Transactions . om the patients left uppercanaliculus. Clinically there was a swelling of the lidin the neighbourhood of the canaliculus, and through thedilated punctum a smooth flattened knob of tissue waspresenting. The canaliculus was slit for a few millimetres,and with a small spoon the tumour was lifted out com-plete without traction or further cutting. The tumour was of a sinuous pear-shape, the long axismeasuring 10 mm., the short axis 45 mm. When inposition the pointed end was directed towards the lacry-mal sac, and the ovoid end showed a flat-topped knobwhich had protruded through the
Transactions . om the patients left uppercanaliculus. Clinically there was a swelling of the lidin the neighbourhood of the canaliculus, and through thedilated punctum a smooth flattened knob of tissue waspresenting. The canaliculus was slit for a few millimetres,and with a small spoon the tumour was lifted out com-plete without traction or further cutting. The tumour was of a sinuous pear-shape, the long axismeasuring 10 mm., the short axis 45 mm. When inposition the pointed end was directed towards the lacry-mal sac, and the ovoid end showed a flat-topped knobwhich had protruded through the punctum. The surface 244 DISEASES OP THE LACRYMAL APPARATUS. of the tumour showed numerous furrows. There was noapparent pedicle. Microscopically the structure is that of a epithelium is stratified, and consists of fifteen tothirty layers of cells. The stroma is made up of a sparsenetwork of connective tissue containing capillaries. Hereand there in the stroma leucocytes are numerous, but Fig. Papilloma from canaliculus. Length, 10 mm. x 4. sections were stained by Grams method for micro-organismswith a negative result. 245 VI. DISEASES OF THE CORNEA. 1. Remarks on dystrophies of the cornea and glaucoma,With especiul reference to a familial variety of thefortner. By J. Gray Clegg. The paper I am now about to read was suggested bythe two cases I showed yesterday. When a patient of middle age complains of seeingcoloured rings round artificial lights, the first idea thatoccurs is whether glaucoma is present, but the spectralcolours are produced whenever the anterior refractivesurface of the cornea is fogged by conjunctival secretionlying on it, or by changes in the anterior epithelium or,including sometimes, the superficial substantia propriaitself. No particular difficulty arises in differentiating-between conjunctival secretion and corneal haze, but inmy experience complaint is often made of halos withoutthere being any corneal haze sufficiently marked to bevi
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