Text-book of ophthalmology . ich nevertheless allows the yellowcolor of the underlying fat to showthrough. skin with glands, since the amniotic bands are sim-ple connective tissue. It is henoe more probable that the amnion contributes to thedevelopment of dermoids only to this extent, that when there is a smaller amount ofamniotic fluid, the amnion is in closer contact with the eye and may press the lid againstthe surface of the eyeball. The same thing might be done by amniotic bands. As aresult of the pressure there might develop a circumscribed adhesion between the lidand the eyeball, which
Text-book of ophthalmology . ich nevertheless allows the yellowcolor of the underlying fat to showthrough. skin with glands, since the amniotic bands are sim-ple connective tissue. It is henoe more probable that the amnion contributes to thedevelopment of dermoids only to this extent, that when there is a smaller amount ofamniotic fluid, the amnion is in closer contact with the eye and may press the lid againstthe surface of the eyeball. The same thing might be done by amniotic bands. As aresult of the pressure there might develop a circumscribed adhesion between the lidand the eyeball, which afterward becomes detached but not without rudimentary por-tions of skin tissue being left on the surface of the eyeball, which rudimentary portionsafterwards develop into a dermoid. Lipoma subconjunctival forms a tumor, situated upon the upper and outer circum-ference of the eyeball, between the rectus externus and rectus superior muscle, andappearing of a yellowish color as seen through the conjunctiva. It is of triangular. DISEASES OF THE CONJUNCTIVA 225 form, the sharply defined base of the triangle looking toward the cornea, while the twosides of the triangle, which are directed outward pass gradually into the orbital the tumor is small it ordinarily remains concealed beneath the outer canthus, and canbe brought into view only by turning the eye strongly inward (Fig. 64). Larger lipo-mata are visible in the palpebral fissure even when the gaze is directed straight forward,and hence cause disfigurement; but they do no other harm. Microscopical examinationshows that the tumor consists of fat lobules. The conjunctiva that coats it is thickenedand of a character resembling skin, and in this regard a lipoma is akin to the dermoids(lipo-dermoid). Like the latter, it is congenital, but sometimes grows to a considerablesize at the time of puberty. If it is desired to remove the tumor on account of thedisfigurement it produces, we divide the thickened conjunctiva as far as m
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteye, booksubjectophth
