres. We compared contrast sensitivity and depth of focus in @entity1 who received the Progress 3 and in those who received a conventional monofocal @entity2790 . METHODS: Prospective study. Forty @entity1 with age-related @entity231 were randomly divided into two groups: 20 @entity1 received the Progress 3 aspheric multifocal @entity2790 , and 20 @entity1 received a conventional monofocal @entity2790 of similar design. Contrast sensitivity was measured with the Pelli-Robson letter-based chart. Depth of focus was determined by dialling a series of overcorrections over the @entity1 's manifest refraction until the @entity1 read 6/12 clearly. The depth of focus was defined as the range over which 6/12 or better acuity was achieved. @entity227 was evaluated by @entity1 questionnaire. RESULTS: Mean contrast sensitivity was significantly lower in the @entity1 with a multifocal @entity2790 than in those with a monofocal @entity2790 (1.38 vs. 1.56 log units) (p < 0.001). The mean depth of focus values for the two groups were 3.10 D and 1.65 D respectively (p < 0.001). The prevalence of subjective problems was similar in the two groups. INTERPRETATION: In our opinion, aspheric multifocal IOLs should be reserved for @entity1 who are willing to trade increased depth of focus for reduced contrast sensitivity postoperatively.

Contrast sensitivity and depth of focus with aspheric multifocal versus conventional monofocal XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity2790 :: ('MESH:D009798', 'Disease') :: ['IOL', 'intraocular lens'] @entity227 :: ('MESH:D014786', 'Disease') :: ['Quality of vision'] @entity231 :: ('MESH:D002386', 'Disease') :: ['cataract']
@entity2790 :: (MESH:D009798,Disease) :: ['intraocular lens']
