Page 12 
Under SCIENTIFIC NOTATION: I have switched the movement of the decimal point to the left and the right. The 10 x ^6 should say "Move the decimal point . . . to the right" and the 10x^6 should say "Move the decimal point . . . to the left". 
Page 86 
Calculator box,
TYPE B calculator, has one too many (
keys. The third and fourth keys, where there are two open
parenthesis
together, should have one removed. 
Page 119 
middle of page, in
the column under "OS" 3.6^ BU should be 3.6^ BD 4.0^ BU should be 4.0^ BD 
Page 131 
This diagram was
supposed to be the B&W version of
the chart on the inside back cover. Without it the last
sentence makes
no sense. 
Page 215 
ANSI standards for 2005 are now official. 
Page 14 
Example 140: 3rd
and 4th lines are = 0.974217 x 10 (to the 1st power) = 9.742 
Page 34  Example 226 = 3.09 + 26.32 + 1.31 = 30.72 = 31 mm 
Page 37 
Example 228 answer
is =58.76
= 59 
Page 55 
Example 311, 3.
second line: The sphere power of 1.50 and the axis
of 45 . . . Example 311, 4. second line: from the axis of the prescription: 1.50 + (+1.00) =  0.50. 
Page 58 
Example 315,
3. Cylinder amount: 0.25
 (+0.50) = 0.75 Example 316, 3. Cylinder amount: 0  (+1.75) = 1.75 
Page 70  Last paragraph: ".... which can be transposed to 2.00 +2.00 x180. The major ....." 
Page 129  Diagram should be
in third quadrant, not fourth. 1st line under diagram: "OS BD&I is in the third quadrant." Last line before Note: "The answer is 5.8 prism BD&I @ 31 or 5.8 prism @ 211 
Page 227  Sagittal Depth formula, under the radical there should be a squared sign for [d/2] inside the parenthesis. 
Page 217 
inside the box at
the bottom of the page:

Page 220  Box for Mounted PAL prism imbalance section Horizontal prism PRPs less than or equal to 1.0 mm from specified monocular interpupillary distance Reference for Mounted PAL prism is 5.2.1.2 
Page 220  Box for Mounted SV and multifocal prism imbalance section Horizontal prism > +/ 3.37D should be > +/ 2.75D 
Page 189 
Example 72, bottom
of the page:

Page 190 
Example 73, second line under diagram: = 1 _ 1 = 0.0667  0.025 = 0.0917 15 40 
Page 142 
MONOCULAR MEASUREMENTS in INSET box at top of page:

Page 242 
Answer to question 17 is "c" 
Section
1 Math Review 
Page references are to edition 1.


Section 2 Theory of Light 

Page references in
these lessons are to both editions: in parenthesis is ed 1, then ed 2. 
Section 3 Lenses 

Page references in
these lessons are to both editions: in parenthesis is ed 1, then ed 2. 
Section 4 Prism  basic 
Page references in
these lessons are to both editions: in parenthesis is ed 1, then ed 2. 

Section 4
Prism  advanced

Use these links for ed 2 of the Formulas textbook. There are worksheets in the lessons. 

Section 5
Surfacing and Finishing

I have no lessons to post here. If you have some that you are willing for other school's students to use for reference material, please let me know. 

Section 6
Advanced Lens Formulas

Some references are updated, some are not. 

Section 7 Image Formation 
Geometrical Optics: Ray Tracing.

Some references are updated, some are not. 