Table 2. Parameters of our schematic model eye.

no	notation	Radius r(mm)	Thickness d(mm)	Index (n)	Q value
1	Cornea	7.72	0.55	1.376	−0.26
2	Anterior chamber	6.5	3.05	1.3374	0
3	Crystalline lens	10.2	4.0	1.420	−3.1316
4	Vitreous humor	−6	16.3203	1.336	−1
5	Image	−12