Ball-Bearing Keratometry
We obtained steel test balls for keratometer calibration at nominal cost by using a selected set of steel ball bearings, readily available for nonoptical purposes. The set of keratometer tests balls each have an accuracy of greater than one part in 1,000.
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| Veröffentlicht in: | American journal of ophthalmology 1978-05, Vol.85 (5), p.715-715 |
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| Format: | Artikel |
| Sprache: | eng |
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| container_end_page | 715 |
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| container_issue | 5 |
| container_start_page | 715 |
| container_title | American journal of ophthalmology |
| container_volume | 85 |
| creator | Schechter, Robert J. |
| description | We obtained steel test balls for keratometer calibration at nominal cost by using a selected set of steel ball bearings, readily available for nonoptical purposes. The set of keratometer tests balls each have an accuracy of greater than one part in 1,000. |
| doi_str_mv | 10.1016/S0002-9394(14)77111-9 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0002-9394 |
| ispartof | American journal of ophthalmology, 1978-05, Vol.85 (5), p.715-715 |
| issn | 0002-9394 1879-1891 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_74025202 |
| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Cornea - anatomy & histology Humans Methods Refraction, Ocular - instrumentation |
| title | Ball-Bearing Keratometry |
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