Differences

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--- calculating_contact_lens_power_aphakia [2026/07/23 15:30] – Scott Larson
+++ calculating_contact_lens_power_aphakia [2026/08/08 18:17] (current) – [References] Scott Larson
@@ Line 17: / Line 17: @@
 ===Aphakic Contact Lens (aCL) Formula===
-$P = \frac{1334}{Al} - 0.6685 \cdot K - 15.25 + R$
+$P = \frac{1334}{Al} - 0.6685 \cdot K - 15.25 + Tr$
   * P = contact lens power
   * Al = axial eye length (mm)
   * K = mean keratometry (D)
-  * R = desired target refraction (D)
+  * Tr = desired target refraction (D)
 Go to the [[https://eyefixer.org/aphakic-contact-lens-power-calculator/|Calculator]]
@@ Line 46: / Line 46: @@
   - [[https://pubmed.ncbi.nlm.nih.gov/23706701/|Selection of an Initial Contact Lens Power for Infantile Cataract Surgery Without Primary Intraocular Lens Implantation. Trivedi RH, Wilson ME. Ophthalmology. 2013;120(10):1973-6]]
   - [[https://pubmed.ncbi.nlm.nih.gov/24924278/|The Role of Preoperative Biometry in Selecting Initial Contact Lens Power in the Infant Aphakia Treatment Study. Trivedi RH, Lambert SR, Lynn MJ, Wilson ME. Journal of AAPOS : The Official Publication of the American Association for Pediatric Ophthalmology and Strabismus. 2014;18(3):251-4]]
-  - [[https://docs.eyefixer.org/Cataract/Silsoft%20Contact%20Lenses/Correction%20of%20aphakia%20using%20biometry%20based%20contact%20lens%20calculation.pdf|Correction of Aphakia Using Biometry-Based Contact Lens Calculation in Pediatric Cataract Extraction: Introducing the Aphakic Contact Lens Formula. Lwowski C, Kaiser KP, Wenner Y, et al. Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie. 2026;:10.1007/s00417-026-07370-6]]
+  - [[https://docs.eyefixer.org/vault/Silsoft%20Contact%20Lenses/Correction%20of%20aphakia%20using%20biometry%20based%20contact%20lens%20calculation.pdf|Correction of Aphakia Using Biometry-Based Contact Lens Calculation in Pediatric Cataract Extraction: Introducing the Aphakic Contact Lens Formula. Lwowski C, Kaiser KP, Wenner Y, et al. Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie. 2026;:10.1007/s00417-026-07370-6]]
   - [[https://pubmed.ncbi.nlm.nih.gov/31517738/|Rigid Gas-Permeable Contact Lenses Fitting Philosophy for Unilateral Aphakic Infants. Zhang X, Zeng J, Zhai Z, Li C, Yang X. Eye & Contact Lens. 2020;46(6):381-384]]
   - [[https://pubmed.ncbi.nlm.nih.gov/24011524/|Predictability of Intraocular Lens Power Calculation Formulae in Infantile Eyes With Unilateral Congenital Cataract: Results From the Infant Aphakia Treatment Study. Vanderveen DK, Trivedi RH, Nizam A, Lynn MJ, Lambert SR. American Journal of Ophthalmology. 2013;156(6):1252-1260.e2]]