Biomedical subjects

Clifton S Otto

Publications and source records attributed to Clifton S Otto.

3 recordsLinked to original sources

PubMed2005

Device for simulating anterior segment surgery.

To provide a more realistic method for practicing anterior segment surgery, a device was designed that incorporates aspects of currently available cadaver globe fixation methods. A Styrofoam head was fitted with a funnel and tubing system that allows for direct application of variable external suction to a globe placed in an artificial socket. Prototypes were tested in a wet lab environment, which demonstrated that this method provides reliable globe fixation and allows for variable control of intraocular pressure during a variety of anterior and posterior segment surgical techniques.

Anterior Eye Segment↗

PubMed2003

Gaze-evoked amaurosis: a report of five cases.

OBJECTIVE: To highlight the various causes of gaze-evoked amaurosis. DESIGN: Retrospective noncomparative interventional case series. PARTICIPANTS: Five patients treated at our facility over the past 6 years. METHODS: Clinical presentation, radiologic studies, surgical management, and postsurgical results are presented. MAIN OUTCOME MEASURES: Visual acuity, clinical findings of gaze-evoked amaurosis. RESULTS: Only two patients had classic intraorbital etiologies, one with an intraconal cavernous hemangioma and one with an intraconal foreign body. Three patients had extraorbital processes, two with orbital fractures and one with a sinus tumor. Only two of our patients initially were aware of the gaze-evoked amaurosis at presentation. Appropriate surgery was curative in all cases. CONCLUSIONS: Gaze-evoked amaurosis is a rare condition, classically implicating intraconal orbital pathology. In one of the largest case series published to date, we found extraorbital etiologies are also capable of producing gaze-evoked vision loss. Gaze-evoked amaurosis should be suspected and tested for in any orbital condition.

Adolescent↗

PubMed2002

Warm balanced salt solution for clearing tear film precipitation during cataract surgery.

Adequate anterior segment visualization during cataract surgery can be hindered when excessive tear film secretions precipitate on the corneal surface before the initial corneal incision is made. In most cases, room-temperature balanced salt solution applied to the corneal surface clears the debris. However, in cases in which tear film precipitates persist after the use of room-temperature balanced salt solution, the application of warm balanced salt solution can provide rapid and sustained dispersion of the precipitates. We present our experience using this technique.

Adult↗