Relationship of Contrast Sensitivity Measured Using Quick Contrast Sensitivity Function With Other Visual Functions in a Low Vision Population

Stalin, Amritha; Dalton, Kristine

doi:10.1167/iovs.61.6.21

Cited by 13 publications

(7 citation statements)

References 51 publications

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“…Besides BCVA and fine stereopsis, CSF is also a nonnegligible clinical parameter. CSF is the ability to differentiate luminance variations between adjacent areas and offers a more complete assessment of spatial vision, which is more representative in performing everyday visual tasks, such as driving and perceiving faces [ 43 ]. It is generally believed that the CSF of amblyopic eyes declines, especially in moderate and high spatial frequencies [ 44 ].…”

Section: Discussionmentioning

confidence: 99%

The Study of Short-Term Plastic Visual Perceptual Training Based on Virtual and Augmented Reality Technology in Amblyopia

Tan

Yang

Fan

et al. 2022

Journal of Ophthalmology

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Backgrounds. The treatment for amblyopia can have a substantial impact on quality of life. Conventional treatments for amblyopia have some limitations, then we try to explore a new and effective method to treat amblyopia. This study aimed to determine the potential effect of short-term plastic visual perceptual training based on VR and AR platforms in amblyopic patients. Methods. All observers were blinded to patient groupings. A total of 145 amblyopic children were randomly assigned into 2 groups: VR group (71 patients) and AR group (74 patients). In the VR group, each subject underwent a 20-min short-term plastic visual perceptual training based on a VR platform, and in the AR group, based on an AR platform. The best-corrected visual acuity (BCVA), fine stereopsis, and contrast sensitivity function (CSF) were measured before and after training. Results. The BCVA (P < 0.001) and fine stereopsis (P < 0.05) were improved significantly both in VR and AR group after training. Moreover, in the AR group, the CSF showed the value of all spatial frequencies had a statistically signiﬁcant improvement after training (P < 0.05), while in the VR group, only the value of spatial frequency 12 improved significantly (P = 0.008). Conclusions. This study showed that the short-term plastic visual perceptual training based on VR and AR technology can improve BCVA, fine stereopsis and CSF of refractive amblyopia. It was suggested that the visual perceptual training based on the VR and AR platforms may be potentially applied in treatment for amblyopia and provided a high-immersing alternative.

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Section: Discussionmentioning

confidence: 99%

The Study of Short-Term Plastic Visual Perceptual Training Based on Virtual and Augmented Reality Technology in Amblyopia

Tan

Yang

Fan

et al. 2022

Journal of Ophthalmology

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“…In our daily life, relative motion can be constantly observed between observers and objects. Dynamic visual acuity (DVA) defines the ability to identify the details of an object with relative motion (Ao et al, 2014; Ren et al, 2020; Stalin & Dalton, 2020; Wu et al, 2021). DVA is crucial for driving and in sports performance, including baseball, (Uchida et al, 2013) volleyball (Hoshina et al, 2013) and motor sports (Schneiders et al, 2010).…”

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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“…Previous studies have shown a correlation between CSF and VA in a population with low VA population. [21] However, no significant correlation between CSF and VA was reported in a population with normal VA. [22] A possible explanation for the lack of significant differences in the analysis of interocular differences in CS with respect to interocular spherical refraction may be the concentrated CDVA distribution in the patients of this study and its good performance at low spatial frequencies, as mild retinal changes although not significant may have occurred, while significant retinal changes may exist in patients with amblyopia [20]. Therefore, it could be concluded that the spherical refraction may obscure the analysis of contrast sensitivity at low spatial frequencies; The interocular comparison suggested that eyes with lower cylindrical refraction tended to show higher CS at high spatial frequencies.…”

Section: Discussionmentioning

confidence: 98%

A novel quick contrast sensitivity function test in Chinese adults with myopia and its related parameters

Aruma

Zhao

et al. 2023

Graefes Arch Clin Exp Ophthalmol

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Purpose This study is to investigate the contrast sensitivity function (CSF) using the quick CSF (qCSF) test in Chinese adults with myopia. Methods This case series study included 320 myopic eyes of 160 patients (mean age 27.75 ± 5.99 years) who underwent a qCSF test for acuity, area under log CSF (AULCSF), and mean contrast sensitivity (CS) at 1.0, 1.5, 3.0, 6.0, 12.0, and 18.0 cycle per degree (cpd). Spherical equivalent, corrected-distant visual acuity (CDVA), and pupil size were recorded. Results The spherical equivalent, CDVA (LogMAR), spherical refraction, cylindrical refraction, and the scotopic pupil size of the included eyes were − 6.30 ± 2.27 D (− 14.25 to − 0.88 D), 0 ± 0.02, − 5.74 ± 2.18 D, − 1.11 ± 0.86 D, and 6.77 ± 0.73 mm, respectively. The AULCSF and CSF acuity were 1.01 ± 0.21 and 18.45 ± 5.39 cpd, respectively. The mean CS (log units) at six different spatial frequencies were 1.25 ± 0.14, 1.29 ± 0.14, 1.25 ± 0.14, 0.98 ± 0.26, 0.45 ± 0.28, and 0.13 ± 0.17, respectively. A mixed effect model showed significant correlations between age and acuity, AULCSF, and CSF at 1.0, 12.0, and 18.0 cpd. Interocular CSF differences were correlated with the interocular difference of spherical equivalent, spherical refraction (at 1.0 cpd, 1.5 cpd), and cylindrical refraction (at 12.0 cpd, 18.0 cpd). The lower cylindrical refraction eye had higher CSF compared with the higher cylindrical refraction eye (0.48 ± 0.29 vs. 0.42 ± 0.27 at 12.0 cpd and 0.15 ± 0.19 vs. 0.12 ± 0.15 at 18.0 cpd). Conclusions The age-related decrease in contrast sensitivity is at low and high spatial frequencies. Higher-degree myopia may show a decrease in CSF acuity. Low astigmatism was noted to affect the contrast sensitivity significantly.

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Relationship of Contrast Sensitivity Measured Using Quick Contrast Sensitivity Function With Other Visual Functions in a Low Vision Population

Abstract: Relationship of contrast sensitivity measured using quick contrast sensitivity function with other visual functions in a low vision population.

Cited by 13 publications

References 51 publications

The Study of Short-Term Plastic Visual Perceptual Training Based on Virtual and Augmented Reality Technology in Amblyopia

The Study of Short-Term Plastic Visual Perceptual Training Based on Virtual and Augmented Reality Technology in Amblyopia

Dynamic Visual Acuity After Small Incision Lenticule Extraction for Myopia Patients

A novel quick contrast sensitivity function test in Chinese adults with myopia and its related parameters

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