Question 15 All are true for Tear substitutes Or Artificial tears except: APolyacrylic acid (carbomer) is a gel that is hydrophilic, helping it to form a stable tear film, andincreases retention time. BHyaluronic acid has much greater retention times than celluloses or polyvinyl alcohols. CArtificial tears or ocular lubricants are generally formulated as solutions consisting of inorganic ions (0.9% NaCl) and polymers to increase wettability and retention time. DCommonly used polymers include polyvinyl alcohol and semisynthetic celluloses. ← PreviousNext →
