Influence of extended depth of focus intraocular lenses on visual field sensitivity

Abstract

Purpose To investigate the influence of EDOF IOLs, TECNIS Symfony ® (Johnson & Johnson Surgical Vision, Inc.), on visual field sensitivity and to compare the IOLs with other kinds of IOLs. Methods The subjects included the normal fellow eyes of patients who underwent the Humphrey Field Analyzer (HFA) 30–2 with Swedish Interactive Threshold Algorithm Fast within 6 months after cataract due to glaucoma or suspected glaucoma. Each parameter of HFA was compared among eyes implanted with TENIS Symfony ® (EDOF group), diffractive bifocal IOLs (bifocal group), and monofocal IOLs (monofocal group). Results The total of 76 eyes, including 24 eyes in the EDOF group, 26 eyes in the bifocal group, and 26 eyes in the monofocal group, were included in this study. Mean deviation (MD) of HFA was -0.24±0.58 dB in the EDOF group, -1.38±0.58 dB in the bifocal group, and 0.02±0.44 dB in the monofocal group. Foveal threshold (FT) of HFA was 35.8±1.6 dB in the EDOF group, 33.6±1.7 dB in the bifocal group, and 36.6±1.4 dB in the monofocal group. In both MD and FT, there was significant difference between the bifocal group and the others (p<0.001). There was no difference between the EDOF group and the monofocal group. Moreover, there was no significant difference between the three groups about pattern standard deviation (PSD) of HFA. Conclusion TECNIS Symfony ® may have little influence on visual field sensitivity, whereas diffractive bifocal IOLs decrease visual field sensitivity.

Implantation of diffractive extended depth-of-focus intraocular lenses in normal tension glaucoma eyes: A case series

“… 7 Evaluations of automated perimetry in non-glaucomatous eyes with diffractive EDF IOLs have identified effects similar to those with monofocal IOLs. 8 , 9 With these findings, the degradation of visual function with EDF IOLs may be permissible for cases with glaucoma.…”

Influence of implantation of diffractive trifocal intraocular lenses on standard automated perimetry

“…Previous comparisons showed significant reductions in the use of diffractive bifocal IOLs [ 1 – 4 ], and the differences ranged from 1.40 to 2.08 dB. Conversely, the difference from monofocal IOL was shown to be 0.26 D in the use of EDOF IOLs [ 3 ], although the study design and SAP setting were different. Because our previous comparison of monofocal, bifocal, and EDOF IOLs used the same protocol except for the implanted IOLs [ 4 ], we compared the MD values in the previous and current results.…”

“…In the current study, the foveal sensitivity of eyes with trifocal IOLs was lower than that of the eyes with monofocal IOLs. Takahashi et al reported a 3.0 dB significant difference in foveal sensitivity between eyes with bifocal and monofocal IOLs [ 3 ]. In the previous comparison, such a significant difference was not detected [ 4 ], whereas the mean difference (1.32 dB) was larger than in the current results.…”

“…Differences in mean deviation (MD) of 1.40—2.08 dB have been measured by standard automated perimetry (SAP) between monofocal and bifocal IOLs [ 1 – 4 ]. The influence of EDOF IOLs is comparable to that of monofocal IOLs [ 3 , 4 ]. While it is still unknown why the influence varies with the type of diffractive multifocal IOL, the loss of light and disturbed point spread function due to diffractive optics are considered possible factors [ 5 , 6 ].…”

First Experience of Multifocal and Toric Extended Depth of Focus Intraocular Lenses Implantation (Short-Term Analysis)

“…По словам производителя, эта технология использует запатентованную конструкцию ахроматической дифракционной решетки, которая корректирует хроматическую аберрацию роговицы для усиления КЧ и генерирует расширенный диапазон зрения со снижением частоты гало и глэр по сравнению с монофокальной ИОЛ [13]. В литературе доступно ограниченное количество работ, посвященных анализу результатов моно-и бинокулярной имплантации EDOF ИОЛ Tecnis Symfony [14][15][16][17][18][19][20][21]. Отдельный интерес представляет возможность имплантации ИОЛ EDOF при наличии астигматизма [22][23][24].…”