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[Scientific evidence and recommendations on vision screening].

Eva María López Andújar1, Carlos Alvarez-Dardet, Diana Gil-González

  • 1Universidad de Alicante, Alicante. evayart@yahoo.es

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Summary

Visual screening guidelines lack scientific evidence, particularly for children. Professional associations should base recommendations on data, not corporate interests, to improve patient care and screening effectiveness.

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Area of Science:

  • Ophthalmology
  • Public Health
  • Evidence-Based Medicine

Background:

  • Controversy exists regarding the optimal timing and target population for visual screening programs.
  • Current recommendations for visual screening vary significantly, lacking a consistent evidence base.

Purpose of the Study:

  • To systematically review the evidence supporting current visual screening recommendations.
  • To compare the existing scientific evidence with established clinical practice guidelines and expert opinions.

Main Methods:

  • A systematic review of scientific literature was conducted using Medline and Cochrane Library Plus.
  • Searches included papers in English and Spanish without date limitations; grey literature was also considered.

Main Results:

  • Recommendations for visual screening exhibit wide variability, from restrictive to permissive approaches.
  • The majority of recommendations originate from clinical practice guidelines or opinion papers, with limited high-quality studies (2 RCTs, 3 non-controlled trials, 1 cross-sectional).

Conclusions:

  • Professional associations should prioritize scientific evidence over corporate interests when formulating screening recommendations.
  • Current evidence is insufficient to validate adult visual screening recommendations or determine the ideal age for pediatric visual screening.