A systematic review of the recent literature regarding pseudophakic monovision as a reliable methods for presbyopia correction was performed based on the PubMed, MEDLINE, Nature and the American Academy of Ophthalmolo...A systematic review of the recent literature regarding pseudophakic monovision as a reliable methods for presbyopia correction was performed based on the PubMed, MEDLINE, Nature and the American Academy of Ophthalmology databases in July 2015 and data from 18 descriptive and 12 comparative studies were included in this narrative review. Pseudophakic monosvision seems to be an effective method for presbyopia with high rates of spectacles independence and minimal dysphotopsia side- effects, that should be considered by the modern cataract surgeons.展开更多
AIM:To assess objective visual quality after presbyopia correction using the Presby MAX monocular mode.METHODS:This prospective,nonrandomized study included 28 eyes from 18 patients(mean age 50.4±5.6 y)who underw...AIM:To assess objective visual quality after presbyopia correction using the Presby MAX monocular mode.METHODS:This prospective,nonrandomized study included 28 eyes from 18 patients(mean age 50.4±5.6 y)who underwent presbyopia correction with the Presby MAX monocular mode.Monocular and binocular visual acuities were evaluated preoperatively,1 d,1 wk,1,3 mo,and 1 y after surgery.Optical quality was analyzed by HartmannShack wavefront aberration supported cornea ablation.Modulation transfer function(MTF)cutoff frequency,Strehl ratio,and objective scattering index(OSI)were analyzed using an optical quality analysis system.RESULTS:One year after surgery,100%and 94.4%of patients achieved binocular uncorrected distance and near visual acuity of 20/25,respectively.At the last visit Spherical aberration and total higher aberration were higher than the corresponding preoperative levels(P<0.001);however,no significant difference was found in MTF,OSI,or Strehl ratio.Transient decreases in OSI and MTF mainly occurred in the nondominant eyes.There was no significant difference in optical quality between the dominant and nondominant eyes,except for spherical aberration and horizontal coma(P<0.05).CONCLUSION:The Presby MAX monocular mode is safe and effective for presbyopia correction.It has little effect on optical quality,though short-term degraded optical quality occurred mainly in the bi-aspheric ablated eyes.展开更多
Purpose:The aim of this systematic review was to synthesize and appraise the evidence of the benefits of presbyopic correction on the cornea for visual function.Summary:Comprehensive search was conducted in MEDLINE us...Purpose:The aim of this systematic review was to synthesize and appraise the evidence of the benefits of presbyopic correction on the cornea for visual function.Summary:Comprehensive search was conducted in MEDLINE using keywords like“presbylasik”,“presbyopic refractive surgery”,“corneal pseudoaccommodation”and“corneal multifocality”.We reviewed corrected and uncorrected visual acuities for distance and near(uncorrected distance visual acuity(UDVA),uncorrected near visual acuity(UNVA),corrected distance visual acuity(CDVA),distance corrected near visual acuity(DCNVA),corrected near visual acuity(CNVA)),along with the refractive outcomes in spherical equivalent(SE)and astigmatism comparing the differences observed between preoperative myopic and hyperopic patients,as well as among techniques.Thirty-one studies met the inclusion and quality criteria.Monovision provides excellent distance and near uncorrected acuities,but with a 17%retreatment and a 5%reversal rate.Initial multifocal ablations result in 12%loss of 2 or more lines of CDVA,and a 21%retreatment rate.Laser Blended Vision provides excellent UDVA,but with a 19%retreatment rate.Initial experiences with Supracor show moderate predictability and a 22%retreatment rate.Intracor results in 9%loss of 2 or more lines of CDVA.KAMRA provides excellent UDVA,with only a 1%retreatment rate,but a 6%reversal rate.Initial experiences with PresbyMAX provided excellent UNVA and DCNVA,showing excellent predictability and a 1%reversal rate.Conclusions:The findings have implications for clinicians and policymakers in the health-care industry and emphasize the need for additional trials examining this important and widely performed clinical procedure.展开更多
Background:Pseudophakic presbyopic correction is among the prevalent methods for regaining near vision capacity.The purpose of this study is to compare the impact of pseudophakic monovision correction and multifocal l...Background:Pseudophakic presbyopic correction is among the prevalent methods for regaining near vision capacity.The purpose of this study is to compare the impact of pseudophakic monovision correction and multifocal lens implantation on the performance in a series of activities of daily living(ADL)of presbyopic patients.Methods:An ADL research framework(10 ADLs)was constructed and validated in a sample of patients divided into three validation groups according to their near visual acuity.Sixty-two participants that underwent mini-monovision(MoG)cataract extraction and 60 that underwent bilateral multifocal lenses implantation(MfG)populated study groups and addressed the ADLs.Binocular uncorrected distant(BdUVA)and near(BnUVA)visual acuity were associated with ADL scores and with subjective satisfaction using the VF-14 questionnaire.Results:Test-retest reliability[all Intraclass Correlations Coefficients(ICC)>0.90]and construct validity(all p<0.05)tests indicated sufficient psychometric performance of the ADL framework.Both study groups presented comparable mean ADL scores(p=0.07)however,MoG patients had lower performance in demanding ADLs(p=0.02).ADL scores demonstrated significant correlation with BnUVA(r^(2)=−0.67,p<0.01)VF-14 scores(r^(2)=0.53,p<0.01).Conclusions:Both methods provide sufficient near vision capacity for the majority of activities of daily living.However,only multifocal lens implantation can address demanding near vision tasks.展开更多
文摘A systematic review of the recent literature regarding pseudophakic monovision as a reliable methods for presbyopia correction was performed based on the PubMed, MEDLINE, Nature and the American Academy of Ophthalmology databases in July 2015 and data from 18 descriptive and 12 comparative studies were included in this narrative review. Pseudophakic monosvision seems to be an effective method for presbyopia with high rates of spectacles independence and minimal dysphotopsia side- effects, that should be considered by the modern cataract surgeons.
基金Supported by National Natural Science Foundation of China(No.81770955)National Natural Science Foundation of China for Young Scholar(No.81600762)+1 种基金Project of Shanghai Science and Technology(No.17411950200)Joint Research Project of New Frontier Technology in Municipal Hospitals(No.SHDC12018103)。
文摘AIM:To assess objective visual quality after presbyopia correction using the Presby MAX monocular mode.METHODS:This prospective,nonrandomized study included 28 eyes from 18 patients(mean age 50.4±5.6 y)who underwent presbyopia correction with the Presby MAX monocular mode.Monocular and binocular visual acuities were evaluated preoperatively,1 d,1 wk,1,3 mo,and 1 y after surgery.Optical quality was analyzed by HartmannShack wavefront aberration supported cornea ablation.Modulation transfer function(MTF)cutoff frequency,Strehl ratio,and objective scattering index(OSI)were analyzed using an optical quality analysis system.RESULTS:One year after surgery,100%and 94.4%of patients achieved binocular uncorrected distance and near visual acuity of 20/25,respectively.At the last visit Spherical aberration and total higher aberration were higher than the corresponding preoperative levels(P<0.001);however,no significant difference was found in MTF,OSI,or Strehl ratio.Transient decreases in OSI and MTF mainly occurred in the nondominant eyes.There was no significant difference in optical quality between the dominant and nondominant eyes,except for spherical aberration and horizontal coma(P<0.05).CONCLUSION:The Presby MAX monocular mode is safe and effective for presbyopia correction.It has little effect on optical quality,though short-term degraded optical quality occurred mainly in the bi-aspheric ablated eyes.
文摘Purpose:The aim of this systematic review was to synthesize and appraise the evidence of the benefits of presbyopic correction on the cornea for visual function.Summary:Comprehensive search was conducted in MEDLINE using keywords like“presbylasik”,“presbyopic refractive surgery”,“corneal pseudoaccommodation”and“corneal multifocality”.We reviewed corrected and uncorrected visual acuities for distance and near(uncorrected distance visual acuity(UDVA),uncorrected near visual acuity(UNVA),corrected distance visual acuity(CDVA),distance corrected near visual acuity(DCNVA),corrected near visual acuity(CNVA)),along with the refractive outcomes in spherical equivalent(SE)and astigmatism comparing the differences observed between preoperative myopic and hyperopic patients,as well as among techniques.Thirty-one studies met the inclusion and quality criteria.Monovision provides excellent distance and near uncorrected acuities,but with a 17%retreatment and a 5%reversal rate.Initial multifocal ablations result in 12%loss of 2 or more lines of CDVA,and a 21%retreatment rate.Laser Blended Vision provides excellent UDVA,but with a 19%retreatment rate.Initial experiences with Supracor show moderate predictability and a 22%retreatment rate.Intracor results in 9%loss of 2 or more lines of CDVA.KAMRA provides excellent UDVA,with only a 1%retreatment rate,but a 6%reversal rate.Initial experiences with PresbyMAX provided excellent UNVA and DCNVA,showing excellent predictability and a 1%reversal rate.Conclusions:The findings have implications for clinicians and policymakers in the health-care industry and emphasize the need for additional trials examining this important and widely performed clinical procedure.
文摘Background:Pseudophakic presbyopic correction is among the prevalent methods for regaining near vision capacity.The purpose of this study is to compare the impact of pseudophakic monovision correction and multifocal lens implantation on the performance in a series of activities of daily living(ADL)of presbyopic patients.Methods:An ADL research framework(10 ADLs)was constructed and validated in a sample of patients divided into three validation groups according to their near visual acuity.Sixty-two participants that underwent mini-monovision(MoG)cataract extraction and 60 that underwent bilateral multifocal lenses implantation(MfG)populated study groups and addressed the ADLs.Binocular uncorrected distant(BdUVA)and near(BnUVA)visual acuity were associated with ADL scores and with subjective satisfaction using the VF-14 questionnaire.Results:Test-retest reliability[all Intraclass Correlations Coefficients(ICC)>0.90]and construct validity(all p<0.05)tests indicated sufficient psychometric performance of the ADL framework.Both study groups presented comparable mean ADL scores(p=0.07)however,MoG patients had lower performance in demanding ADLs(p=0.02).ADL scores demonstrated significant correlation with BnUVA(r^(2)=−0.67,p<0.01)VF-14 scores(r^(2)=0.53,p<0.01).Conclusions:Both methods provide sufficient near vision capacity for the majority of activities of daily living.However,only multifocal lens implantation can address demanding near vision tasks.
