2010
DOI: 10.1016/j.jcrs.2009.08.032
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Preoperative cataract grading by Scheimpflug imaging and effect on operative fluidics and phacoemulsification energy

Abstract: Preoperatively adjusting phaco parameters based on cataract grade helped improve overall efficiency by reducing the amount of energy and fluid used in the eye and reducing overall phaco time.

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Cited by 60 publications
(41 citation statements)
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“…Previous studies have pointed out that the nuclear staging classification of the Pentacam device is a good tool for preoperative planning of cataract surgery, presenting a positive correlation with ultrasound energy and fluid consumption. 6 Concerning the wavefront analysis, this score showed a lower correlation than other quantitative parameters derived from lens densitometry. Thus, we can infer that the Pentacam nuclear staging score system is not really representative of the functional state of the lens.…”
Section: Discussionmentioning
confidence: 85%
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“…Previous studies have pointed out that the nuclear staging classification of the Pentacam device is a good tool for preoperative planning of cataract surgery, presenting a positive correlation with ultrasound energy and fluid consumption. 6 Concerning the wavefront analysis, this score showed a lower correlation than other quantitative parameters derived from lens densitometry. Thus, we can infer that the Pentacam nuclear staging score system is not really representative of the functional state of the lens.…”
Section: Discussionmentioning
confidence: 85%
“…[16][17][18] Objective cataract quantification is essential for patient education and to predict phacodynamics. 6,7,9 Scheimpflug imaging enables objective lens densitometry evaluation that is not susceptible to observer variability and is considered to be a more sensitive and repeatable approach. 8,10 Wavefront analysis objectively evaluates the visual deterioration by quantifying the HOAs of the ocular optical system.…”
Section: Discussionmentioning
confidence: 99%
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“…Lens densitometry through Scheimpflug imaging is computed tomographically using the PNS (10) (Pentacam Nucleus Staging) system. This is an objective method which, when associated with the study of wavefront analysis to detect intraocular optical aberrations, assessment of light scattering (11) , and objective tests of contrast sensitivity (7) , can help us understand the actual state of functional changes in each cataract patient.…”
Section: Discussionmentioning
confidence: 99%
“…Em recente artigo publicado, Nixon (4) mostrou que há associação entre gasto de energia, uso de BSS e tempo de facoemulsificação entre vários grupos de den- Concluímos que existe uma forte associação entre o método objetivo de classificação da catarata através da imagem de Scheimplufg (PNS), tempo e gasto de energia. Assim há possibilidade de realizarmos um planejamento cirúrgico pré-operatório baseado em méto-dos objetivos da classificação da catarata, reduzindo a fluídica, o gasto de energia e tempo na cirurgia de facoemulsificação.…”
Section: Discussionunclassified