AIM:To report the outcomes of three cases of corneal perforation managed with simultaneous tectonic Descemet stripping endothelial keratoplasty(t-DSEK)and tectonic Bowman layer transplant(t-BLT)as an alternative to te...AIM:To report the outcomes of three cases of corneal perforation managed with simultaneous tectonic Descemet stripping endothelial keratoplasty(t-DSEK)and tectonic Bowman layer transplant(t-BLT)as an alternative to tectonic penetrating keratoplasty(t-PKP).METHODS:Three eyes of three patients receiving simultaneous t-DSEK and t-BLT for corneal perforation were included.The technique for DSEK was modified depending on individual requirements.The t-BLT technique was standardised using an 8 mm graft and fixated with a running suture.Success was measured by the ability of this procedure to close a corneal perforation.RESULTS:All three cases achieved tectonic eye globe restoration and remained stable during the minimum 3-month observation period.Reinterventions were relatively common:2 cases required amniotic membrane transplant for persistent epithelial defects.One case required DSEK rebubbling.One case developed angle closure glaucoma requiring surgical peripheral iridectomy.CONCLUSION:Simultaneous t-DSEK and t-BLT may be a useful strategy for the management of corneal perforation as an alternative management to t-PKP for selected cases.展开更多
Background:The aim of the study was to evaluate the outcomes of dissatisfed patients reporting poor visual quality following implantation of multifocal intraocular lenses(MF-IOLs),managed by IOL exchange with another ...Background:The aim of the study was to evaluate the outcomes of dissatisfed patients reporting poor visual quality following implantation of multifocal intraocular lenses(MF-IOLs),managed by IOL exchange with another multifocal optical profle.Methods:This is a retrospective series of cases.MF-IOL exchange was done in 15 dissatisfed patients(30 eyes)with the perception of poor visual quality for far distance afected by neuroadaptation failure.Patients underwent a bilateral exchange of a MF-IOL with another MF-IOL of a diferent optical profle.Visual outcomes and complications were analyzed.Questionnaires including Quality of Vision(QoV),Visual Function Index-14(VF-14)and its Rasch-revised version(VF-8R)and a satisfaction questionnaire were also used for outcome evaluation.Results:The mean elapsed time from implantation to explantation-reimplantation was 11.8 months.The QoV scores improved signifcantly across all the three subscales.Visual function improved with a change in VF-14 score from 60.41±24.81 to 90.16±10.91(P<0.001).The VF-8R score improved as well.The uncorrected distance visual acuity improved from 0.24 to 0.12 logMAR after exchange(P<0.001)and corrected distance visual acuity improved from 0.15 to 0.04 logMAR(P<0.001).Safety and efcacy indexes reached 1.46 and 1.16,respectively.Concerning patients’satisfaction following MF-IOL exchange,80%of the patients reported they would have the MF-IOL reimplantation procedure again.Conclusions:Patient dissatisfaction with neuroadaptation failure following MF-IOL implantation can be managed in 80%of our cases by MF-IOL exchange with a diferent MF-IOL optical profle.展开更多
BackgroundTo study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function (PSF) Strehl ratio using a pyramidal wavefront sensor (PWS)-b...BackgroundTo study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function (PSF) Strehl ratio using a pyramidal wavefront sensor (PWS)-based aberrometer.MethodsThis study included 194 eyes implanted with: (a) 19 AcrySof SA60AT (control group);(b) 19 Miniwell;(c) 24 LENTIS Mplus LS-313 MF30;(d) 33 LENTIS Mplus LS-313 MF15;(e) 17 AkkoLens Lumina;(f) 31 AT LISA Tri 839MP;(g) 20 Precizon Presbyopic;(h) 20 AcrySof IQ PanOptix;(i) 11 Tecnis Eyhance. Main outcome measures were PSF Strehl ratio, PSF Strehl ratio excluding second-order aberrations (PSFw2), total root mean square (RMS), low-order aberration (LOA) and high-order aberration (HOA) RMS measured by PWS aberrometer.ResultsAT LISA Tri had the highest PSFw2 Strehl ratio at both 3.0- and 4.0-mm pupil size (0.52 ± 0.14 and 0.31 ± 0.10;P < 0.05), followed by SA60AT (0.41 ± 0.11 and 0.28 ± 0.07) and PanOptix (0.4 ± 0.07 and 0.26 ± 0.04). AT LISA Tri was found to provide a significantly better retinal image quality than PanOptix at both 3.0 mm (P < 0.0001) and 4.0 mm (P = 0.004). Mplus MF15 was found to be significantly better than Mplus MF30 at both 3.0 mm (P < 0.0001) and 4.0 mm (P = 0.002). Total RMS, LOA RMS, HOA RMS, PSF Strehl ratio and PSFw2 varied significantly between the studied groups (P < 0.001).ConclusionsFar distance clinical image quality parameters measured by PWS aberrometer differed significantly according to the technology of the implanted lens. AT LISA Tri, SA60AT and PanOptix showed the highest values of far distance retinal image quality, while the lowest PSFw2 Strehl ratios were displayed by Miniwell, Mplus MF30 and Precizon Presbyopic.展开更多
Background:To study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function(PSF)Strehl ratio using a pyramidal wavefront sensor(PWS)-bas...Background:To study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function(PSF)Strehl ratio using a pyramidal wavefront sensor(PWS)-based aberrometer.Methods:This study included 194 eyes implanted with:(a)19 AcrySof SA60AT(control group);(b)19 Miniwell;(c)24 LENTIS Mplus LS-313 MF30;(d)33 LENTIS Mplus LS-313 MF15;(e)17 AkkoLens Lumina;(f)31 AT LISA Tri 839MP;(g)20 Precizon Presbyopic;(h)20 AcrySof IQ PanOptix;(i)11 Tecnis Eyhance.Main outcome measures were PSF Strehl ratio,PSF Strehl ratio excluding second-order aberrations(PSFw2),total root mean square(RMS),low-order aberration(LOA)and high-order aberration(HOA)RMS measured by PWS aberrometer.Results:AT LISA Tri had the highest PSFw2 Strehl ratio at both 3.0-and 4.0-mm pupil size(0.52±0.14 and 0.31±0.10;P<0.05),followed by SA60AT(0.41±0.11 and 0.28±0.07)and PanOptix(0.4±0.07 and 0.26±0.04).AT LISA Tri was found to provide a significantly better retinal image quality than PanOptix at both 3.0 mm(P<0.0001)and 4.0 mm(P=0.004).Mplus MF15 was found to be significantly better than Mplus MF30 at both 3.0 mm(P<0.0001)and 4.0 mm(P=0.002).Total RMS,LOA RMS,HOA RMS,PSF Strehl ratio and PSFw2 varied significantly between the studied groups(P<0.001).Conclusions:Far distance clinical image quality parameters measured by PWS aberrometer differed significantly according to the technology of the implanted lens.AT LISA Tri,SA60AT and PanOptix showed the highest values of far distance retinal image quality,while the lowest PSFw2 Strehl ratios were displayed by Miniwell,Mplus MF30 and Precizon Presbyopic.展开更多
Background:To evaluate the safety,efficacy,refractive outcomes and causes for bilensectomy[phakic intraocular lens(plOL)explantation with cataract surgery and pseudophakic intraocular lens(IOL)implantation]in patients...Background:To evaluate the safety,efficacy,refractive outcomes and causes for bilensectomy[phakic intraocular lens(plOL)explantation with cataract surgery and pseudophakic intraocular lens(IOL)implantation]in patients previously implanted with posterior chamber plOLs(PC plOLs).Methods:This multi-center retrospective study included 87 eyes of 55 patients who underwent bilensectomy for PC plOL with a follow-up time of 12 months.The uncorrected and corrected distance visual acuities(UDVA,CDVA),endothelial cell density before and after bilensectomy were assessed,as well as the cause of bilensectomy and intra or postoperative complications.Results:There was a statistically significant improvement in UDVA and CDVA after bilensectomy(P=0.00).The main reason for bilensectomy was cataract development(93.1%of the cases),followed by miscalculation of lens size,and corneal edema.The endothelial cell count remained stable without a statistically significant change after surgery(P=0.67).The refractive efficacy index was 0.8,none of the patients lost lines of CDVA after surgery,73%of the patients were within±1.0D(spherical equivalent)of the target refraction.Intraoperative complications were one posterior capsule rupture with the IOL implanted in the sulcus,and three eyes required the use of pupil expanders for adequate pupil dilation.Postoperatively,one eye developed retinal detachment.The three plOLs models explanted were the implantable collamer lens(ICL);implantable phakic contact lens(IPCL)and the phakic refractive lens(PRL).Conclusions:Good safety and visual outcomes were observed one year after bilensectomy for PC plOLs.There were few intra and postoperative complications and there was no significant endothelial cell loss after the bilensectomy procedure.展开更多
This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the e...This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the eye after the extrusion of the non-perforating keratoprosthesis(Kpro)KeraKlear(KeraMed,USA).The non-perforating Kpro was extruded after a mean period of 21.4±21.8 months due to melting.In two cases,the keratoplasty was performed the same day of the non-perforating Kpro removal due to a severe melting,while in the other three cases it was performed 1 to 3 months later.Two eyes received a DALK,but in 3 eyes a macroscopic Descemetzs membrane perforation forced the conversion into a PK.The mean follow-up period after the keratoplasty was 16.8±6.6 months.No cases of rejection were recorded.All the 5 eyes achieved"anatomical success"(transparent graft,with no signs of infection or inflammation).Two eyes showed limited functional success"because the achievement of the best visual potential was prevented by the development of glaucomatous optic atrophy during the follow-up period.In conclusion,this short report presents an unexpected success of a keratoplasty performed with a tectonic purpose after the extrusion of the non-perforating Kpro because the corneal graft remained transparent,without neovascularization or scarring during the follow-up period.This initial evidence shows some encouraging results reg a rd i ng graft survival rate and the achievement of a useful visual rehabilitation with keratoplasty after a nonperforating Kpro failure in stead of repeating the Kpro implantation.展开更多
Purpose:To evaluate the clinical and visual outcomes,quality of near vision and the influence of photic phenomena in patients bilaterally implanted with a new Precizon Presbyopic multifocal intraocular lens(IOL).Metho...Purpose:To evaluate the clinical and visual outcomes,quality of near vision and the influence of photic phenomena in patients bilaterally implanted with a new Precizon Presbyopic multifocal intraocular lens(IOL).Methods:In this prospective consecutive case series,20 eyes of 10 patients were included(mean age 63.80±12.55 years).Uncorrected and corrected visual acuity(far,intermediate and near),subjective refraction,binocular defocus curve,contrast sensitivity(CSV-1000)and quality of vision and satisfaction questionnaires were measured.The follow-up was 12 months after surgery.Results:At 12 months after surgery,uncorrected distance visual acuity(UDVA)improved with surgery(P=0.001)with a value of 0.08±0.08 logMAR.Uncorrected near visual acuity(UNVA)was 0.22±0.12 logMAR and distance corrected near visual acuity(DCNVA)was 0.16±0.13 logMAR.Intermediate distance visual acuity(UIVA)was 0.22±0.10 logMAR.Contrast sensitivity outcomes were similar to normal population in photopic conditions and slightly reduced in mesopic conditions of lighting.Defocus curve showed that this multifocal iOL was able to provide a visual acuity(VA)equal to or better than 0.16 logMAR between defocus levels of+1.00 to-2.50 D.Good patient satisfaction was obtained in quality of vision and satisfaction questionnaires outcomes.Conclusions:The Precizon Presbyopic NVA IOL(OPHTEC BV)provides good visual outcomes.This multifocal IOL provides a high percentage of spectacle independence due to good VA at far,intermediate and near distances and satisfactory contrast sensitivity.High patient satisfaction was observed in quality of vision and satisfaction questionnaires with a low percentage of patients manifesting photic phenomena.展开更多
This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the e...This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the eye after the extrusion of the non-perforating keratoprosthesis(Kpro)KeraKlear(KeraMed,USA).The non-perforating Kpro was extruded after a mean period of 21.4±21.8 months due to melting.In two cases,the keratoplasty was performed the same day of the non-perforating Kpro removal due to a severe melting,while in the other three cases it was performed one to 3 months later.Two eyes received a DALK,but in 3 eyes a macroscopic Descemet membrane perforation forced the conversion into a PK.The mean follow-up period after the keratoplasty was 16.8±6.6 months.No cases of rejection were recorded.All the 5 eyes achieved“anatomical success”(transparent graft,with no signs of infection or inflammation).Two eyes showed limited“functional success”because the achievement of the best visual potential was prevented by the development of glaucomatous optic atrophy during the follow-up period.In conclusion,this short report presents an unexpected success of a keratoplasty performed with a tectonic purpose after the extrusion of the non-perforating Kpro because the corneal graft remained transparent,without neovascularization or scarring during the follow-up period.This initial evidence shows some encouraging results regarding graft survival rate and the achievement of a useful visual rehabilitation with keratoplasty after a nonperforating Kpro failure instead of repeating the Kpro implantation.展开更多
文摘AIM:To report the outcomes of three cases of corneal perforation managed with simultaneous tectonic Descemet stripping endothelial keratoplasty(t-DSEK)and tectonic Bowman layer transplant(t-BLT)as an alternative to tectonic penetrating keratoplasty(t-PKP).METHODS:Three eyes of three patients receiving simultaneous t-DSEK and t-BLT for corneal perforation were included.The technique for DSEK was modified depending on individual requirements.The t-BLT technique was standardised using an 8 mm graft and fixated with a running suture.Success was measured by the ability of this procedure to close a corneal perforation.RESULTS:All three cases achieved tectonic eye globe restoration and remained stable during the minimum 3-month observation period.Reinterventions were relatively common:2 cases required amniotic membrane transplant for persistent epithelial defects.One case required DSEK rebubbling.One case developed angle closure glaucoma requiring surgical peripheral iridectomy.CONCLUSION:Simultaneous t-DSEK and t-BLT may be a useful strategy for the management of corneal perforation as an alternative management to t-PKP for selected cases.
基金the Network for Cooperative Research in Health“OFTARED”,Nodo Dioptrio Ocular,Biobanco Iberia(Reference:RD16/0008/0012)funded by Instituto de Salud Carlos III and co-funded by European Regional Development Fund(ERDF)Project"A way to make Europe"。
文摘Background:The aim of the study was to evaluate the outcomes of dissatisfed patients reporting poor visual quality following implantation of multifocal intraocular lenses(MF-IOLs),managed by IOL exchange with another multifocal optical profle.Methods:This is a retrospective series of cases.MF-IOL exchange was done in 15 dissatisfed patients(30 eyes)with the perception of poor visual quality for far distance afected by neuroadaptation failure.Patients underwent a bilateral exchange of a MF-IOL with another MF-IOL of a diferent optical profle.Visual outcomes and complications were analyzed.Questionnaires including Quality of Vision(QoV),Visual Function Index-14(VF-14)and its Rasch-revised version(VF-8R)and a satisfaction questionnaire were also used for outcome evaluation.Results:The mean elapsed time from implantation to explantation-reimplantation was 11.8 months.The QoV scores improved signifcantly across all the three subscales.Visual function improved with a change in VF-14 score from 60.41±24.81 to 90.16±10.91(P<0.001).The VF-8R score improved as well.The uncorrected distance visual acuity improved from 0.24 to 0.12 logMAR after exchange(P<0.001)and corrected distance visual acuity improved from 0.15 to 0.04 logMAR(P<0.001).Safety and efcacy indexes reached 1.46 and 1.16,respectively.Concerning patients’satisfaction following MF-IOL exchange,80%of the patients reported they would have the MF-IOL reimplantation procedure again.Conclusions:Patient dissatisfaction with neuroadaptation failure following MF-IOL implantation can be managed in 80%of our cases by MF-IOL exchange with a diferent MF-IOL optical profle.
基金This study has been financed in part by the Network for Cooperative Research in Health“OFTARED”—Reference:RD16/0008/0012.Funded by Instituto de Salud Carlos III and co-funded by European Regional Development Fund(ERDF),Project“A way to make Europe”.
文摘BackgroundTo study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function (PSF) Strehl ratio using a pyramidal wavefront sensor (PWS)-based aberrometer.MethodsThis study included 194 eyes implanted with: (a) 19 AcrySof SA60AT (control group);(b) 19 Miniwell;(c) 24 LENTIS Mplus LS-313 MF30;(d) 33 LENTIS Mplus LS-313 MF15;(e) 17 AkkoLens Lumina;(f) 31 AT LISA Tri 839MP;(g) 20 Precizon Presbyopic;(h) 20 AcrySof IQ PanOptix;(i) 11 Tecnis Eyhance. Main outcome measures were PSF Strehl ratio, PSF Strehl ratio excluding second-order aberrations (PSFw2), total root mean square (RMS), low-order aberration (LOA) and high-order aberration (HOA) RMS measured by PWS aberrometer.ResultsAT LISA Tri had the highest PSFw2 Strehl ratio at both 3.0- and 4.0-mm pupil size (0.52 ± 0.14 and 0.31 ± 0.10;P < 0.05), followed by SA60AT (0.41 ± 0.11 and 0.28 ± 0.07) and PanOptix (0.4 ± 0.07 and 0.26 ± 0.04). AT LISA Tri was found to provide a significantly better retinal image quality than PanOptix at both 3.0 mm (P < 0.0001) and 4.0 mm (P = 0.004). Mplus MF15 was found to be significantly better than Mplus MF30 at both 3.0 mm (P < 0.0001) and 4.0 mm (P = 0.002). Total RMS, LOA RMS, HOA RMS, PSF Strehl ratio and PSFw2 varied significantly between the studied groups (P < 0.001).ConclusionsFar distance clinical image quality parameters measured by PWS aberrometer differed significantly according to the technology of the implanted lens. AT LISA Tri, SA60AT and PanOptix showed the highest values of far distance retinal image quality, while the lowest PSFw2 Strehl ratios were displayed by Miniwell, Mplus MF30 and Precizon Presbyopic.
基金financed in part by the Network for Cooperative Research in Health“OFTARED”—Reference:RD16/0008/0012Funded by Instituto de Salud Carlos IIIco-funded by European Regional Development Fund(ERDF),Project"A way to make Europe".
文摘Background:To study and compare the clinical optical image quality following implantation with different premium IOLs by analysing the point spread function(PSF)Strehl ratio using a pyramidal wavefront sensor(PWS)-based aberrometer.Methods:This study included 194 eyes implanted with:(a)19 AcrySof SA60AT(control group);(b)19 Miniwell;(c)24 LENTIS Mplus LS-313 MF30;(d)33 LENTIS Mplus LS-313 MF15;(e)17 AkkoLens Lumina;(f)31 AT LISA Tri 839MP;(g)20 Precizon Presbyopic;(h)20 AcrySof IQ PanOptix;(i)11 Tecnis Eyhance.Main outcome measures were PSF Strehl ratio,PSF Strehl ratio excluding second-order aberrations(PSFw2),total root mean square(RMS),low-order aberration(LOA)and high-order aberration(HOA)RMS measured by PWS aberrometer.Results:AT LISA Tri had the highest PSFw2 Strehl ratio at both 3.0-and 4.0-mm pupil size(0.52±0.14 and 0.31±0.10;P<0.05),followed by SA60AT(0.41±0.11 and 0.28±0.07)and PanOptix(0.4±0.07 and 0.26±0.04).AT LISA Tri was found to provide a significantly better retinal image quality than PanOptix at both 3.0 mm(P<0.0001)and 4.0 mm(P=0.004).Mplus MF15 was found to be significantly better than Mplus MF30 at both 3.0 mm(P<0.0001)and 4.0 mm(P=0.002).Total RMS,LOA RMS,HOA RMS,PSF Strehl ratio and PSFw2 varied significantly between the studied groups(P<0.001).Conclusions:Far distance clinical image quality parameters measured by PWS aberrometer differed significantly according to the technology of the implanted lens.AT LISA Tri,SA60AT and PanOptix showed the highest values of far distance retinal image quality,while the lowest PSFw2 Strehl ratios were displayed by Miniwell,Mplus MF30 and Precizon Presbyopic.
文摘Background:To evaluate the safety,efficacy,refractive outcomes and causes for bilensectomy[phakic intraocular lens(plOL)explantation with cataract surgery and pseudophakic intraocular lens(IOL)implantation]in patients previously implanted with posterior chamber plOLs(PC plOLs).Methods:This multi-center retrospective study included 87 eyes of 55 patients who underwent bilensectomy for PC plOL with a follow-up time of 12 months.The uncorrected and corrected distance visual acuities(UDVA,CDVA),endothelial cell density before and after bilensectomy were assessed,as well as the cause of bilensectomy and intra or postoperative complications.Results:There was a statistically significant improvement in UDVA and CDVA after bilensectomy(P=0.00).The main reason for bilensectomy was cataract development(93.1%of the cases),followed by miscalculation of lens size,and corneal edema.The endothelial cell count remained stable without a statistically significant change after surgery(P=0.67).The refractive efficacy index was 0.8,none of the patients lost lines of CDVA after surgery,73%of the patients were within±1.0D(spherical equivalent)of the target refraction.Intraoperative complications were one posterior capsule rupture with the IOL implanted in the sulcus,and three eyes required the use of pupil expanders for adequate pupil dilation.Postoperatively,one eye developed retinal detachment.The three plOLs models explanted were the implantable collamer lens(ICL);implantable phakic contact lens(IPCL)and the phakic refractive lens(PRL).Conclusions:Good safety and visual outcomes were observed one year after bilensectomy for PC plOLs.There were few intra and postoperative complications and there was no significant endothelial cell loss after the bilensectomy procedure.
基金This publication has been carried out in the framework of the Red Tematica de Investigacion Cooperativa en Salud(RETICS),referenee number RD 16/0008/0012,financed by the Instituto Carlos Ⅲ-General Subdirection of Networks and Cooperative Investigation Centers(R&D&I National Plan 2008-2011)and the Euro pea n Regional Developme nt Fund(Fondo Europeo de Desarrollo Regional FEDER).
文摘This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the eye after the extrusion of the non-perforating keratoprosthesis(Kpro)KeraKlear(KeraMed,USA).The non-perforating Kpro was extruded after a mean period of 21.4±21.8 months due to melting.In two cases,the keratoplasty was performed the same day of the non-perforating Kpro removal due to a severe melting,while in the other three cases it was performed 1 to 3 months later.Two eyes received a DALK,but in 3 eyes a macroscopic Descemetzs membrane perforation forced the conversion into a PK.The mean follow-up period after the keratoplasty was 16.8±6.6 months.No cases of rejection were recorded.All the 5 eyes achieved"anatomical success"(transparent graft,with no signs of infection or inflammation).Two eyes showed limited functional success"because the achievement of the best visual potential was prevented by the development of glaucomatous optic atrophy during the follow-up period.In conclusion,this short report presents an unexpected success of a keratoplasty performed with a tectonic purpose after the extrusion of the non-perforating Kpro because the corneal graft remained transparent,without neovascularization or scarring during the follow-up period.This initial evidence shows some encouraging results reg a rd i ng graft survival rate and the achievement of a useful visual rehabilitation with keratoplasty after a nonperforating Kpro failure in stead of repeating the Kpro implantation.
基金funded by Network for Cooperative Research in Health"OFTARED"(Reference:RD16/0008/0012),Instituto de Salud CarlosⅢllandwas co-funded by European Regional Development Fund(ERDF),"Away to make Europe"。
文摘Purpose:To evaluate the clinical and visual outcomes,quality of near vision and the influence of photic phenomena in patients bilaterally implanted with a new Precizon Presbyopic multifocal intraocular lens(IOL).Methods:In this prospective consecutive case series,20 eyes of 10 patients were included(mean age 63.80±12.55 years).Uncorrected and corrected visual acuity(far,intermediate and near),subjective refraction,binocular defocus curve,contrast sensitivity(CSV-1000)and quality of vision and satisfaction questionnaires were measured.The follow-up was 12 months after surgery.Results:At 12 months after surgery,uncorrected distance visual acuity(UDVA)improved with surgery(P=0.001)with a value of 0.08±0.08 logMAR.Uncorrected near visual acuity(UNVA)was 0.22±0.12 logMAR and distance corrected near visual acuity(DCNVA)was 0.16±0.13 logMAR.Intermediate distance visual acuity(UIVA)was 0.22±0.10 logMAR.Contrast sensitivity outcomes were similar to normal population in photopic conditions and slightly reduced in mesopic conditions of lighting.Defocus curve showed that this multifocal iOL was able to provide a visual acuity(VA)equal to or better than 0.16 logMAR between defocus levels of+1.00 to-2.50 D.Good patient satisfaction was obtained in quality of vision and satisfaction questionnaires outcomes.Conclusions:The Precizon Presbyopic NVA IOL(OPHTEC BV)provides good visual outcomes.This multifocal IOL provides a high percentage of spectacle independence due to good VA at far,intermediate and near distances and satisfactory contrast sensitivity.High patient satisfaction was observed in quality of vision and satisfaction questionnaires with a low percentage of patients manifesting photic phenomena.
基金This publication has been carried out in the framework of the Red Temática de Investigación Cooperativa en Salud(RETICS),reference number RD16/0008/0012financed by the Instituto Carlos III–General Subdirection of Networks and Cooperative Investigation Centers(R&D&I National Plan 2008–2011)the European Regional Development Fund(Fondo Europeo de Desarrollo Regional FEDER).
文摘This short report includes 5 eyes of 5 patients(mean age 63.2±12 years)who underwent a tectonic keratoplasty[deep anterior lamellar keratoplasty(DALK)or penetrating keratoplasty(PK)]in order to rehabilitate the eye after the extrusion of the non-perforating keratoprosthesis(Kpro)KeraKlear(KeraMed,USA).The non-perforating Kpro was extruded after a mean period of 21.4±21.8 months due to melting.In two cases,the keratoplasty was performed the same day of the non-perforating Kpro removal due to a severe melting,while in the other three cases it was performed one to 3 months later.Two eyes received a DALK,but in 3 eyes a macroscopic Descemet membrane perforation forced the conversion into a PK.The mean follow-up period after the keratoplasty was 16.8±6.6 months.No cases of rejection were recorded.All the 5 eyes achieved“anatomical success”(transparent graft,with no signs of infection or inflammation).Two eyes showed limited“functional success”because the achievement of the best visual potential was prevented by the development of glaucomatous optic atrophy during the follow-up period.In conclusion,this short report presents an unexpected success of a keratoplasty performed with a tectonic purpose after the extrusion of the non-perforating Kpro because the corneal graft remained transparent,without neovascularization or scarring during the follow-up period.This initial evidence shows some encouraging results regarding graft survival rate and the achievement of a useful visual rehabilitation with keratoplasty after a nonperforating Kpro failure instead of repeating the Kpro implantation.
