Eye viewing device for retinal viewing through undilated pupil

An imaging system for an eye viewing device for viewing a patient's eye, wherein a cornea of said eye defines a first optical surface of said imaging system, said imaging system comprising:

• an objective lens having second and third surfaces;
• an aperture stop having fourth and fifth surface;
• a linear polarizer having a sixth surface;
• a two-piece imaging lens having seventh, eight, ninth and tenth surfaces
• a stop aperture having an eleventh surface;
• and
• a two-piece eyepiece lens having twelfth, thirteenth, fourteenth, and fifteenth surfaces, wherein said above elements have or are scalable to about the following numerical data:
• Radius Thickness Aperture Radius Material r1 = ∞ d1 = 26.5 Air r2 = 8.509485 d2 = 9.500000 Acrylic r3 = 46.500000 d3 = 49.040000 Air r4 = ∞ Ar4 = 1.6000 d4 = 0.130000 Aperture Stop r5 = ∞ d5 = 0.280000 Polarizer r6 = ∞ d6 = 0.550000 Air r7 = 8.754023 d7 = 6.350000 Acrylic r8 = −3.919968 d8 = 0.450000 Air r9 = −4.389902 d9 = 3.000000 Styrene r10 = −69.717470 d10 = 20.879000 Air r11 = 6.6400 d11 = 6.6400 Air r12 = −90.422 d12 = 5.000000 699301 r13 = −16.490875 d13 = 2.00000 Air r14 = 19.000000 d14 = 5.000000 517642 r15 = −19.000000 d15 = 12.500000 Air
• where r2 to r15 are radii of curvatures of the above surfaces, where d1 to d15 are distances between the surfaces where Ar4 is the radius of the aperture of said aperture stop, and wherein said second, seventh, eighth, and ninth surfaces are aspheric surfaces defined by:
• sur- face Cc ad ae af ag S2 −2.427960 0.000246 −5.3906e-07 −5.1989e-09 2.8038e-11 S7 −2.799230 1.9656e- 4.5561e-06 −3.9069e-06 −1.7903e-08 05 S8 −1.816998 5.9368e- −3.6825e-05 −5.7481e-06 7.1492e-07 06 S9 −2.113129 −0.000142 −3.3190e-05 −9.9715e-06 2.8898e-06
• where cc, ad, ae, af and ag are higher order aspheric coefficients.

A retinal viewing ophthalmoscope for viewing a retina through a pupil, said ophthalmoscope comprising:

• a housing;
• an illumination system integrated in said housing generating a converging cone of light that converges at an apex and diverges thereafter;
• an imaging system integrated in said housing having an imaging axis;
• and
• an aperture stop sized to correspond to said pupil disposed in said device substantially coaxial with said imaging axis and substantially conjugate to said apex whereby corneal glare is reduced.