1998
DOI: 10.1016/s0161-6420(98)99050-9
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Refractive and visual outcome of hyperopic cataract cases operated on before and after implementation of the Holladay II formula

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Cited by 59 publications
(32 citation statements)
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“…19,20 It has long been recognized that unusually short eyes (Ͻ22 mm) present more of a predictive challenge for IOL formulas. [19][20][21][22][23][24] This inaccuracy has resulted in a trend away from empirically derived linear regression formulas such as the SRK I and SRK II toward the theoretic IOL power formulas such as the SRK T, Holladay I, and Hoffer Q, which all use individually calculated anterior chamber depth factors to help better predict the postoperative effective lens position and calculate the appropriate implant power based on physiologic optics. 20,25,26 Unfortunately, even these more advanced formulas continue to have difficulty and demonstrate an inverse relationship between prediction error and axial length.…”
Section: Discussionmentioning
confidence: 99%
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“…19,20 It has long been recognized that unusually short eyes (Ͻ22 mm) present more of a predictive challenge for IOL formulas. [19][20][21][22][23][24] This inaccuracy has resulted in a trend away from empirically derived linear regression formulas such as the SRK I and SRK II toward the theoretic IOL power formulas such as the SRK T, Holladay I, and Hoffer Q, which all use individually calculated anterior chamber depth factors to help better predict the postoperative effective lens position and calculate the appropriate implant power based on physiologic optics. 20,25,26 Unfortunately, even these more advanced formulas continue to have difficulty and demonstrate an inverse relationship between prediction error and axial length.…”
Section: Discussionmentioning
confidence: 99%
“…Published experience with this is limited but thus far it has been reported to show increased accuracy and decreased variability in extremely short eyes. 23,24 We hope to study this prospectively in the future.…”
Section: Discussionmentioning
confidence: 99%
“…In irregular corneas, such as much more precise with the current theoretical generathose that have had radial keratotomy (RK), laser thertion of formulas and newer biometry devices. 1 Intraocumal keratoplasty (LTK), hexagonal keratotomy (HK), lar lens power calculation remains a challenge in eyes penetrating keratoplasty, photorefractive keratectomy with previous keratorefractive surgery, however. The (PRK), or laser in situ keratomileusis (LASIK), the 4 difficulty is accurately determining the corneal refractive sample points are not sufficient to provide an accurate power (K.J.…”
mentioning
confidence: 99%
“…As novas fórmulas para o cálculo de lentes intra-oculares, como a Holladay 2, utilizam não apenas o comprimento axial e a ceratometria média, mas também a idade do paciente, a refração, a medida horizontal branco a branco, a profundidade da câmara anterior e a espessura do cristalino (19) . Estes dois úl-timos dados podem ser facilmente obtidos com o sistema Scheimpflug (11) .…”
Section: I S C U S S ã Ounclassified