Significant improvement in dynamic visual acuity after XXXX surgery: a promising potential parameter for functional vision.

@entity1 @entity227 @entity231 @entity9288 @entity9510
PURPOSE: @entity227 ( @entity227 ) is a relatively independent parameter for evaluating the ability to distinguish details of a moving target. The present study has been designed to discuss the extent to which age-related @entity231 impacts @entity227 in elderly individuals and to determine whether it could be restored after bilateral phacoemulsification combined with intraocular lens implantation surgery. METHODS: Twenty-six elderly @entity231 @entity1 scheduled for binocular @entity231 surgery and 30 elderly volunteers without @entity231 were enrolled in the study. @entity227 at 15, 30, 60 and 90 degree per second (dps) was assessed, and velocity-dependent visual acuity decreases between consecutive speed levels were calculated. RESULTS: Compared with the control group, the @entity1 group exhibited significantly worse @entity227 performance at all speed levels (p<0.001), and the decreases in velocity-dependent visual acuity were more serious in the @entity1 group at the intervals of 0-15 dps (p<0.001), 15-30 dps (p=0.007) and 30-60 dps (p=0.008). Postoperatively, @entity227 performance at every speed level in the @entity1 group clearly improved (p<0.001) and recovered to levels compatible to the control group. The decrease in visual acuity with increasing speed was less pronounced than during the preoperative phase (p0-15 dps=0.001, @entity9288 -30 dps<0.001 and @entity9510 -60 dps=0.001) and became similar to that of the control group. The postoperative visual benefit regarding @entity227 was more pronounced than the improvement in static visual acuity ( @entity9288 dps=0.001 and p<0.001 at 30 dps, 60 dps and 90 dps). CONCLUSIONS: The impact of age-related @entity231 on @entity227 was more severe than its effects on static visual acuity. After @entity231 surgery, not only static vision of the @entity1 was restored markedly, but also the dynamic vision. @entity227 could be an important adjunct to the current evaluation system of functional vision, thereby meriting additional attention in clinical assessment.
