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Table 2
Values of ocular parameters (used for focal length calculation) from different rat eye models.
| Parameter | Thickness (mm) | Radius of curvature (mm) | Refractive index | Calculated focal length (this study)* (mm) |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Author | Cornea e1 |
Aqueous chamber e2 |
Crystalline lens e3 |
Anterior cornea R1 |
Posterior cornea R2 |
Anterior lens R3 |
Posterior lens R4 |
Cornea n1 |
Aqueous n2 |
Lens (Homogeneous model) n3 |
Vitreous n4 |
– | |||
| Block (1969) Strain: Pigmented and albino rats |
0.25 | 0.88 | 2.80 | 2.75 | 2.50 | 1.85 | 1.72 | 1.38 | 1.34 | 1.61 | 1.34 | 3.498 | |||
| Massof and Chang (1972) Strain: Hooded rats |
0.25 | 0.87 | 3.87 | 2.78 | 2.53 | 1.11 | 1.42 | 1.374 | 1.344 | 1.433 | 1.347 | 6.660 | |||
| Hughes (1979) Strain: Dark Agouti rats |
0.260 | 0.621 | 3.710 | 2.965 | 2.705 | 2.340 | 2.340 | 1.380 | 1.337 | 1.683 | 1.337 | 5.748 | |||
| Chaudhuri et al. (1983) Strain: Long Evans rats |
0.156 | 0.708 | 3.814 | 3.051 | 2.959 | 2.535 | 2.441 | 1.3838 | 1.3346 | 1.6854 | 1.3349 | 5.726 | |||
*See calculation in Annexe A.
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