Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Wang, Yuexin; Guo, Yining; Wei, Shanshan; Yuan, Ya-xiang; Wu, Tingyi; Chen, Yueguo; Li, Xuemin

doi:10.3791/63864

Cited by 7 publications

(10 citation statements)

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“…Refractive surgery and spectacles differently affect the projection of objects on the central and peripheral retina. Spectacles have obvious peripheral defocus and prism effects that cause unclear images projected to the peripheral retina (Bakaraju et al, 2008;Lin et al, 2010;Backhouse et al, 2012;Lewerenz et al, 2018;Wang et al, 2022b), and more difficulties in predicting the trajectory of the object. Thus, DVA following refractive surgeries was significantly better than the use of spectacles pre-operatively.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, DVA is now gradually recognized as an important evaluation index for functional vision (Ao et al, 2014;Wu et al, 2022), with important applications in sports performance (Uchida et al, 2012), driving safety evaluation (Wilkins et al, 2013;Lacherez et al, 2014), and ocular diseases (Wu et al, 2021). The previous study demonstrated that myopia significantly affects DVA when fully corrected with spectacles, and worse DVA was associated with more significant myopia (Wang et al, 2022b). Further research showed that the uncorrected DVA post-SMILE surgery is significantly better than the pre-operative corrected DVA (Wang et al, 2022a).…”

Section: Introductionmentioning

confidence: 99%

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The impact of different corneal refractive surgeries on binocular dynamic visual acuity

Wang

Guo²,

Li³

et al. 2023

Front. Neurosci.

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PurposeTo investigate the influence of different corneal refractive surgeries on dynamic visual acuity (DVA), and explore its potential influence factors.MethodsThis was a prospective non-randomized study. Adult myopic patients undergoing bilateral laser-assisted sub-epithelial keratomileusis (LASEK), femtosecond laser-assisted in situ keratomileusis (FS-LASIK), or small incision lenticule extraction (SMILE) with Plano refraction target were enrolled. Uncorrected and corrected distance visual acuity (UDVA/CDVA), manifest refraction and binocular optotype-moving DVA of 40 and 80 degrees per second (dps) were evaluated pre-operatively and post-operatively up to 3 months.ResultsThe study included 264 eyes of 132 subjects, with an average age of 27.0 ± 6.7 years, and females accounted for 59% of the participants. Significant improvement was observed at the 3-month visit for 40 dps (SMILE, P = 0.001; LASEK, P = 0.006; FS-LASIK, P = 0.010) and 80 dps (SMILE, P = 0.011; LASEK, P = 0.025; FS-LASIK, P = 0.012) DVA. Adjusting for pre-operative DVA, there was no significant difference in DVA among groups at 3 months post-operatively (P > 0.05 for multiple comparisons). Overall, multiple linear models demonstrated that post-operative DVA at 3 months was correlated with pre-operative DVA (40 dps, β = 0.349, P = 0.001; 80 dps, β = 0.447, P < 0.001), pre-operative spherical equivalent (40 dps, β = 0.311, P = 0.003; 80 dps, β = 0.261, P = 0.009) and post-operative UDVA (40 dps, β = −0.224, P = 0.024; 80 dps, β = −0.188, P = 0.05).ConclusionDynamic visual acuity at 3 months post-operatively of the three corneal refractive surgeries was better than that before the surgery in adult myopic patients, and there was no significant difference among different surgical techniques. Post-operative DVA at 3 months was found correlated with pre-operative DVA, pre-operative SE, and post-operative UDVA. With further improvement, DVA could be a promising functional visual indicator for myopic patients undergoing refractive surgeries.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The impact of different corneal refractive surgeries on binocular dynamic visual acuity

Wang

Guo²,

Li³

et al. 2023

Front. Neurosci.

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“…Eyeglasses are commonly applied to correct myopia so that myopia patients might have normal static visual acuity. Previous research demonstrated that eyeglasses worn to correct myopia impacted dynamic visual acuity, and the impact was associated with the myopic diopter (Wang et al, 2022). Additionally, an investigator showed that participants with eyeglasses tended to experience a higher risk of traffic accidents (Zhang et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Myopia markedly affects static visual acuity, which could be easily corrected with commonly used eyeglasses. However, previous research demonstrated that eyeglasses-corrected myopia has a significant impact on DVA, and the worse DVA is associated with high diopter myopia (Wang et al, 2022). Thus, eyeglasses correction might not be sufficient for participants required to pursue high speed objects in daily tasks.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Visual Acuity After Small Incision Lenticule Extraction for Myopia Patients

et al. 2022

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In the present study we compared dynamic visual acuity (DVA) of 84 eyes (for 42 adults with myopia; M age = 28.4, SD = 6.6 years; males = 38.1%, females = 61.9%) at 40 and 80 degree per second (dps) before surgery with eyeglass corrections and after a surgical procedure – a small incision lenticule extraction (SMILE). Participants underwent binocular SMILE surgery with plano refraction targets. Their eyeglass-corrected binocular DVA at 40 and 80 dps was evaluated preoperatively, and their uncorrected binocular DVA was assessed post-operatively at 1 week, 1 month and 3 months. The mean logMAR (logarithm of the minimum angle of resolution) uncorrected and corrected distance visual acuities (UDVA and CDVA) were −0.09 and −0.11 respectively, 3 months postoperatively. The mean preoperative eyeglass-corrected DVAs at 40 and 80 dps were 0.141 and 0.184, respectively, and significant improvements were observed for 40 dps and 80 dps DVAs 3 months postoperatively. Pearson’s correlations were statistically significant between the postoperative DVAs at 3 months and for both the preoperative DVA and postoperative UDVA at both 40 dps and 80 dps. The change in the DVAs at 3 months were significantly associated with the preoperative DVAs at 40 dps and 80 dps. In conclusion, myopic patients’ DVAs significantly improved following SMILE in comparison to corrected preoperative visual acuity when wearing eyeglasses. The post-SMILE DVA was associated with both the preoperative DVA and the postoperative UDVA.

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“…The data potentially establishes an IOL selection system based on the dynamic visual function, which is particularly essential for patients with additional requirements for driving and sports. It is noteworthy that the dynamic VA is significantly affected by the degree of refractive error if the refractive error is corrected with glasses [ 27 ]. The intrinsic prism and peripheral defocus effect of the glasses might influence the observance of moving targets.…”

Section: Discussionmentioning

confidence: 99%

Comparison of dynamic defocus curve on cataract patients implanting extended depth of focus and monofocal intraocular lens

Wang²,

Yu³

et al. 2023

Eye and Vis

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Background The aim of the study was to compare the dynamic defocus curve on patients post-implantation of the extended depth-of-focus (EDOF) and monofocal intraocular lens (IOL). Methods A total of 62 age-related cataract patients receiving phacoemulsification with implantation of TECNIS Symfony (ZXR00) or monofocal IOLs were enrolled. The binocular static and dynamic defocus curves with corrected distance visual acuity were evaluated at one month postoperatively. Results The ZXR00 group achieved significantly better intermediate (P = 0.044) and near (P = 0.017) visual acuity (VA) than the monofocal group. Two groups had similar uncorrected and corrected distance VA (P > 0.05, respectively). The dynamic defocus curve revealed a smoother decline from 0.0 D to − 2.0 D in the ZXR00 group. Defocused dynamic VA in the ZXR00 group was significantly better (P < 0.05) except at 0.0 D (P = 0.724) and − 0.5 D (P = 0.176). The area under the curve (P = 0.002) and corrected dynamic vision accommodation (P = 0.001) derived from the dynamic defocus curves were better in the ZXR00 group. A positive correlation was observed between defocused dynamic and static VA in both groups (P < 0.001). Multiple linear regression analysis indicated that defocused static VA and corrected dynamic vision accommodation were significant influential factors for the defocused dynamic VA from − 1.0 D to − 3.0 D (P < 0.05). Conclusions The EDOF IOL provided similar distance vision, better intermediate and near vision, and a better overall dynamic defocus curve than the monofocal IOL. The dynamic defocus curve may be comprehensively applied to evaluate the all-distance dynamic visual performance post-cataract surgery.

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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

Cited by 7 publications

References 0 publications

The impact of different corneal refractive surgeries on binocular dynamic visual acuity

The impact of different corneal refractive surgeries on binocular dynamic visual acuity

Dynamic Visual Acuity After Small Incision Lenticule Extraction for Myopia Patients

Comparison of dynamic defocus curve on cataract patients implanting extended depth of focus and monofocal intraocular lens

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