Assessment of lacrimal resistance using a manometric tear duct irrigation system.

Lacrimal surgery aims to provide a low-resistance tear drainage passage. An assessment of lacrimal resistance guides decisions on surgery. We present results of a modified tear duct irrigation system that reliably measures lacrimal outflow resistance.

Combined hamartoma of the retina and retinal pigment epithelium.

We report two cases of combined hamatoma of the retina and retinal pigment epithelium (CHR-RPE), illustrated with ultrasonography, optical coherence tomography, fundus fluorescein angiography and indocyanine green angiography images. CHR-RPE could clinically mimic several other retinal conditions. Failure to distinguish it from serious malignancies such as choroidal melanoma or retinoblastoma has led to unnecessary enucleation in the past.