Anterior chamber depth measurement before and after photorefractive keratectomy. Comparison between IOLMaster and Pentacam

Bernardo, Maddalena De; Borrelli, Maria; Imparato, Roberto; Cione, Ferdinando; Rosa, Nicola

doi:10.1016/j.pdpdt.2020.101976

Cited by 24 publications

(16 citation statements)

References 36 publications

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“…It is compared with Pentacam, an earlier method which has been used in clinic for many years to evaluate its consistency. Previous study had reported that Pentacam had large ACD values than IOLMaster [26]. Besides the difference of measuring mode, the measuring diameters also are different [27][28][29].…”

Section: Discussionmentioning

confidence: 92%

Comparison of Total Corneal Astigmatism between IOLMaster and Pentacam

Cao

Bao

2022

BioMed Research International

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Purpose. To compare the total corneal astigmatism (TCA) measured by IOLMaster 700 and Pentacam and to investigate the consistency of corneal keratometry (CK) measured by IOLMaster and Pentacam. Methods. Cataract patients were retrospectively enrolled in March and April, 2021. Retrospective analysis was performed on those patients with binocular and monocular CK measured by IOLMaster and Pentacam. Results. A total of 102 patients (204 eyes) were included, 64 of whom were female (62.75%). The flat (K1) and steep (K2) CK of anterior corneal surface (ACS) and flat (TK1) and steep (TK2) of total cornea measured with IOLMaster 700 were 44.16 ± 1.60 D , 45.09 ± 1.68 D , 44.12 ± 1.62 D , and 45.14 ± 1.69 D , respectively. Those measured with Pentacam were 44.31 ± 1.57 D , 45.22 ± 1.65 D , 44.15 ± 1.67 D , and 45.19 ± 1.82 D , respectively. The astigmatism of ACS and TCA were − 0.94 ± 0.63 D and − 1.02 ± 0.69 D ( p < 0.01 ) in the IOLMaster group and − 0.90 ± 0.59 D and − 1.05 ± 0.81 D in the Pentacam group, respectively ( p < 0.01 ). TCA measurement results of IOLMaster and Pentacam were consistent ( Pearson = 0.710 , p < 0.01 ), and there was no significant difference ( p = 0.591 ). Conclusions. Total corneal astigmatism measured by IOLMaster was consistent with that measured by Pentacam. The difference between the astigmatism of anterior corneal surface and total cornea was detected in the measurement of IOLMaster and Pentacam, respectively.

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Section: Discussionmentioning

confidence: 92%

Comparison of Total Corneal Astigmatism between IOLMaster and Pentacam

Cao

Bao

2022

BioMed Research International

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“…The search found 28 articles and 9 of them were retained as relevant articles ( Table 1 ). In particular: one paper was related to changes occurred after Radial Keratotomy (RK) ( 23 ), six papers after Photorefractive Keratectomy/Laser-Assisted Sub-Epithelial Keratectomy (PRK/LASEK) ( 7 , 24 – 28 ), and two papers after Laser-Assisted in situ Keratomileusis (LASIK) ( 29 , 30 ).…”

Section: Resultsmentioning

confidence: 99%

Unexpected ocular morphological changes after corneal refractive surgery: A review

2022

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Corneal refractive surgery (CRS) currently is widely used to correct refractive errors because of its efficacy and reliability. Several studies dealt with the corneal modification induced by this type of surgery, but it is still debated if CRS can induce unexpected changes namely anterior chamber depth (ACD) and axial length (AL). A literature review was performed, including all articles regarding CRS and eye-variations from 1999 to December 2021. Excluding articles about specific systemic conditions (e.g., pregnancy), pathological conditions, post-surgical complications or about only corneal flattening and thinning post CRS, we found nine studies that met the search criteria. We divided the found articles according to the type of surgery performed (radial keratotomy, PRK/LASEK, lasik) and analyzed the results about ACD and AL. Finally, according to the literature, we can conclude that CRS not only gives a corneal flattening, thinning and biomechanical changes, but also induces AL and ACD decrease. This makes the AL and ACD measurements obtained before CRS uselessness in case of IOL power calculation.

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“…We were very interested in the paper by Katz et al 1 concerning the role of anterior chamber depth (ACD) on post-operative refractive error after phacovitrectomy, published in your journal, because in the past we published some studies concerning the ACD changes after surgery, mostly after refractive surgery. 2 …”

Section: Dear Editormentioning

confidence: 99%