The American encyclopedia and dictionary of ophthalmology Edited by Casey AWood, assisted by a large staff of collaborators . ., m. obliqus inferior.; , fornix eonjunctivaj inferior. 348 ANATOMY (GROSS) OF THE HUMAN EYE In addition to the hair and sebaceous follicles found in dermaltissue everywhere, there are to be seen at the lid-margins the so-called glands of Moll, which are modified sweat-glands. Underneath the conjunctiva, and imbedded in perpendiculargrooves in the substance of the tarsus, are the acinous Meibomianglands, which are identical in structure with the sebaceous glan
The American encyclopedia and dictionary of ophthalmology Edited by Casey AWood, assisted by a large staff of collaborators . ., m. obliqus inferior.; , fornix eonjunctivaj inferior. 348 ANATOMY (GROSS) OF THE HUMAN EYE In addition to the hair and sebaceous follicles found in dermaltissue everywhere, there are to be seen at the lid-margins the so-called glands of Moll, which are modified sweat-glands. Underneath the conjunctiva, and imbedded in perpendiculargrooves in the substance of the tarsus, are the acinous Meibomianglands, which are identical in structure with the sebaceous these glands there are, in the upper lid, some thirty or forty,placed parallel to one another; in the lower lid there are abouttwenty-five. The longest glands are in the center of the upperlid; they become gradually shorter as they approach the ends ofthe tarsus. These tubules open on the intermarginal space, andsecrete the fatty substance that lubricates the lid-margins. They arewell developed in infants, hence the large amount of yellow secre-tion in their eyes. By everting the lids, particularly the lower, they. The Lachrymal Gland and its , superior portion of gland; b, inferior portion; d, lachrymal ducts; e, uppereyelid, skin partially removed; p, p, puncta; c, c, canaliculi; s, lachrymal sac;n, nasal duct. can be seen through the conjunctiva as faint parallel streaks be-ginning at the lid-margin and running at right angles to it. The tarsus, or tarsal cartilage (improperly so-called, since it ex-hibits no cartilage cells), is a thin, fibrous, connective-tissue plate;of these there are two: that in the upper lid is quite large, while thatin the lower lid is considerably smaller. Two margins of the tarsalcartilage are designated, viz.: an upper, or convex, margin, and alower, or free, margin; there are also two surfaces, an anterior anda posterior. These plates are highest at the center and taper off to-ward the ends. The tarsus gives form to the upper lid
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectophthalmology, bookye
