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silsoft_contact_lenses [2026/07/27 13:07] – Scott Larsonsilsoft_contact_lenses [2026/08/06 11:57] (current) – Scott Larson
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   * Base Curves: 7.5, 7.7, 7.9, 8.1, 8.3 mm   * Base Curves: 7.5, 7.7, 7.9, 8.1, 8.3 mm
   * Diameters: 11.3 mm, 12.5 mm   * Diameters: 11.3 mm, 12.5 mm
-  * Powers: +11.5D to +20.00D (1.00 D steps)+  * Powers: +12.00 to +20.00D (1.00 D steps)
  
 =====SilSoft Super Plus===== =====SilSoft Super Plus=====
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 ===Base Curve=== ===Base Curve===
  
-The standard keratometric index (n = 1.3375) relates K readings in diopters to radius of curvature in mm via the formula: +To convert K readings to curvature in mm use this formula:  
-$r = 337.5 / K$+$$r = \frac{337.5}{K}$$
  
 +Where:
  
-^Average K (D) ^Radius of Curvature (mm) ^Suggested SilSoft BC ^ +  * **r** = radius of curvature (mm) 
-|≥ 45.0 D |≤ 7.50 mm |7.5 mm (steepest)| +  * **K** = keratometry reading (diopters) 
-|43.0–44.9 D |7.50–7.85 mm |7.7 mm| +  * **337.5** = derived from the standard keratometric refractive index (n = 1.3375), where 337.5 = (1.3375 − 1) × 1000 
-|≤ 42.9 D |≥ 7.86 mm |7.9 mm</strong> (flattest)| +<WRAP round box 60%> 
 +^ Average K (D)  ^ Radius of Curvature (mm)  ^ Suggested SilSoft BC  ^ 
 +| ≥ 45.0 D       | ≤ 7.50 mm                 | 7.5 mm (steepest)     | 
 +| 43.0–44.9 D    | 7.50–7.85 mm              | 7.7 mm                | 
 +| ≤ 42.9 D       | ≥ 7.86 mm                 | 7.9 mm (flattest)     | 
 +</WRAP>
 **Age-Based Corneal Curvature** **Age-Based Corneal Curvature**
   * Newborns (0–2 weeks): Mean K ~49 D (r ≈ 6.9 mm), rapidly flattening to ~46 D by 8 weeks and ~44 D by 12 weeks   * Newborns (0–2 weeks): Mean K ~49 D (r ≈ 6.9 mm), rapidly flattening to ~46 D by 8 weeks and ~44 D by 12 weeks
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 ====Ordering==== ====Ordering====
 [[https://www.lens.com/contact-lenses/silsoft-super-plus-kids/|Lens.com]] [[https://www.lens.com/contact-lenses/silsoft-super-plus-kids/|Lens.com]]
 +
 +====Solution====
 +  * [[https://www.biotrue.com/products/contact-solution/|BioTrue by Bausch+Lomb]]
 +  * [[https://www.amazon.com/Biotrue-Hydration-Solution-Multi-Purpose-Included/dp/B09WQT2X6K/ref=sr_1_2_sspa?crid=1R4FM3LV690Y2&dib=eyJ2IjoiMSJ9.x2UzbhS2S_CuIMOH3PcT1mKyOV97c5iIqO4uC46ovT0qL_2-qxR7CFMLXnma3gH-H1x7fJOJPoWwf0s8xSwJy2sj3Ui0OiY-WRb6zRGQqlBwEGCYPJb7Z4xpHwnrdowcgYixBZUDYgYwqh8HxxjFCnecPnNhl2Wc7atyLRpLJDMTHsCAGveAZ9WeLqZmzxQdDKHl9Tr5Aijp0Ozvacu4_d5HRjATR6FL_VSm_TqgTP6NY83cRbEZ7Yl1cgtCV1UBdryvhKa9k5fTpBEmQvDDNJg5qDzBNhwIq2Gb9liQCdw.fOhxRJdQSVAsbi82cDXf2aQeyfvWdlnbpCTBh1lDfWw&dib_tag=se&keywords=biotrue&qid=1785193342&sprefix=biotru%2Caps%2C196&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1|BioTrue Multi-purpose solution on Amazon]]
 ====B&L Customer Assistance program==== ====B&L Customer Assistance program====
   * Provides free or reduced cost lenses for patients at or below the federal poverty level   * Provides free or reduced cost lenses for patients at or below the federal poverty level