Long-term Outcomes on de novo Ocular Hypertensive Response to Topical Corticosteroids After Corneal Transplantation.

PURPOSE: To determine incidence, demographics, management, and outcomes of topical steroid-induced ocular hypertension after penetrating keratoplasty (PKP) and to establish effects on intraocular pressure (IOP) and graft rejection when alternate corticosteroids are used. METHODS: A single-center, retrospective review of 568 consecutive PKPs performed between 1997 and 2010 was conducted. Data were collected on demographics, best-corrected visual acuity, surgical indications, lens status, IOP, postoperative management, and incidence of rejection. RESULTS: Eighty eyes (14.1%) of 74 patients were included. The most common indication was keratoconus (28.8%). Twenty-seven eyes (33.8%) were phakic, 46 (57.4%) had a posterior chamber intraocular lens, and 7 (8.8%) had an anterior chamber intraocular lens. Mean postoperative IOP increase was only significant in the anterior chamber intraocular lens group (18.7 mm Hg, SD 10.4; P = 0.02). The average time for developing hypertension was 9.8 months (SD 14.8) postoperatively, with an average IOP increase of 13.3 mm Hg (SD 5.9). Prednisolone acetate 1% was switched to rimexolone 1% in 64 eyes (80%) and to fluorometholone 0.1% in 16 eyes (20%), which alone achieved IOP normalization in 26 eyes (32.5%) (P < 0.01). Fifty-four eyes (67.5%) required additional antiglaucoma medication. An average IOP reduction of 12.3 mm Hg (SD 6.9) was achieved at an average of 2.3 months (SD 5.2) after the switch. Seventeen eyes (21%) developed glaucoma and 13 eyes (16.3%) developed graft rejection after switching formulations, with no statistically significant differences between rimexolone and fluorometholone (P > 0.05). CONCLUSIONS: The use of alternate topical corticosteroids may be considered in cases of steroid-induced ocular hypertension after PKP because they offer good antiinflammatory prophylaxis with reduced hypertensive response.

Severe Cutaneous Reaction to Latanoprost Eye Drops.

PURPOSE: Latanoprost is known to have several ocular side effects, including redness of the eyelids, lengthening of the eyelashes, an increase in iris pigmentation, and dryness of the eyes that causes discomfort. There are also several rarer systemic side effects reported in the literature, including chest pain. CASE REPORT: Here we report a rare case of a patient who developed a cutaneous blistering rash on both eyelids, both sides of the neck, and the dorsum of both hands after direct contact with latanoprost eye drops. The lesions cleared following withdrawal of the eye drops. CONCLUSION: Topical latanoprost can cause severe blistering of the skin that could undermine a patient's confidence in the treating medical team. Reporting of an adverse effect is difficult when a generic topical medication is used.

Bayesian inference for psychology. Part II: Example applications with JASP.

Bayesian hypothesis testing presents an attractive alternative to p value hypothesis testing. Part I of this series outlined several advantages of Bayesian hypothesis testing, including the ability to quantify evidence and the ability to monitor and update this evidence as data come in, without the need to know the intention with which the data were collected. Despite these and other practical advantages, Bayesian hypothesis tests are still reported relatively rarely. An important impediment to the widespread adoption of Bayesian tests is arguably the lack of user-friendly software for the run-of-the-mill statistical problems that confront psychologists for the analysis of almost every experiment: the t-test, ANOVA, correlation, regression, and contingency tables. In Part II of this series we introduce JASP ( http://www.jasp-stats.org ), an open-source, cross-platform, user-friendly graphical software package that allows users to carry out Bayesian hypothesis tests for standard statistical problems. JASP is based in part on the Bayesian analyses implemented in Morey and Rouder's BayesFactor package for R. Armed with JASP, the practical advantages of Bayesian hypothesis testing are only a mouse click away.

Ulcerative keratitis following particulate elemental gold deposition.

PURPOSE: To describe a case of 68-year-old male industrial chemist who received a chemical injury after a gold/amine compound exploded causing bilateral eye injuries. No apparent long-term problems were anticipated. After cataract extraction 40 years later, he developed a localized ulcerative keratitis adjacent to embedded gold in the cornea. METHODS: To describe the clinical features, management, and outcomes. RESULTS: Successful treatment with topical hydrocortisone was achieved. Subsequently, 3 further episodes of ulcerative keratitis were treated with topical steroid therapy without need for systemic immunosuppression. A systemic vasculitic/autoimmune screen was normal. DISCUSSION: Ocular chrysiasis is well recognized after systemic gold administration and is normally considered inert, but in this case exogenous gold deposition might have been a contributing factor to very localized and repeated episodes of stromal erosion in this man, many years after the original injury. To the best of our knowledge this is the first such reported case.

Persistent conjunctivitis associated with drinking arsenic-contaminated water.

PURPOSE: The aim of this study was to report on 2 cases of bilateral chronic conjunctivitis that were associated with the drinking of arsenic-contaminated underground water for a long time. DESIGN: Interventional case reports comprised the study. METHODS: This study was a review of clinical data and laboratory investigations. RESULTS: Papillary conjunctivitis developed in 2 members of a family who has been drinking underground water for 15 years. There were severe dermatological changes, including hyperkeratosis, on palms and soles, hypo- and hyperpigmented lesions (rain-drop) on the abdomen, chest, and back. Arsenic levels estimated in the nails and hair of both patients were very high. The arsenic level of the drinking water was above the permissible limit. Histopathological examination of conjunctival tissue confirmed the inflammatory response of a papillary type; however, an arsenic estimation in conjunctival tissue was not possible. There were no inclusions of bodies in conjunctival smears stained with hematoxylin and eosin (H&E) stain. There was no response to the usual treatment for papillary conjunctivitis, which only subsided, along with a regression of dermatological changes, when patients were treated with the chelating agent, dimercaprol, and multivitamin preparations, as well as no longer drinking the contaminated water. CONCLUSIONS: This is a rare association and, to the best of our knowledge, the first report of successful treatment with dimercarpol. The source of arsenic was contaminated underground drinking water (from a deep tube-well). The pathophysiology is thought to be the result of an inflammatory response caused by accumulated arsenic in local tissues. Papillary conjunctivitis and dermatological changes can be successfully managed with dimercaprol and multivitamins. Further studies are required to find out the possible link between the papillary response of conjunctiva and arsenic accumulation within the body.