Use of Staurenghi lens angiography in the management of posterior uveitis.

PURPOSE: Retinal vasculitis is an important component of posterior uveitis. It may be difficult to detect either clinically or with conventional angiography. We assessed the role of Staurenghi lens angiography (SLA) in the diagnosis and management of patients with posterior uveitis. METHODS: A total of 26 patients attending the St Paul's Eye Unit uveitis clinic with posterior uveitis underwent wide-angle (150 degree) retinal angiography with the Heidelberg Retina Angiograph 2 Scanning Laser Ophthalmoscope using the Staurenghi SLO 230 contact lens. We determined the percentage of patients in whom this imaging modality assisted in diagnosing and quantifying the extent of vasculitis, planning treatment or monitoring disease activity. RESULTS: Staurenghi lens angiography assisted in diagnosing and quantifying the extent of vasculitis in 62% of patients, and in planning laser photocoagulation or immunosuppression titration in 62% of patients and enhanced disease monitoring in 35% of patients. In 31% of cases, SLA revealed vasculitis that was not evident clinically. CONCLUSION: Staurenghi lens angiography is a valuable tool in the management of patients with posterior uveitis and can be used for the diagnosis, treatment and follow-up of these patients.

Prospective study of surgical outcomes and bleb morphology using indocyanine green as a surgical dye in trabeculectomy with mitomycin C.

BACKGROUND: To investigate the effect of adding indocyanine green to mitomycin C in augmented trabeculectomy. DESIGN: A prospective, non-comparative interventional case series. PARTICIPANTS: A total of 37 eyes of 37 patients followed up for 1 year. METHODS: A solution containing 12.5 mg/mL of indocyanine green was added to mitomycin C, resulting in an mitomycin C concentration of 0.2-0.4 mg/mL, which was applied to bare sclera and Tenon's capsule for 3 min during trabeculectomy. MAIN OUTCOME MEASURES: Visual acuity, intraocular pressure, bleb morphology, Moorfields Bleb Grading System scores and complications. RESULTS: Indocyanine green could be visualized on clinical examination for all eyes on the first postoperative day. Mean intraocular pressure decreased from 22.9 ± 6.2 mmHg to 12.1 ± 4.4 mmHg postoperatively (P < 0.001) at 1 year. Thirty-four eyes (91.9%) achieved an intraocular pressure of less than 21 mmHg at final visit without additional topical intraocular pressure-lowering medications. Three eyes (8.1%) developed bleb failure and required Baerveldt device implantation. There were no cases of blebitis or late bleb leak. No adverse effects attributable to indocyanine green could be identified postoperatively. CONCLUSION: The addition of indocyanine green during trabeculectomy improves the visibility of antimetabolites intraoperatively and allows for the estimation of antimetabolite treatment area intraoperatively and postoperatively. It appears to have no adverse effect on surgical outcomes and complication rates, while improving safety of antimetabolite use.

Ocular and oral grading of mucous membrane pemphigoid.

BACKGROUND: A variety of methods have been described for grading ocular mucous membrane pemphigoid (MMP), each with their own limitations. In contrast, there are no reported grading systems for involvement of the oral mucosa. We wished to evaluate two ocular (one established and one proposed) and an oral mucosal grading system for MMP. METHODS: Patients with MMP were assessed by three ophthalmologists and two oral medicine physicians. Ocular disease was graded using the system described by Rowsey and a proposed system based on measurement of vertical depth and horizontal width measured from the bulbar conjunctival aspect. Oral assessment used a 'mucosal disease severity score' originally described for lichen planus, in which 17 areas of the mouth are scored for involvement, together with a pain score. Levels of agreement were evaluated using Fleiss' Kappa Statistic (k). RESULTS: Forty-four patients with MMP encompassing mild to severe disease were included. Good levels of agreement were observed between observers for both vertical (k:0.86) (upper 95% CI: 1.03 mm) and horizontal (k:0.80) (upper 95% CI: 3.01 mm) involvement for the proposed ocular system and the Rowsey system (k: 0.83) (upper 95% confidence interval: 3.19 mm). There was a high coefficient of determination (R(2)) between the ocular grading systems (0.81, p < 0.01). Oral grading showed excellent levels of agreement (k: 0.71) between observers. There was no significant association between the severity of oral and ocular disease using described grading systems. CONCLUSIONS: The proposed grading systems for both oral and ocular involvement in MMP are easy to use, and show good agreement between observers. The proposed ocular system correlates well with a currently used system, and overcomes some of the difficulties encountered with existing systems. For the individual patient, changes greater than 1.5 mm (vertical) and 3 mm (horizontal) are significant. This may increase our ability to detect change or disease progression. Although the risk of ocular involvement in patients with only oral involvement has been demonstrated, the severity of oral and ocular disease are not well-correlated, due in part to an absence of an ocular disease activity score.

Corneal confocal microscopy in Darier disease.

PURPOSE: We report ocular findings in a patient with Darier disease. In particular, we discuss the in vivo confocal images. METHOD: A retrospective noninterventional case report. RESULTS: Confocal microscopy revealed collections of intercellular material, separating the cells of the patient's basal corneal epithelium. Discrete foci of this material were scattered throughout the central corneal basal epithelium in both eyes. These deposits had a similar reflectance as corneal nerves, were 3-5-microm thick, and of note in places conformed to the cell borders. CONCLUSIONS: The findings of abnormal intercellular collections at the basal epithelial layer of the cornea correlate with the previously reported histological findings. They are consistent with the abnormal keratocyte-to-keratocyte adhesions that are described both in the skin and cornea of Darier disease. The abnormalities we describe occurred in the absence of other ocular signs of Darier disease. These findings on confocal microscopy may help with the diagnosis and monitoring of disease progression.

Development of a highly detailed virtual model eye.

Using a three-dimensional modeling computer program, the authors created a three-dimensional, highly detailed computer-generated model of a normal eye to enhance the teaching of basic ophthalmic anatomy. The resulting model is a uniquely detailed virtual eye that can illustrate ocular anatomy clearly but realistically at many levels of magnification. Eye anatomy can be demonstrated from any viewpoint, with a choice of which structures are visible. The generation of video animations is also possible. The potential of this model for illustration of ocular disease will be the objective of further testing with medical students.