Table 3 The phosphate concentration of some sodium hyaluronate eye drop preparations that are commercially available in Europe.

		Phosphate, PO4 (mmol/l)
Hylo‐Comod, Ursapharm, Germany (0.1%)*		50.9
Hyabak, Laboratoires Théa, France (0.15%)		10.9
Vismed, TRB chemedica, Germany (0.18%)		10.5
Comfort Shield, i.com medical GmbH, Germany (0.15%)		2.3
Hyal‐drop, Bausch & Lomb (0.2%)		2
Fermavisc, Novartis Pharma (0.1%)		1.7
Lacrycon, Pfizer (0.14%)		<0.1

*The concentration of sodium hyaluronate is given in parentheses.