Functional visual acuity after neodymium:YAG laser capsulotomy in patients with posterior capsule opacification and good visual acuity preoperatively

Wakamatsu, Tais Hitomi; Yamaguchi, Takefumi; Negishi, Kazuno; Kaido, Minako; Matsumoto, Yukihiro; Ishida, Ryôhei; Kojima, Takashi; Ibrahim, Osama; Saiki, Megumi; Doğru, Murat; Tsubota, Kazuo

doi:10.1016/j.jcrs.2010.08.048

Cited by 30 publications

(25 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Posterior capsule opacification causes a reduction in visual acuity and contrast sensitivity, as well as glare and monocular diplopia 1,3,4 which might reduce the patient's quality of life and become an economic burden to the healthcare system. 5 Factors related to PCO formation mostly were the type of cataract surgery, intraocular lens (IOL) design and patients with systemic diseases.…”

mentioning

confidence: 99%

Incidence and associated factors of posterior capsule opacification in pseudophakic patients at Cipto Mangunkusumo Hospital

Ayuningtyas

Gondhowiardjo

2015

Med J Indones

View full text Add to dashboard Cite

Background: Posterior capsule opacification (PCO) is the most common postoperative consequence of cataract surgery which may cause visual acuity reduction, yet the incidence in Indonesia has not been reported. The objectives of this study were to evaluate three years cumulative incidence of PCO and factors associated with PCO formation at Cipto Mangunkusumo Hospital, Jakarta.Methods: This was a retrospective descriptive study on patients with uneventful senile cataract surgery during year 2010. All related data were retrieved from medical records in year 2013, which included patient demographics, type of surgery, intraocular lens (IOL) characteristics (material, optic edge design and diameter). Moreover, time to first PCO diagnosis (month), and best corrected visual acuity (BCVA) pre-operatively, at time PCO was diagnosed and two weeks after Neodymium-doped yttrium aluminum garnet (Nd:YAG) laser were noted (decimal).Results: A total of 578 eyes (485 patients) were involved in this study. Three years cumulative incidence of the PCO was 8.82% (51 eyes). Phacoemulsification surgery was performed in 496 (85.8%) eyes. The median time to PCO diagnosis was 21 months (range 1 to 34 months), mean of BCVA was 0.50 ± 0.26. Age (<65 and >65 years old) was not associated to PCO. Higher incidence of PCO was found in patients using hydrophilic acrylic IOL (10.7%) than in hydrophobic acrylic (6.2%). After Nd:YAG laser was performed, BCVA was improved to 1.00.Conclusion: Three years cumulative incidence of PCO was 8.82% and there was no defined factor related to PCO formation, but higher percentage of PCO occured in patients using hydrophilic acrylic IOL than in hydrophobic acrylic.

show abstract

mentioning

confidence: 99%

Incidence and associated factors of posterior capsule opacification in pseudophakic patients at Cipto Mangunkusumo Hospital

Ayuningtyas

Gondhowiardjo

2015

Med J Indones

View full text Add to dashboard Cite

show abstract

“…Recently, much attention has been given to the sequential changes in visual function, because daily tasks generally involve continuous, not static, acquisition of visual information. Functional visual acuity (FVA) testing was developed to assess dynamic changes in visual functioning [11–14]; the technique has proven quite useful in detecting masked impairment of visual function in patients with dry eye [11–13, 15, 16], mild cataract [17], posterior capsule opacification after cataract surgery [18], early presbyopia [19], epiretinal membrane [20], and age-related macular degeneration [21]. In addition, FVA testing detected slight visual deterioration induced by viscous eyedrops [22], eye ointment [23], and soft contact lenses (SCLs) [24], which was not identified using conventional VA testing.…”

Section: Introductionmentioning

confidence: 99%

Influence of intraocular lens subsurface nanoglistenings on functional visual acuity

et al. 2017

View full text Add to dashboard Cite

To investigate the influence of intraocular lens subsurface nanoglistenings (SSNGs) on functional visual acuity (FVA), thirty-nine eyes of 29 patients were examined in this study. The SSNG group comprised 19 eyes of 14 patients (75.7± 5.4 years, mean ± standard deviation), and the control group comprised 20 eyes of 15 patients (73.6 ± 6.5 years). The SSNGs were diagnosed on the basis of the typical whitish IOL appearance upon slit-lamp examination and results of densitometry regarding surface light scattering using Scheimpflug images. The FVA measurement system (AS-28; Kowa, Aichi, Japan) was used to examine changes in continuous visual acuity (VA) over time, and visual function parameters such as FVA, visual maintenance ratio (VMR), maximum VA, minimum VA, standard deviation of VA, and number of blinks were assessed. The results were compared between the SSNG and control groups, and correlations of FVA parameters with the intensity of surface light scattering, time after surgery, and age were also evaluated. There were significant differences in VMR (P = 0.035) and standard deviation of VAs (P = 0.031) between the two groups, although no significant differences were found in baseline VA, FVA, maximum VA, minimum VA, and number of blinks. None of the FVA parameters showed any significant correlations with the intensity of surface light scattering, time after surgery, or age. There is a possibility that VA is unstable during a continuous gazing task in patients with SSNGs.

show abstract

“…Functional VA values may reflect changes other than those caused by AMD because changes in corneal and lens densities 9,10 as well as tear volume (measured by the Schirmer test) 7,11,12 also affected the FVA score and VMR. 7,11 However, these parameters were not significantly different in the affected eyes in our study compared with fellow eyes, indicating that the FVA values directly reflected AMD-induced changes in the retina.…”

Section: Discussionmentioning

confidence: 99%

Functional Visual Acuity in Age-Related Macular Degeneration

2016

Optometry and Vision Science

View full text Add to dashboard Cite

Purpose. We evaluated whether a functional visual acuity (FVA) system can detect subtle changes in central visual acuity that reflect pathological findings associated with age-related macular degeneration (AMD). Methods. Twenty-eight patients with unilateral AMD and logMAR monocular best corrected VA better than 0 in both eyes, as measured by conventional chart examination, were analyzed between November 2012 and April 2013. After measuring conventional VA, FVA, and contrast VA with best correction, routine eye examinations including spectral domainYoptical coherence tomography were performed. Standard Schirmer test was performed, and corneal and lens densities were measured. Results. The FVA score (p G 0.001) and visual maintenance ratio (p G 0.001) measured by the FVA system, contrast VA (p G 0. 01), and conventional VA (p G 0.01) were significantly worse in the AMD-affected eyes than in the fellow eyes. No significant differences were observed in the anterior segment conditions. Forward stepwise regression analysis demonstrated that the length of interdigitation zone disruption, as visualized by optical coherence tomography imaging, correlated with the FVA score (p G 0.01) but not with any other parameters investigated. Conclusions. The FVA system detects subtle changes in best corrected VA in AMD-affected eyes and reflects interdigitation zone disruption, an anatomical change in the retina recorded by optical coherence tomography. Further studies are required to understand the value of the FVA system in detecting subtle changes in AMD. (Optom Vis Sci 2016;93:70Y76) Key Words: functional visual acuity, interdigitation zone, optical coherence tomography, age-related macular degeneration, retina R ecent progress in medical technology and science has facilitated the development of effective treatments for retinal diseases, such as molecular targeted drugs, and antiYvascular endothelial growth factor (anti-VEGF) drugs for age-related macular degeneration (AMD), as well as pars plana vitrectomy. With the improvement in prognosis, treatment is extended to patients who have better visual function at baseline. Thus, a sensitive method for detecting subtle changes in central visual acuity (VA) that reflects pathological findings of AMD and other retinal diseases is warranted. One method proposed for this purpose is the functional VA (FVA) system. The FVA system can detect subtle visual dysfunction caused by epiretinal membrane in eyes with good VA as measured by conventional Landolt C charts.1 However, whether this method is able to detect the subtle impairment of visual function caused by AMD and reflect the retinal clinical findings remains obscure.The FVA system uses a series of charts shown continuously and requires patient responses within 2 s of each chart display, which is in contrast to the conventional Landolt C chart examination, in which patients can stare at the chart before responding. Contrast VA testing involves the use of a lower-contrast Landolt C chart than conventional VA measurement, but...

show abstract

Functional visual acuity after neodymium:YAG laser capsulotomy in patients with posterior capsule opacification and good visual acuity preoperatively

Abstract: Results indicate that measurement of functional visual acuity is useful in assessing the quality of vision in patients who have Nd:YAG laser capsulotomy after cataract surgery.

Cited by 30 publications

References 27 publications

Incidence and associated factors of posterior capsule opacification in pseudophakic patients at Cipto Mangunkusumo Hospital

Incidence and associated factors of posterior capsule opacification in pseudophakic patients at Cipto Mangunkusumo Hospital

Influence of intraocular lens subsurface nanoglistenings on functional visual acuity

Functional Visual Acuity in Age-Related Macular Degeneration

Contact Info

Product

Resources

About