- Visual acuity depends upon the clarity of the transparent media at the front of the eye (cornea, anterior chamber fluid and lens), the clarity of the viscous vitreous in the globe, and the distance of the macula from the lens.
- In the normal eye, light rays focus in a point at the macula, the area on the retina which allows the greatest acuity. In nearsightedness, the eyeball is elongated, or the lens is defective and the focal point lies in front of the macula. In farsightedness, the opposite condition exists. Both can be corrected with lenses, and sometimes the newer laser corneal surgery techniques can be used.
30 x 40 = $395 + shipping
36 x 48 = $425 + shipping
Digital = $395