Evaluation of an Investigational Hearing Screening Device () to Demonstrate Acoustic Brainstem Response among Normal-hearing Adults.

Objective: This pilot human trial demonstrates the ability of the investigational newborn hearing screening device to provide acoustic stimulation to produce evoked potentials, as well as its ability to capture and acquire auditory evoked potentials, especially the auditory brainstem response (ABR) wave V. This pilot study also demonstrates the ease of recognizing and identifying ABR waves in the graphical presentation of the evoked potentials over time.

Methods: Fourteen normal-hearing adults or a total of twenty-eight (28) normal-hearing adult ears underwent auditory brainstem response testing using the investigational hearing screening device.

The use of computerized videokeratography as an aid in fitting rigid gas permeable contact lenses.

Purpose: To assess the efficacy of computerized corneal topography in (1) fitting cosmetic rigid gas permeable contact lenses on normal corneas and (2) patients who have keratoconus.

Methods: In study 1, 26 patients were fitted with cosmetic contact lenses. In 13 patients, the first rigid gas permeable lens was chosen on the basis of corneal topography using the EyeSys videokeratoscope and contact lens software version 2.

A comparison of conventional and disposable extended wear contact lenses.

The charts of 126 extended wear contact lens patients (65 disposable and 61 conventional extended wear lens users) were reviewed for subjective and objective contact lens problems. We found that the number of complication events per person per year of lens wear was higher for conventional extended lens wearers than for disposable extended wear patients. There was a trend in both groups toward decreased numbers of complications in the second and third years of lens wear.

Treatment of giant papillary conjunctivitis with cromolyn sodium.

We evaluated the efficacy of cromolyn sodium in the management of contact lens patients with GPC. Fourteen of 20 patients (70%) with moderate to severe giant papillary conjunctivitis (GPC) were able to continue wearing contact lenses with the use of 4% sodium cromolyn eye drops. These patients had all failed to stay symptom free with our standard method of treatment (i.