How long does it take to read Optometric Instrumentation?
David B. Henson
Optometric Instrumentation by David B. Henson takes about 4 hours 34 minutes to read at 250 words a minute.
About 4 hours 34 minutes
A weekend read
First published 1983. 249 pages, about 68,475 words.
10 days at 30 minutes a day
Estimate based on 275 words per page.
At other speeds
| Slow, 150 words a minute | 7 hours 37 minutes |
| Average, 250 words a minute | 4 hours 34 minutes |
| Fast, 400 words a minute | 2 hours 51 minutes |
The page count is the median across 6 editions, so your copy may differ. How we calculate.
Subjects: Instrumentation, Optometry, Instruments, Testing, Eye, Instruments and apparatus for, Ophthalmology
