Objective and subjective visual performance of multifocal contact lenses: Pilot study

Vasudevan, Balamurali; Flores, Michael H.; Gaib, Sara

doi:10.1016/j.clae.2013.09.013

Cited by 26 publications

(41 citation statements)

References 14 publications

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“…Interestingly, considerably lower rates of stereopsis were achieved with multifocal designs in this study than those reported for the same designs in previous studies (21-54 seconds of arc) (15,19) , even when considering only the mild presbyopia group in this study. We believe that this discrepancy may attributable to the inclusion of a wider age range of patients with presbyopia in this study who fell into the mild presbyopia group and the different evaluation methods used.…”

Section: Discussioncontrasting

confidence: 77%

“…We believe that this discrepancy may attributable to the inclusion of a wider age range of patients with presbyopia in this study who fell into the mild presbyopia group and the different evaluation methods used. However, variability in stereopsis measurements for multifocal lenses has been previously reported (15,20,21) . In this study, HCVA at near distances that were recorded with all lenses were lower than pre viously reported values (15,(20)(21)(22)(23)(24)(25) , which is primarily attributable to the difference in methodology.…”

Section: Discussionmentioning

confidence: 95%

“…However, variability in stereopsis measurements for multifocal lenses has been previously reported (15,20,21) . In this study, HCVA at near distances that were recorded with all lenses were lower than pre viously reported values (15,(20)(21)(22)(23)(24)(25) , which is primarily attributable to the difference in methodology. Unlike other studies, we sought to measure the smallest paragraph that patients could "comfortably" read, which involved an additional subjective element in the objective resolution task.…”

Section: Discussionmentioning

confidence: 95%

“…AOP is a center-distance design featuring distance and near concentric rings that are designed to provide consistent vision regardless of pupil size and also incorporating negative spherical aberration (18) . A comparison of visual performance between multifocal contact lenses and a single vision contact lens (distance corrected) has not been previously conducted, although a comparison of AOMF and AOP lenses was reported by Vasudevan et al (15) In their study, no significant differences were observed in any objective or subjective variable between the lenses; however, their study only included patients with early presbyopia who were fitted with low-add lens designs. We extended our investigation to include patients with moderate and severe presbyopia, in addition to those with early presbyopia, and observed similar performance of AOMF and AOP lenses for the majority (but not all) objective and subjective variables in both the groups under the test conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Many currently used multifocal contact lenses are designed to satisfy the complex visual requirements of patients with presbyopia while minimizing the negative effects. Vasudevan et al (15) reported no significant differences in the subjective and objective visual performance of three current multifocal lenses: Air Optix® Aqua Multifocal, Acuvue® Oasys® for presbyopia, and Biofinity Multifocal. However, their study only included patients with early presbyopia who were fitted with low-add lens designs.…”

Section: Introductionmentioning

confidence: 99%

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Short-term visual performance of soft multifocal contact lenses for presbyopia

Sha¹,

Bakaraju²,

Tilia³

et al. 2016

Arquivos Brasileiros De Oftalmologia

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Purpose: To compare visual acuity (VA), contrast sensitivity, stereopsis, and subjective visual performance of Acuvue® Oasys® for Presbyopia (AOP), Air Optix® Aqua Multifocal (AOMF), and Air Optix® Aqua Single Vision (AOSV) lenses in patients with presbyopia. Methods: A single-blinded crossover trial was conducted. Twenty patients with mild presbyopia (add ≤+1.25 D) and 22 with moderate/severe presbyopia (add ≥+1.50 D) who wore lenses bilaterally for 1 h, with a minimum overnight washout period between the use of each lens. Measurements included high-and low-contrast visual acuity (HCVA and LCVA, respectively) at a distance, contrast sensitivity (CS) at a distance, HCVA at intermediate (70 cm) and near (50 cm & 40 cm) distances, stereopsis, and subjective questionnaires regarding vision clarity, ghosting, overall vision satisfaction, and comfort. The test variables were compared among the lens types using repeated-measures ANOVA. Results: Distance variables (HCVA, LCVA, and CS) were significantly worse with multifocal lens than with AOSV lens (p≤0.008), except for AOMF lens in the mild presbyopia group in which no significant difference was observed (p>0.05). Multifocal lenses had significantly greater HCVA at 40 cm than AOSV lens (p≤0.026). AOMF lens had greater intermediate HCVA than AOP lens (p<0.03). AOP lens de monstrated greater improvements in stereopsis than AOMF and AOSV lens in the moderate/severe presbyopia group (p≤0.03). Few significant differences in subjective variables were observed, with no significant difference in the overall vision satisfaction observed between lens types (p>0.05). The proportions of patients willing to buy AOSV, AOMF, and AOP lenses were 20%, 40%, and 50%, respectively, in the mild presbyopia group and 14%, 32%, and 23%, respectively, in the moderate/severe presbyopia group; however, these differences were not sta tistically significant (p≥0.159). Conclusions: Further development of multifocal lenses is required before significant advantages of multifocal lenses over single vision lens are observed in pa tients with presbyopia.

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Section: Discussioncontrasting

confidence: 77%