The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 94
The layers of the cornea Differences between sclera and cornea Ciliary body and iris The pigment epithelium The rods and cones. optically clear aqueous humour , lens , and vitreous body ( Figure 4 ) . The outermost coat consists of the ...
The layers of the cornea Differences between sclera and cornea Ciliary body and iris The pigment epithelium The rods and cones. optically clear aqueous humour , lens , and vitreous body ( Figure 4 ) . The outermost coat consists of the ...
Page 97
... cornea , but the proportion of water is much greater , about 98 percent or more , com- pared with about 75 percent for the cornea . The jelly is probably secreted by certain cells of the retina . In gen- eral , the vitreous body is ...
... cornea , but the proportion of water is much greater , about 98 percent or more , com- pared with about 75 percent for the cornea . The jelly is probably secreted by certain cells of the retina . In gen- eral , the vitreous body is ...
Page 119
... cornea , and it is the corneal scarring thus produced that can cause blindness . Degenerative conditions . Exposure to wind and dust frequently causes degenerative changes in the exposed part of the conjunctiva , particularly in older ...
... cornea , and it is the corneal scarring thus produced that can cause blindness . Degenerative conditions . Exposure to wind and dust frequently causes degenerative changes in the exposed part of the conjunctiva , particularly in older ...
Contents
would become the principal reserve asset while gold | 36 |
Excretion the elimination of the waste products of | 50 |
Volumes | 431 |
Copyright | |
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acid activity amount animals appears become blood body called carried cause cells century changes chemical close common complete consists containing continuous countries depends direction early effect evidence evolution example existence farm federal ferns fibres field Figure fire function gametophyte give groups important increase interest Italy kidney known later leaves less light lines living major marriage material means ment method move movements muscle natural normal obtained occur organs origin percent period person plants position possible present pressure problems produced properties protection reduced remain renal response result retina selection similar social species structure supply surface temperature tend tion types United urine usually various vary