from this point will be parallelwhen they reach the retina. The second principal focus lies14*6 mm. behind the posterior surface of the lens; parallel 144 LIGHT. [CH. VII rays, falling on the cornea, converge after entering the vitreoushumour to this point, which it will be observed is very… … Fig. 107. When an object at some little distance is viewed an invertedimage is formed on the retina. This is shewn in a diagram-matic manner in fig. 107. Thus, in the case of such an eye, an object at a considerabledistance would be focussed as a sharp inverted image on theretina, and the…
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