Prediction Error Stabilization and Long-Term Standard Results with a Monofocal Intraocular Lens

Macías-Murelaga, B.; Garay‐Aramburu, Gonzaga; Bergado-Mijangos, Roberto; Coello-Ojeda, Daniel; Ozaeta, Itziar; García-Gómez, P.J.; Garrido-Fierro, Jesús; Rodríguez‐Vallejo, Manuel; Fernández, Joaquín

doi:10.3390/vision6010005

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…In the evaluation of PE, if we use objective refraction instead of subjective refraction, we will obtain PE with some myopic bias owing to the autorefractometers tendency to overestimate myopia or underestimate hyperopia. 8 Nevertheless, the subjective refraction measured at a distance of 3 m instead of 6 m or infinite underestimates the myopia obtained because of the compensation exerted by the proximal vergence (−0.33D at 3 m). Both examples of systematic errors are generally compensated for with the formula constant adjustment.…”

Section: Influence On Intraocular Lens Power Calculationmentioning

confidence: 94%

“…The clinical refraction won't be reliable until one month after surgery, given that it can be unstable until 3 months or even 6 months. 8 , 18 Target refraction expected by the surgeon, especially when the refractive residual error has been planned in order to program a monovision or improve the intermediate vision. 19 Corneal astigmatism in the implantation of non-toric IOLs, along with the objective refraction, will be the starting point of the astigmatism to be adjusted in the subjective refraction.…”

Section: Important Considerations Before Starting Refractionmentioning

confidence: 99%

“…The clinical refraction won't be reliable until one month after surgery, given that it can be unstable until 3 months or even 6 months. 8 , 18 …”

Section: Important Considerations Before Starting Refractionmentioning

confidence: 99%

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Refraction and defocus curves in eyes with monofocal and multifocal intraocular lenses

Rodríguez‐Vallejo¹,

Burguera²,

Rocha‐de‐Lossada

et al. 2023

Journal of Optometry

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Section: Influence On Intraocular Lens Power Calculationmentioning

confidence: 94%

Section: Important Considerations Before Starting Refractionmentioning

confidence: 99%

See 1 more Smart Citation

Refraction and defocus curves in eyes with monofocal and multifocal intraocular lenses

Rodríguez‐Vallejo¹,

Burguera²,

Rocha‐de‐Lossada

et al. 2023

Journal of Optometry

Self Cite

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Fluctuations of Anterior Chamber Depth and Astigmatism in Pseudophakic Eyes

Tutchenko,

Patel,

Skovron

et al. 2024

OPTH

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Purpose To explore the significance of changes in anterior chamber depth (ΔACD) and astigmatism between 4 and 8 weeks following uneventful phacoemulsification. Patients and Methods Anterior chamber depth (ACD, mm), autorefractometry and subjective refraction were monitored in pseudophakic eyes implanted with non-toric IOLs (group 1, SA60AT, n=36; group 2, SN60WF, n=34; group 3, ICBOO, n=16) and phakic control group (n=30, group 4a, for ACD and autorefractometry) over four weeks. Changes in subjective refractions were compared with repeatability in normal phakic eyes (n=30, group 4b). Results Reporting key results (p<0.01), mean (±sd 95% CI) ΔACD values (ACD at start minus ACD at four weeks) were +0.02 (±0.37, −0.16 to 0.08), +0.22 (±0.51,0.05 to 0.39), −0.33 (±0.51, −0.58 to −0.08), −0.02 (±0.07, −0.04 to 0.01) in groups 1–4a respectively. Differences were significant (1-way ANOVA, F=7.02). Pooling data from the pseudophakic eyes (n=86) induced astigmatism (IA) by autorefractometry was significantly greater in comparison with group 4a [−0.78D (±0.67, −0.92 to −0.64) and −0.19D (±0.16, −0.25 to - 0.13)]. IA power correlated with the initial power of refractive astigmatism at 4 weeks (A), [IA = 0.36A−0.30 (r 2 =0.207) and IA = 0.39A−0.29 (r 2 =0.232) by autorefractometry and subjective refraction, respectively]. In groups 1–3, vector analysis revealed i) the change in refraction in over 55% of eyes was beyond the 95% confidence interval limits observed in groups 4a and 4b, ii) some significant associations between changes in vectors describing astigmatism with ΔACD and IOL labelled power. Conclusion Changes in ACD and refraction still occur four weeks after unremarkable phacoemulsification and the inter-relationship depends on IOL design/type. Other factors, such as tilt or dislocation of the IOL along the X-Y axes parallel to Listing’s plane, accompanying changes in ACD are expected to affect the postop astigmatism.

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Visual Performance at All Distances and Patient Satisfaction With a New Aspheric Inverted Meniscus Intraocular Lens

Marín,

Hervella,

Villegas

et al. 2023

J Refract Surg

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Purpose: To evaluate visual performance, spectacle independence, and quality of vision of new intraocular lenses (IOLs) for presbyopia correction with an aspheric inverted meniscus optical design (ArtIOLs; Voptica SL) in patients undergoing bilateral cataract surgery. Methods: In this prospective study, 60 eyes from 30 patients implanted bilaterally with Art40 and Art70 IOLs were included. These new IOLs were designed with an inverted meniscus shape to improve the peripheral performance and with aspheric surfaces to induce different amounts of negative spherical aberration in each IOL model. Distance-corrected and uncorrected through-focus visual acuities and contrast sensitivity were measured 1 to 3 months after surgery. Twenty-eight patients answered Patient Reported Spectacle Independence (PRSIQ) and Quality of Vision (QoV) questionnaires. Results: Mean monocular (Art40 and Art70) and binocular (Art40/70) corrected distance visual acuities (CDVA) were zero logMAR (20/20). Binocular uncorrected distance visual acuity (UDVA) at far, intermediate (66 cm), and near (40 cm) distances was 0.00 ± 0.01, 0.01 ± 0.03, and 0.09 ± 0.09 logMAR, respectively. Spectacle independence was achieved by 24 (85.7%) patients for far and intermediate vision and 20 patients (71.4%) for near vision. The number of patients never reporting experiencing glare, halos, and starbursts was 28, 27, and 26 (100%, 96.4%, and 92.9%), respectively. Conclusions: The binocular combination of two ArtIOLs models (Art40 and Art70) significantly extended the depth of focus up to at least 40 cm. This combination resulted in a full range of vision with a high level of spectacle independence and without the compromise of halos or dysphotopsias. [ J Refract Surg . 2023;39(9):582–588.]

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Prediction Error Stabilization and Long-Term Standard Results with a Monofocal Intraocular Lens

Cited by 3 publications

References 29 publications

Refraction and defocus curves in eyes with monofocal and multifocal intraocular lenses

Refraction and defocus curves in eyes with monofocal and multifocal intraocular lenses

Fluctuations of Anterior Chamber Depth and Astigmatism in Pseudophakic Eyes

Visual Performance at All Distances and Patient Satisfaction With a New Aspheric Inverted Meniscus Intraocular Lens

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