Experimental study shows improved visual acuity and reduced swelling in corneas with contact lens combinations, suggesting effective options for wearers.
Each of 5 subjects with normal corneas was fitted with a Bausch & Lomb F3‐series Soflens® contact lens and with an experimental F3‐series ultrathin Soflens®. A best‐fit PMMA lens was worn in combination with each of the soft lenses. In addition, a best‐fit CAB lens and a tight PMMA lens were separately worn in combination with the ultrathin soft lens. Each of 3 subjects with keratoconus was fitted with an ultrathin soft lens combined with a PMMA lens. For the normal corneas, the combination that produced the least corneal edema after 5 hr was an ultrathin soft lens with either a PMMA or CAB lens of best fit. Two of the 3 keratoconic subjects were able to wear their contact lens combination for the 5‐hr test period; corneal swelling was 1.7% and 5.3%. For all subjects, acuity with a combination contact lens system was better than with a soft or hard lens alone.
No takes yet. Share an insight, caveat, or question.
Polse et al. (1977) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: