The effect of pituitary adenomas on motion perception

ABSTRACT

Objective: The purpose of this study was to investigate motion sensitivity in persons with pituitary adenomas in comparison to those without. Design and Methodology: A total of 9 patients were obtained to take part in the study alongside control patients of matching gender and ages. The following exam procedure was carried out at the UWI Optometry Clinic Brief case history; Measurement of intraocular pressures using the non-contact tonometer (NCT); Measurement of refractive errors, using the Topcon Auto-Refractor; Measurement of visual acuities, using a Snellen Chart; Colour Vision testing using Ishihara Colour Plate test and Farnsworth d15 hue discrimination colour vision test; Visual Field Test using the Humphrey's Visual Field Machine; Motion sensitivity measurement using QuickRDK program and MCT program. Results: The Levene test showed that the variance for the angular motion threshold for both patient groups was not different (p = 0.163). The t-test showed no significant difference in angular motion threshold between the two groups. The Levene test showed that the variance for the coherence threshold for both patient groups was not different (p = 0.258). The t-test showed no significant difference in coherence threshold between the two groups (P=0.764) Conclusion: Motion sensitivity is not affected in persons with pituitary adenomas according to the data analysed. However, the majority of patients had microadenomas which rarely cause visual symptoms. So, it is better concluded that motion sensitivity is not affected in persons with microadenomas.