| 21. | Many spotted animals are not registered because they lack a visible white sclera or striped hooves.
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| 22. | Among other variances, the northern skink is smaller and has darker eyes with a black sclera.
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| 23. | These differed from the eyes of most trilobites in having comparatively few lenses spaced between deep sclera.
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| 24. | Follicles may also appear at the junction of the cornea and the sclera ( limbal follicles ).
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| 25. | An early, technical cause of failure may be an excessively tight stitch cheesewiring through the sclera.
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| 26. | This calculation needs to detect the boundary of iris and the white sclera ( limbus tracking ).
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| 27. | They then pierce the sclera, travel between sclera and choroid to reach the iris dilator muscle.
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| 28. | They then pierce the sclera, travel between sclera and choroid to reach the iris dilator muscle.
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| 29. | :There's a huge amount that's just how much sclera one can see.
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| 30. | More recent research has explored using vein patterns in both the iris and the sclera for recognition.
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