Southern College of Optometry is a college of optometry in the United States. It is located in Memphis, Tennessee and is dedicated to the study of optometry, the field of medicine that includes not only the performance of refractive eye examinations and the fitting of necessary corrective lenses or vision therapy, but also the diagnosis and treatment of numerous ocular diseases. After completing a 4-year graduate program, students at SCO receive the degree of Doctor of Optometry .SCO has often been distinguished for its high National Board passage rates. The college has consistently surpassed the average National Passage Rate, and currently holds passage rates of 92%, 98%, and 99% on Part I, Part II, and Part III respectively of the most recent National Board Examinations. Wikipedia.
Fuller D.G.,Southern College of Optometry
Optometry and Vision Science | Year: 2016
PURPOSE: This study examines the accuracy of neophyte clinicians’ assessments of central corneal clearance (CCC) of a corneoscleral lens using lens center thickness (CT) as a biometric scale. METHODS: A normal participant was fit with a corneoscleral lens on both eyes. Observers (n = 34) from the final semester of their fourth year in optometric clinical training were instructed to estimate the amount of CCC through the approximate geometrical center of the lens using a standardized script which included a photograph identifying various zones. Observer estimates were then compared against anterior segment-OCT (AS-OCT) values obtained during calibration. RESULTS: Mean observer estimates of central corneal clearances were OD 220.5 ± 121.microns (range 50 to 480 microns) and OS 398.0 ± 159.1 microns (range 140 to 800 microns). The mean AS-OCT values were OD 105.5 ± 11.microns (range 84 to 121 microns) and OS 340.8 ± 15.2 microns (range 315 to 362 microns). Mann-Whitney test was statistically significant for comparison of median values OD (177.0; p = 0.001) and OS (260.0; p = 0.012). CONCLUSIONS: Neophyte clinicians in the final semester of their fourth year of optometric clinical training tend to significantly overestimate the amount of CCC in a normal subject with declining accuracy as the amount of clearance diminishes. © 2016 American Academy of Optometry
Lievens C.W.,Southern College of Optometry
Optometry and Vision Science | Year: 2016
PURPOSE: To assess changes in lid papillae and symptoms after use of a hydrogen peroxide–containing solution (H2O2) for 3 months by symptomatic contact lens wearers. METHODS: This randomized, controlled, investigator-masked, parallel group study enrolled symptomatic lens wearers with at least mild lid papillae who habitually used a biguanide-preserved multipurpose solution (BMPS). Subjects were randomized to habitual BMPS or H2O2 for 3 months to care for their lenses. Lid papillae severity (0–4) was graded in four zones of each eye at baseline and at 30, 60, and 90 days. Subjects rated frequency and intensity of symptoms and completed the Contact Lens Dry Eye Questionnaire (CLDEQ-8) at the same time points. Lens cases used for 1 month were collected from subjects in the H2O2 group, and residual peroxide concentration was analyzed at disinfection time. RESULTS: In all, 131 subjects were randomized to H2O2 (n = 64) or BMPS (n = 67) and underwent post-baseline assessment. The H2O2 group showed significantly greater improvements in lid papillae from baseline to day 90 than the BMPS group (H2O2, least square mean [LSM] difference [baseline–day 90] in maximum score 0.904 [95% CI 0.744–1.064]; BMPS, LSM difference 0.423 [95% CI 0.271–0.576]; p < 0.001). Frequency and intensity of symptoms, including grittiness, end-of-day dryness, irritation, burning/stinging, itchiness, and blurry vision, were significantly lower for H2O2 than for BMPS at days 30, 60, and 90 (all p ≤ 0.045), as were mean CLDEQ-8 scores (3-mo scores 10.6 ± 6.30 vs.15.0 ± 7.29, p < 0.001). Residual peroxide concentration in 61 used lens cases ranged from 6 to 55 ppm (mean, 15 ± 8 ppm) and 95% of cases had residual peroxide less than 30 ppm. CONCLUSIONS: Symptomatic contact lens wearers using the H2O2 solution showed greater reductions in lid papillae and symptoms at 90 days than did subjects using BMPS. Cases used for 1 month neutralized peroxide at disinfection time to levels below those detectable by ocular tissues. © 2016 American Academy of Optometry
Borgman C.J.,Southern College of Optometry
Clinical and Experimental Optometry | Year: 2016
Multiple myeloma is a neoplastic plasma-cell disorder resulting from malignant plasma cells in the bone marrow. It can cause a hyperviscosity syndrome secondary to the paraproteinaemia associated with the disease. The increased hyperviscosity can lead to retinal vein occlusions and other ocular problems that may challenge clinicians. In patients with multiple myeloma and hypertension and/or diabetes mellitus, retinal changes appear similar and changes due to one disease or the other may be difficult to determine. A 48-year-old white female presented to the clinic with a complaint of blurry vision in her left eye. A full comprehensive ocular examination revealed a central retinal vein occlusion presumably from the patient's history of hypertension, diabetes mellitus and hypercholesterolaemia. Further bloodwork revealed monoclonal protein in the patient's serum and an increased percentage of plasma cells in the bone marrow. She was diagnosed with monoclonal gammopathy of undetermined significance, part of the multiple myeloma disease spectrum. She was referred to a retinal specialist for initiation of intravitreal injections of anti-vascular endothelial growth factor. Multiple myeloma has been implicated in younger patients as an underlying cause of retinal vein occlusions. Multiple myeloma should be considered as a differential diagnosis in young patients with retinal vein occlusions, even if other risk factors for venous occlusion like hypertension, diabetes mellitus and hypercholesterolaemia are present. Timely referral to the patient's primary care physician and haematologist is important for appropriate treatment and control of underlying systemic conditions. © 2015 The Authors. Clinical and Experimental Optometry © 2015 Optometry Australia.
Fuller D.G.,Southern College of Optometry |
Alperin D.,Case Western Reserve University
Optometry and Vision Science | Year: 2013
PURPOSE: To search for differences in corneal asphericity on the basis of ethnicity between African-American and white populations. METHODS: A prospective cohort design was used to analyze corneal asphericity (Q value) data obtained by Pentacam HR (Oculus, Wetzlar, Germany) on right eyes from African-American (n = 80) and white (n = 80). Subjects were stratified by ethnicity, age, and spherical equivalent (SE) refractive error. Q values were obtained from each quadrant (superior, nasal, inferior, and temporal) and two meridians (horizontal and vertical). RESULTS: The mean Q values were African-Americans -0.26 ± 0.19 and whites -0.20 ± 0.12, indicating that the eyes of African-Americans were significantly more prolate (p = 0.003) than those of whites. There was a significant difference between mean Q values for ethnic groups only in the 30- to 39-year olds (p = 0.01) and there was a lack of correlation with age in both ethnic groups. Q value contrasts by gender were only significant between males (p = 0.01). There was a lack of correlation between Q value and SE for either ethnic group. Age group contrasts between ethnic groups found significant differences for those with SE greater than 0.00 D to -3.00 D (p = 0.05) and greater than 0.00 D to +3.00 D (p = 0.05). Comparison of mean Q values in opposing meridians within and across ethnic groups were significant, although neither group showed significant differences between horizontal and vertical meridians. CONCLUSIONS: Corneal asphericity as represented by mean Q value varies significantly between African-Americans and whites. The greatest differences are evident in opposing quadrants and appear to be little influenced by age, gender, or SE. Copyright © 2013 American Academy of Optometry.
Ridder W.H.,Southern College of Optometry |
Zhang Y.,Pfizer |
Optometry and Vision Science | Year: 2013
PURPOSE: Visual disturbance is a common symptom reported by patients with dry eye disease (DED). The purpose of this study was to evaluate visual performance, including reading speed and contrast sensitivity, in control and DED subjects. METHODS: Fifty-two DED patients (mild, n = 17; moderate, n = 22; severe, n = 13; based on corneal staining and the Ocular Surface Disease Index ≥20) and 20 control subjects (Ocular Surface Disease Index <13, no corneal staining) took part in this study. The age ranges for the control and DED patients were 18 to 45 years and 19 to 84 years, respectively. Contrast sensitivity was measured using the Holladay Automated Contrast Sensitivity System, and reading speed was determined using the Wilkins Rate of Reading Test. Analysis of covariance was conducted to compare clinical characteristics among subject groups while adjusting for age, sex, and study site. Partial correlation coefficients from linear regression were used to measure the linear relationship between contrast sensitivity and reading speed with DED parameters. RESULTS: The log of the minimum angle of resolution visual acuities and contrast sensitivity were not significantly different across subject groups. The DED patients (134.9 ± 4.95 words per minute) exhibited slower reading speeds than the control subjects (158.3 ± 8.40 words per minute, p = 0.046). As DED severity increased, the reading speed decreased (141.0 ± 7.96 words per minute, 136.8 ± 7.15 words per minute, and 127.0 ± 9.63 words per minute in mild, moderate, and severe groups, respectively). Reading rate was found to correlate weakly with corneal staining based on a partial correlation coefficient (-0.345, p < 0.001) but not with other DED parameters. CONCLUSIONS: The reading rate was lower in DED subjects than that in control subjects. As the DED severity increased, the reading rate decreased. This finding is consistent with patient-reported symptoms and provides direct evidence for the impact of DED on reading performance. These findings suggest that reading speed may be used to monitor treatment benefit in DED.Copyright © 2013 American Academy of Optometry.