Neutralization method for detecting the incidence of color perception changes after cataract surgery

Miyata, Akira

doi:10.1016/j.jcrs.2014.07.040

Cited by 6 publications

(6 citation statements)

References 26 publications

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“…To minimize this effect, yellow intraocular lenses (IOLs) are implanted. Miyata found that the incidence of cyanopsia was higher with clear IOLs than with yellow IOLs [45]. In our study, all of the patients had cataract surgery with implantation of the yellow AcrySof IQ Monofocal IOL a few weeks prior to scheduled vitrectomy, so we assume that cataract surgery was not significant in our evaluation of colour vision outcomes.…”

Section: Discussionmentioning

confidence: 78%

Long-Term Anatomic and Functional Outcomes after Macular Hole Surgery

Kaźmierczak

Stafiej

Stachura

et al. 2018

Journal of Ophthalmology

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Aim To evaluate the structural and functional outcomes in patients who underwent macular hole (MH) surgery in the long-term follow-up. Materials and Methods Forty-four eyes of 40 patients (28 females and 12 males) were examined. The examination included visual acuity, optical coherence tomography, and colour vision testing. The same evaluation was performed in 30 fellow eyes. Results MH closure was obtained in 42 eyes (95.45%). There was no reopening of the initially closed MHs. In long-term postoperative examination, we observed IS/OS junction defects in 28 (63.6%) eyes and ELM defects in 19 (43.2%) eyes. We found that the IS/OS junction defects correlated with the diameter of the MH (p=0.016), whereas ELM defects correlated with both the diameter of the MH (p=0.001) and duration time of the MH (p=0.008). The presence of ELM defects in OCT was the cause of inferior BCVA in long-term observation time (p=0.004). The mean BCVA before the MH surgery was 0.15. It improved significantly both in early (p < 0.001) and long-term postoperative observation (p < 0.005). Generally, the functional outcomes were better in eyes with short-time duration of the MH, when a smaller diameter (<400 μm) of the hole was measured and a V-shaped closure of the MH and the restoration of the ELM line on OCT were present. Pseudoprotanomaly was noted in 13 (35.1%) eyes. In the fellow eye group, mean BCVA was 0.95 (range, 0.6–1.0). In 3 eyes, we detected vitreomacular traction, and in 4 eyes, initial cataract. These conditions, as well as probably early stage of diabetes mellitus, influenced functional outcomes of studied eyes. Conclusions The anatomic and functional outcomes after macular surgery are satisfactory and improve with time. After a successful closing of the MH, the restoration of the retina progresses at a slower pace than improvement in visual acuity.

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Section: Discussionmentioning

confidence: 78%

Long-Term Anatomic and Functional Outcomes after Macular Hole Surgery

Kaźmierczak

Stafiej

Stachura

et al. 2018

Journal of Ophthalmology

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“…The study comprised one eye of patients implanted with a UV-only filtering IOL (Acrysof SA60AT; n =57), known as Group 1, and one eye (of different patients) implanted with the blue light-filtering IOL (Hoya AF-1 YA60BB; n =96), known as Group 2, and a further reference group ( n =41) comprising healthy patients without either cataract or prior cataract surgery. 65 Although cyanopsia did occur more frequently in Group 1 than in Group 2 one month postoperatively (14.5 vs 4.9% P =0.049), this difference was no longer significant 3 months following surgery (9.1 vs 5.2% P >0.05).…”

Section: The Rationale and Evidence Base Upon Which Implantation Of Bmentioning

confidence: 78%

“…A retrospective study (evidence level 3b, Table 1 ) designed to compare the prevalence of cyanopsia (seeing everything tinged with blue) in eyes implanted with either a UV-only filtering IOL or a blue light-filtering IOL, 65 where cyanopsia was graded on the basis of white gradation cards (in a system known as the neutralization method), has been reported. The study comprised one eye of patients implanted with a UV-only filtering IOL (Acrysof SA60AT; n =57), known as Group 1, and one eye (of different patients) implanted with the blue light-filtering IOL (Hoya AF-1 YA60BB; n =96), known as Group 2, and a further reference group ( n =41) comprising healthy patients without either cataract or prior cataract surgery.…”

Section: The Rationale and Evidence Base Upon Which Implantation Of Bmentioning

confidence: 99%

The evidence informing the surgeon’s selection of intraocular lens on the basis of light transmittance properties

Kelly

Nolan

et al. 2016

Eye

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In recent years, manufacturers and distributors have promoted commercially available intraocular lenses (IOLs) with transmittance properties that filter visible short-wavelength (blue) light on the basis of a putative photoprotective effect. Systematic literature review. Out of 21 studies reporting on outcomes following implantation of blue-light-filtering IOLs (involving 8914 patients and 12 919 study eyes undergoing cataract surgery), the primary outcome was vision, sleep pattern, and photoprotection in 9 (42.9%), 9 (42.9%), and 3 (14.2%) respectively, and, of these, only 7 (33.3%) can be classed as high as level 2b (individual cohort study/low-quality randomized controlled trials), all other studies being classed as level 3b or lower. Of the level 2b studies, only one (14.3%) found in favor of blue-light-filtering IOLs vs ultraviolet (UV)-only filtering IOLs on the basis of an association between better post-operative contrast sensitivity (CS) at select frequencies with the former; however, that study did not measure or report CS preoperatively in either group, and the finding may simply reflect better preoperative CS in the eyes scheduled to be implanted with the blue-light-filtering IOL; moreover, that study failed to measure macular pigment, a natural preceptoral filter of blue-light, augmentation of which is now known to improve CS. In terms of photoprotection, there is no level 2b (or higher) evidence in support of blue filtering IOLs vs UV-only filtering IOLs. On the basis of currently available evidence, one cannot advocate for the use of blue-light-filtering IOLs over UV-only filtering IOLs.

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“…Unlike the prolonged course of age-related cataracts, phacoemulsification surgery instantly restored the transparency of ocular media but did not modulate the increased signals. This may be a key point in interpreting subjective experiences of colour appearance postoperative, which has been termed cyanopsia [22].…”

Section: Discussionmentioning

confidence: 99%

“…By testing for achromatic settings [19, 20] and minimum motion task [21], studies have confirmed differences in perceiving short-wavelength light between patients with senile cataracts and patients undergoing cataract surgery. However, due to the lack of comparisons between the lens of middle-aged volunteers and mildly aged lens, the status of colour vision after cataract surgery has not been discussed in the context of postoperative benefits; instead, researchers have simply named this condition as cyanopsia [22]. Past studies have only measured sensitivity to lights within specific spectral ranges.…”

Section: Introductionmentioning

confidence: 99%

The impact of age-related cataracts on colour perception, postoperative recovery and related spectra derived from test of hue perception

Qiu

et al. 2019

BMC Ophthalmol

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Background Cataract patients were always excluded from studies on ageing of colour vision; thus, effect of age-related cataracts on deterioration of colour perception has not been analysed. In present study, impacts of age-related cataracts on colour discrimination, postoperative recovery and related spectra were investigated. Methods In this cohort study, thirty age-related cataract patients scheduled for binocular surgery and 30 elderly volunteers were enrolled. Colour discrimination under photopic (1000 lx) and mesopic (40 lx) conditions was evaluated with Farnsworth-Munsell 100-hue test. The total error score (TES) and partial error score (PES) were calculated. Results Preoperatively, the TES in the patient group was 129.7 ± 59.5 at 1000 lx and 194.6 ± 74.5 at 40 lx, exhibiting worse discrimination than the volunteer group (TES 1000lux = 71.5 ± 37.5 and TES 40lux = 113.1 ± 38.8, p ≤ 0.001). Inferior perception were detected in the yellow to green-yellow (Y-GY), green-yellow to green (GY-G), green to blue-green (G-BG) and blue-green to blue (BG-B) colour bands ( p ≤ 0.003), corresponding to the 470 nm–580 nm range of the visible light spectrum. Under mesopic conditions, the impact expanded to all colour bands except for yellow-red to yellow (YR-Y). Postoperatively, the TES in the patient group were 80.4 ± 62.4 at 1000 lx and 112.0 ± 85.2 at 40 lx, which were lower than those of the preoperative phase ( p ≤ 0.001) but similar to those of the volunteer group ( p ≥ 0.505). Postoperative improvement occurred in the Y-GY, GY-G and G-BG colour bands (490 nm to 580 nm) at 1000 lx ( p ≤ 0.001) and shifted to the Y-GY, GY-G, G-BG and BG-B colour bands (470 nm to 580 nm) at 40 lx ( p ≤ 0.001). Deterioration of hue perception for decrement of illumination was detected in the red to yellow-red (R-YR), Y-GY, G-BG, BG-B, blue to purple-blue (B-PB) and red-purple to red (RP-R) colour bands (450 nm to 500 nm) in the volunteer group ( p ≤ 0.002) and the R-YR, G-BG, BG-B, B-PB, PB-P and red-purple to red (RP-R) colour bands (from the short-wavelength end to 500 nm) in the patient group preoperatively ( p ≤ 0.001). Conclusions Phacoemulsification could effectively rebuild colour perception in patients with age-related cataract. The postoperative benefits were most significant in colour bands corresponding with spectrum from 470 nm to 580 nm. Electronic supplementary material The online version of this article (10.1186/s12886-019-1057-6) contains supplementary material, which is available to authorized users.

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Neutralization method for detecting the incidence of color perception changes after cataract surgery

Abstract: The author has no financial or proprietary interest in any material or method mentioned.

Cited by 6 publications

References 26 publications

Long-Term Anatomic and Functional Outcomes after Macular Hole Surgery

Long-Term Anatomic and Functional Outcomes after Macular Hole Surgery

The evidence informing the surgeon’s selection of intraocular lens on the basis of light transmittance properties

The impact of age-related cataracts on colour perception, postoperative recovery and related spectra derived from test of hue perception

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