| Title |
Accuracy of optical coherence tomography (OCT) in pachymetry for glaucoma patients
|
|---|---|
| Published in |
BMC Ophthalmology, September 2015
|
| DOI | 10.1186/s12886-015-0116-x |
| Pubmed ID | |
| Authors |
Marcelo Ayala, Robert Strandås |
| Abstract |
Central corneal thickness (CCT) measurement has become an important test in the diagnosis and management of glaucoma. Currently, ultrasound corneal thickness measurement (pachymetry) is the most frequently used clinical technique and the gold standard to assess CCT. Newer instruments are currently available including the optical coherence tomography (OCT) instrument. The aim of the present study was therefore to evaluate the accuracy of the CCT measurements performed by three different observers, both with the OCT and ultrasound pachymetry (USP), in patients suffering from glaucoma. Patients who had been previously diagnosed with glaucoma participated in this cross-sectional study. Glaucoma was defined as patients who had at least two repeatable Humphrey visual fields showing glaucoma damage using the software 24-2, and with the optic nerve showing typical glaucoma damage. The patients CCTs were measured with OCT and USP by three different examiners. Seventy eyes of 35 patients were included. The average age was 74 ± standard deviation (SD) 10.88, the average pachymetry value with OCT was 536 ± 29 μm, and the average pachymetry with USP was 532 ± 32 μm. The differences between OCT and USP were not significant (t-test, p = 0.32). The intraclass correlation coefficients were, for OCT, 0.99 [confidence interval (CI): 0.98-0.996], and for USP, 0.97 (CI: 0.95-0.98). Agreement among the three observers using OCT or USP for pachymetry measurements was good. OCT might be used as an alternative method for pachymetry in glaucoma patients. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 33 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 8 | 24% |
| Student > Master | 4 | 12% |
| Researcher | 3 | 9% |
| Student > Ph. D. Student | 2 | 6% |
| Student > Doctoral Student | 1 | 3% |
| Other | 2 | 6% |
| Unknown | 13 | 39% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 13 | 39% |
| Nursing and Health Professions | 2 | 6% |
| Agricultural and Biological Sciences | 2 | 6% |
| Engineering | 2 | 6% |
| Immunology and Microbiology | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 12 | 36% |
Attention Score in Context
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#20,292,660
of 22,829,083 outputs
Outputs from BMC Ophthalmology
#2,084
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#230,174
of 274,379 outputs
Outputs of similar age from BMC Ophthalmology
#24
of 34 outputs
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