. A treatise on diseases of the eye . Nerves of tlie Oibit and Ophthalmic Ganglion, side view. (Gray.) EYELIDS 43 Fig. 19 narily wide open, from 8 to 14 mm; it frequently Varies in width in thetwo eyes. Temporally the lids approach each other at a sharp angle,forming the external canthus. When the lids are separated, a delicate,thin membrane stretches acrossthis angle, forming the externalcommissure. At the inner angle ofthe lids, internal canthus, the pal-pebral fissure is horseshoe in shape,the ends of the shoe correspondingto the puncta lachrymalia. Puncta Lachrymalia.—The punctalachrymalia
. A treatise on diseases of the eye . Nerves of tlie Oibit and Ophthalmic Ganglion, side view. (Gray.) EYELIDS 43 Fig. 19 narily wide open, from 8 to 14 mm; it frequently Varies in width in thetwo eyes. Temporally the lids approach each other at a sharp angle,forming the external canthus. When the lids are separated, a delicate,thin membrane stretches acrossthis angle, forming the externalcommissure. At the inner angle ofthe lids, internal canthus, the pal-pebral fissure is horseshoe in shape,the ends of the shoe correspondingto the puncta lachrymalia. Puncta Lachrymalia.—The punctalachrymalia are situated about fivemillimeters from the mesial endof the palpebral fissure. The areaincluded between a line uniting thepuncta, and the mesial end of thepalpebral fissure is termed the tearlake (lacus lachrymalis). It con-tains a fleshy mass, the caruncle. Integument.—The integument ofthe eyelids is very thin. It is looselyattached to the deeper structuresby areolar connective tissue, which Fig. 18.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteyediseases, bookyear
