Evaluation of two portable pupillometers to assess clinical utility
Background: Pupillometers have been proposed as clinical assessment tools. We compared two pupillometers to assess measurement agreement. Materials & methods: We enrolled 30 subjects and simultaneously measured the pupil diameter and light reflex amplitude with an iPhone pupillometer and a porta...
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| Format: | Article |
| Language: | English |
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Aldus Press
2020-12-01
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| Series: | Concussion |
| Subjects: | |
| Online Access: | https://www.futuremedicine.com/doi/10.2217/cnc-2020-0016 |
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| author | Rachel Eshima McKay Michael A Kohn Elliot S Schwartz Merlin D Larson |
| author_facet | Rachel Eshima McKay Michael A Kohn Elliot S Schwartz Merlin D Larson |
| author_sort | Rachel Eshima McKay |
| collection | DOAJ |
| description | Background: Pupillometers have been proposed as clinical assessment tools. We compared two pupillometers to assess measurement agreement. Materials & methods: We enrolled 30 subjects and simultaneously measured the pupil diameter and light reflex amplitude with an iPhone pupillometer and a portable infrared pupillometer. We then enrolled 40 additional subjects and made serial measurements with each device. Results: Failure occurred in 30% of attempts made with the iPhone pupillometer compared with 4% of attempts made with the infrared pupillometer (Fisher’s exact p = 0.0001). Method comparison of the two devices used simultaneously showed significant disagreement in dynamic measurements. Conclusion: The iPhone pupillometer had poor repeatability and suggests that it is not a practical tool to support clinical decisions. |
| format | Article |
| id | doaj-art-dd486bdf4c0a433fb94fb57cef0c2a6f |
| institution | OA Journals |
| issn | 2056-3299 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Aldus Press |
| record_format | Article |
| series | Concussion |
| spelling | doaj-art-dd486bdf4c0a433fb94fb57cef0c2a6f2025-08-20T02:04:20ZengAldus PressConcussion2056-32992020-12-015410.2217/cnc-2020-0016Evaluation of two portable pupillometers to assess clinical utilityRachel Eshima McKay0Michael A Kohn1Elliot S Schwartz2Merlin D Larson31Department of Anesthesia & Perioperative Care, Professor, University of California San Francisco, CA 94143, USA2Department of Epidemiology & Biostatistics, Professor, University of California San Francisco, CA 94143, USA3Department of Anesthesia & Perioperative Care, Resident in Anesthesia, University of California San Francisco, CA 94143, USA4Department of Anesthesia & Perioperative Care, Professor Emeritus, University of California San Francisco, CA 94143, USABackground: Pupillometers have been proposed as clinical assessment tools. We compared two pupillometers to assess measurement agreement. Materials & methods: We enrolled 30 subjects and simultaneously measured the pupil diameter and light reflex amplitude with an iPhone pupillometer and a portable infrared pupillometer. We then enrolled 40 additional subjects and made serial measurements with each device. Results: Failure occurred in 30% of attempts made with the iPhone pupillometer compared with 4% of attempts made with the infrared pupillometer (Fisher’s exact p = 0.0001). Method comparison of the two devices used simultaneously showed significant disagreement in dynamic measurements. Conclusion: The iPhone pupillometer had poor repeatability and suggests that it is not a practical tool to support clinical decisions.https://www.futuremedicine.com/doi/10.2217/cnc-2020-0016concussioneyepupilpupillary light reflexpupillometry |
| spellingShingle | Rachel Eshima McKay Michael A Kohn Elliot S Schwartz Merlin D Larson Evaluation of two portable pupillometers to assess clinical utility Concussion concussion eye pupil pupillary light reflex pupillometry |
| title | Evaluation of two portable pupillometers to assess clinical utility |
| title_full | Evaluation of two portable pupillometers to assess clinical utility |
| title_fullStr | Evaluation of two portable pupillometers to assess clinical utility |
| title_full_unstemmed | Evaluation of two portable pupillometers to assess clinical utility |
| title_short | Evaluation of two portable pupillometers to assess clinical utility |
| title_sort | evaluation of two portable pupillometers to assess clinical utility |
| topic | concussion eye pupil pupillary light reflex pupillometry |
| url | https://www.futuremedicine.com/doi/10.2217/cnc-2020-0016 |
| work_keys_str_mv | AT racheleshimamckay evaluationoftwoportablepupillometerstoassessclinicalutility AT michaelakohn evaluationoftwoportablepupillometerstoassessclinicalutility AT elliotsschwartz evaluationoftwoportablepupillometerstoassessclinicalutility AT merlindlarson evaluationoftwoportablepupillometerstoassessclinicalutility |