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. 2023 Sep 19;2023(9):CD014791. doi: 10.1002/14651858.CD014791.pub2

Maldonado‐Codina 2021.

Methods RCT, cross‐over design
Participants Inclusion criteria: 18 years of age and older; currently using SCL or previous 6 months; sphere between −1.00 and −6.00 DS; cylinder between −0.75 and −2.00 DC; attain at least 0.20 logMAR high contrast VA in each eye; able to use SCL at least 8 hours per day, 5 days per week
Exclusion criteria: ocular or systemic disorder that would normally contradict SCL wear; use of topical eye medication; cataract or refractive surgery; pregnant or breastfeeding
Interventions Somofilcon A
  • material: silicone hydrogel

  • replacement frequency: daily


Etafilcon A
  • material: hydrogel

  • replacement frequency: daily


Nelfilcon A
  • material: hydrogel

  • replacement frequency: daily


Notes: back surface toric; dual thin zones superiorly and inferiorly
Outcomes Primary outcome:
  • subjective vision quality (0‐to‐10 numerical grading scales)

  • subjective ocular surface comfort (0‐to‐10 numerical grading scales)

  • VA (logMAR) both high and low contrast

  • ocular surface (Efron scale)

  • lens fit and rotation


Secondary outcomes: not specified
Notes Sponsorship source: "This work was funded by CooperVision Incorporated."
Author's name: Carole Maldonado‐Codina
Institution: University of Manchester, UK
Comments: whether the analysis accounted for cross‐over design was unclear