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Scott Schatz, Balamurali Vasudevan, Sara Gaib, Kimbal Cooper; Contact Lens Disinfecting Solution vs. Blister Pack: a Subjective Evaluation. Invest. Ophthalmol. Vis. Sci. 2013;54(15):515.
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To study subjectively the effect of contact lens disinfecting solution on the ocular surface in the presence of either a hydrogel or a silicone hydrogel soft contact lens.
Twenty young adult subjects were examined for this study over 2 visits. Subjects were fit (randomized) with either a hydrogel lens or silicone hydrogel lens in either eye. The lenses were pre-soaked overnight in either Puremoist or Revitalens contact lens disinfecting solution or were obtained from the blister pack in a randomized process. Subjective feedback on discomfort, burning, dryness and irritation on a scale of 1 to 5 was obtained at baseline, prior to lens insertion, and after 8 hours of wear. Chi-square analysis was performed.
There was a statistically significant increase in dryness after lens insertion for Proclear and Purevision lenses taken from the blister pack , relative to baseline (p = 0.01). Following 8 hours of lens wear, there was a statistically significant increase in burning sensation relative to baseline for all Proclear lenses. This held true whether they were obtained from the blister pack or pre-soaked in Revitalens MPDS or Puremoist MPDS (p=0.01).
Subjectively, lenses from the blister pack produced more subjective symptoms of dryness upon initial insertion than those pre-soaked in either solution. Proclear lenses produced more subjective symptoms of burning after 8 hours of wear relative to baseline irrespective of whether they were obtained from the blister pack, or pre-soaked in either solution.
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