Eye and Brain (Aug 2021)

Sensitivity and Specificity of New Visual Field Screening Software for Diagnosing Hemianopia

  • Jariyakosol S,
  • Jaru-ampornpan P,
  • Manassakorn A,
  • Itthipanichpong R,
  • Hirunwiwatkul P,
  • Tantisevi V,
  • Somkijrungroj T,
  • Rojanapongpun P

Journal volume & issue
Vol. Volume 13
pp. 231 – 238

Abstract

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Supharat Jariyakosol,1,2,* Patcharaporn Jaru-ampornpan,1,2,* Anita Manassakorn,1,2 Rath Itthipanichpong,1,2 Parima Hirunwiwatkul,1,2 Visanee Tantisevi,1,2 Thanapong Somkijrungroj,1,2 Prin Rojanapongpun1,2 1Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; 2Ophthalmology Department, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand*These authors contributed equally to this workCorrespondence: Supharat Jariyakosol Email [email protected]: To assess the diagnostic accuracy of visual field results generated by the newly developed software (CU-VF) and the standard automated perimetry (SAP) for detecting hemianopia.Patients and Methods: Forty-three subjects with hemianopia and 33 controls were tested with the CU-VF software on a personal computer and SAP. Hemianopia was defined as the presence of a hemianopic field respecting the vertical meridian on SAP with the corresponding neuroimaging pathology as evaluated by 2 neuro-ophthalmologists. Results of CU-VF were independently evaluated by 2 neuro-ophthalmologists, 1 general ophthalmologist, and 1 general practitioner in terms of the presence of hemianopia. Sensitivity, specificity, and kappa coefficient for inter-observer reliability were calculated. Satisfaction and ease of use were evaluated with a visual analog-scale questionnaire and analyzed using paired t-test.Results: The sensitivity (95% CI) and specificity (95% CI) of the CU-VF to detect hemianopia was 74.42% (58.53– 85.96) and 93.94% (78.38– 99.94). Kappa coefficient between neuro-ophthalmologists versus general ophthalmologist and general practitioner were 0.71 and 0.84, respectively. The mean (SD) test duration was 2.25 (0.002) minutes for the CU-VF and 5.38 (1.34) minutes for SAP (p < 0.001). Subjects reported significantly higher satisfaction and comfort using the CU-VF software compared to SAP.Conclusion: The CU-VF screening software showed good validity and reliability to detect hemianopia, with shorter test duration and higher subject satisfaction compared to SAP.Keywords: hemianopia, visual field, screening software

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