Interprofessional issues in institutional affiliations.
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Humans↗
Biomedical subjects
G G Hammack
Publications and source records attributed to G G Hammack.
Daily disposed hydrogel lenses--a comparison with biweekly replacement.
BACKGROUND: Hydrogel lenses worn daily and disposed of daily represent an extreme of the spectrum of prescribing that has not been extensively investigated. This study was undertaken to ascertain whether hydrogel lenses worn on a daily replacement schedule displayed differences in patient comfort, vision, and physiological response and as compared to lenses replaced biweekly. METHODS: Hydrogel lens wearing schedules were devised to allow the patient to, in a masked fashion, directly compare the characteristics of a 1-day-old hydrogel lens to that of one 2 weeks old. Eighteen qualifying subjects wore Bausch & Lomb Seequence 2 lenses in this investigation. RESULTS: There was neither a significant difference in visual acuity, lens condition, and corneal or bulbar conjunctival fluorescein staining, nor a significant difference in subjective ratings of wearing comfort and clarity of vision between the 1-day and biweekly worn lenses. CONCLUSIONS: No apparent advantage was found in replacing the evaluated hydrogel lenses on a daily vs. biweekly schedule when considering vision, comfort, and physiological response of the eye.
Adult↗
Video equipment recommendations for slit lamp videography.
Current developments in video technology have made videotaping through a slit lamp a useful capability available at a more reasonable cost. The technical basis of equipment needed to select or design an apparatus for slit lamp videography is reviewed. As an overview, the optimum slit lamp video apparatus would have the following criteria; the slit lamp should have zoom optics and rheostat illumination, the beam splitter should be a mirror or 70/30 type, the camera should have maximal light sensitivity (101ux) with reasonable resolution (greater than 300 lines). The recorder should be SP-Umatic or Super VHS for documentation, or consumer VHS for patient education, and the monitor should be a professional 13- or 15-inch monitor.
Humans↗
Videotape recording system for use with the slit lamp biomicroscope.
Previous attempts at capturing slit lamp biomicroscopy observations on videotape have had a limited success due to high expense, poor resolution, and/or insufficient light. A slit lamp biomicroscope-videotape recording system which incorporates current technology is described. Although the system is used primarily for contact lens research, other applications for the eye care practitioner are described.
Fundus Oculi↗