The student's guide to diseases of the eye . heir perforating branches, supply thesclerotic, iris, and ciliary body, and receive bloodfrom Schlemms canal and the ciliary body, the per-forating branches of the arteries (Fig. 21 a) are seenin health as several comparatively large tortuousvessels which stop short about Ty or | from thecorneal margin (Fig. 23) ; their episcleral non-per-forating branches are invisible in health, but sonumerous as to form, when distended, a pink zoneof fine, nearly straight, very closely-set vessels roundthe cornea (Fig. 21a and Fig. 24) (ciliary conges-tion/ circu
The student's guide to diseases of the eye . heir perforating branches, supply thesclerotic, iris, and ciliary body, and receive bloodfrom Schlemms canal and the ciliary body, the per-forating branches of the arteries (Fig. 21 a) are seenin health as several comparatively large tortuousvessels which stop short about Ty or | from thecorneal margin (Fig. 23) ; their episcleral non-per-forating branches are invisible in health, but sonumerous as to form, when distended, a pink zoneof fine, nearly straight, very closely-set vessels roundthe cornea (Fig. 21a and Fig. 24) (ciliary conges-tion/ circum-corneal zone, see Iritis and Diseasesof Cornea) ; the perforating veins are very small, butmore numerous than the perforating arteries (), and their episcleral twigs form a closely-meshed EXTERNAL EXAMINATION OF THE EYE 25 network (Fig. 25). (3) The vessels proper to themargin of the cornea and immediately adjacent zoneof conj unctiva (anterior conjunctival vessels, and theirloop plexus on the corneal border, Fig. 211 and Fig. 48);. lens cm:
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Keywords: ., bookcentury1800, booksu, booksubjecteye, booksubjectophthalmology
