Accuracy of New Intraocular Lens Calculation Formulae in Eyes Undergoing Silicone Oil Removal/Pars Plana Vitrectomy-Cataract Surgery

Xu, Chunli; Zhang, He; Xu, Yan; Qin, Zuoxin; Ren, Jiayun; Wang, Lu; Wan, Junli; Wang, Ziran; Liu, Bo; Wu, Nan; Liu, Xi; Liu, Yong

doi:10.1097/iae.0000000000003846

Cited by 4 publications

(1 citation statement)

References 31 publications

(55 reference statements)

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“…It is possible that the lens constants on iolcon.org used to calculate the BU2 predictions for the present study, are not well optimized for use in eyes with prior SB. Although BU2 has been found to perform better than other formulas in eyes with concomitant PPV and cataract surgery, 13 it is possible that the changes in the ACD/AL ratio identified in the present study perturb the effective lens position calculation for the BU2 formula in an unnatural way, thereby making the formula's predictions less accurate. Finally, the increased variability could be related to our inclusion of eyes with less than logMAR 0.301 (≈20/40) CDVA, which would have an inherently more ambiguous refractive endpoint.…”

Section: Discussionmentioning

confidence: 66%

Cataract Outcomes Following Scleral Buckle Surgery for Retinal Detachment

Devireddy,

Borkhetaria,

Cannon

et al. 2024

OPTH

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To investigate refractive, visual, and safety outcomes of cataract surgery performed after scleral buckling (SB) for retinal detachment (RD). Patients and methods: A chart review at an academic medical center identified eyes with history of SB followed by subsequent cataract extraction between 2010 and 2022. Eyes with less than 3 weeks follow-up, silicone oil at time of biometry measurement, previous cornea surgery, or co-existing pathology impacting refractive outcomes were excluded. Predicted postoperative spherical equivalents (SE) were calculated with the Barrett Universal II (BU2), Kane, and SRK/T formulas for the implanted intraocular lens (IOL), and complications occurring within 1 year of surgery were abstracted. Results: Sixty eyes of 60 patients met criteria for inclusion, and 40 (66.7%) had postoperative refraction recorded. Absolute prediction errors were 0.49, 0.45, and 0.52D with BU2, Kane, and SRK/T, respectively. Actual postoperative refraction was within 0.5 and 1.0 D of predicted in 26 (65.0%) and 36 (90.0%) using BU2, 23 (58%) and 37 (93%) using Kane, and 21 (52.5%) and 36 (90.0%) using SRK/T. In eyes with macula-on RD, corrected distance visual acuity (CDVA) of logMAR 0.301 (≈20/40) and logMAR 0.544 (≈20/70) or better was achieved in 12 (75.0%) and 15 (93.8%) of eyes. For macula-off RD eyes, these proportions were 19 (63.3%) and 24 (80.0%), respectively. Posterior capsular opacification requiring Nd: YAG capsulotomy was the most frequent complication in 30 (56.7%) eyes. Conclusion:Refractive outcomes of cataract surgery following SB may be modestly reduced, even when using modern formulas. Nevertheless, cataract surgery in this population results in favorable visual outcomes. Plain Language Summary:The retina is the part of the eye that is responsible for converting incoming light into a signal that the brain can interpret. A retinal detachment is an emergent condition in which the retina is torn away from its normal position. Scleral buckling is one method of surgically reattaching the retina. Although quite successful, scleral buckling can cause changes to the shape of the eye, and also increases the risk of opacification of the natural lens of the eye, otherwise known as a cataract. The purpose of this study is to investigate the outcomes of cataract surgery in eyes with prior scleral buckle surgery. The results show that despite advancements in methods of measuring the shape of the eye, calculating the appropriately powered IOL to implant, and surgical technique, cataract surgery in eyes with prior scleral buckling may result in poorer outcomes compared to eyes with no history of scleral buckling.

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Section: Discussionmentioning

confidence: 66%

Cataract Outcomes Following Scleral Buckle Surgery for Retinal Detachment

Devireddy,

Borkhetaria,

Cannon

et al. 2024

OPTH

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The LISA-PPV Formula: An Ensemble Artificial Intelligence-Based Thick Intraocular Lens Calculation Formula for Vitrectomized Eyes

Zhang,

Jin,

Han

et al. 2024

American Journal of Ophthalmology

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Correspondence

Wang,

Pantanelli

2024

Retina

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However, only 60 eyes met the inclusion criteria, and 57 completed the predefined follow-up.We agree with Sean Cho et al that a longer followup period could have reduced the difference between the two groups in our study. However, we would like to point out that the Tabatabaei study 2 cited by Sean Cho et al showed better outcomes with early pars plana vitrectomy (PPV) than tap and inject (T&I) at 6 months of follow-up. In addition, even if the differ-Correspondence e37

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Accuracy of New Intraocular Lens Calculation Formulae in Eyes Undergoing Silicone Oil Removal/Pars Plana Vitrectomy-Cataract Surgery

Cited by 4 publications

References 31 publications

Cataract Outcomes Following Scleral Buckle Surgery for Retinal Detachment

Cataract Outcomes Following Scleral Buckle Surgery for Retinal Detachment

The LISA-PPV Formula: An Ensemble Artificial Intelligence-Based Thick Intraocular Lens Calculation Formula for Vitrectomized Eyes

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