Binocular vision parameters and visual performance in bilateral keratoconus corrected with spectacles versus rigid gas-permeable contact lenses Luis Fernando Barba¿Gallardo; Lina María Jaramillo-Trejos; Ana María Agudelo-Guevara; Andrea Paola Galicia-Durán; Elizabeth Casillas¿Casillas;

Red and green defocus curves and duochrome test in different age groups Riccardo Rolandi; Fabrizio Zeri; Alessandro Duse; Giulia Carlotta Rizzo; Erika Ponzini; Silvia Tavazzi;

Correlations between clinical measures and symptoms: Report 1: Stereoacuity with accommodative, vergence measures, and symptoms Samuel Otabor Wajuihian;