Inter-Observer Reproducibility of Axial Ocular Measurements with Non-contact HAAG-STRAIT Biometer

Doi: 10.36351/pjo.v37i3.1239

  • Muhammad Suhail Sarwar Department of Ophthalmology, Mayo Hospital, Lahore
  • Sehrish Shahid Department of Ophthalmology, Mayo Hospital, Lahore
  • Muhammad Arslan Ashraf Department of Ophthalmology, Mayo Hospital, Lahore
  • Shaista Kanwal Department of Ophthalmology, Mayo Hospital, Lahore
Keywords: Biometry, Axial Length, Central Corneal Thickness, Anterior Chamber Depth.

Abstract

Purpose:  To check inter observer reproducibility of axial ocular measurements i.e. central corneal thickness (CCT), anterior chamber depth (ACD), aqueous depth (AD), lens thickness (LT), anterior segment lens (ASL), vitreous length (VL) and axial length (AL) with non-contact HAAG-STRAIT biometer.

Study Design:  Comparative Reproducibility Analysis.

Place and Duration of Study:  College of ophthalmology and allied vision sciences (COAVS), Mayo Hospital, Lahore.

Methods:  This study included 66 healthy students (132 eyes). Data was collected through self-designed proforma by 2 operators independently. SPSS 21 was used for data analysis. Interclass correlation was applied for agreement between the two readings. Interclass coefficient (ICC) value greater than 0.7 was considered as excellent correlation.

Results:  The mean CCT, AD, ACD, LT, ASL, VL, and AL were 526.47 ± 35.72 µm and 526.47 ± 36.06 µm
(ICC = 0.92); 2.93 ± 0.29 mm and 2.93 ± 0.29 mm (ICC = 0.81); 3.45 ± 0.30 mm and 3.46 ± 0.30 mm (ICC = 0.79); 3.58 ± 0.28 mm and 3.56 ± 0.22 mm (ICC = 0.76); 7.03 ± 0.30 mm and 7.02 ± 0.27 mm (ICC = 0.80); 16.56 ± 0.85 mm and 16.62 ± 0.81 mm (ICC = 0.72); and 23.59 ± 0.85 mm and 23.64 ± 0.87 mm (ICC: 0.76) of observer 1 and 2, respectively.

Conclusion:  Non-contact Biometer (HAAG-STRAIT) has high inter-observer reproducibility with strong interclass coefficient of greater than 0.72.

Key Words:  Biometry, Axial Length, Central Corneal Thickness, Anterior Chamber Depth.

Author Biographies

Muhammad Suhail Sarwar, Department of Ophthalmology, Mayo Hospital, Lahore

MS Ophthalmology 

Head of Diagnostic Ophthalmology Department, Mayo Hospital Lahore

Sehrish Shahid, Department of Ophthalmology, Mayo Hospital, Lahore

BS (Hons) Investigative Ophthalmology

Muhammad Arslan Ashraf, Department of Ophthalmology, Mayo Hospital, Lahore

MPhil Investigative Ophthalmology

Shaista Kanwal, Department of Ophthalmology, Mayo Hospital, Lahore

BS(Hons) Investigative Ophthalmology

Published
2021-05-10
How to Cite
1.
Sarwar M, Shahid S, Ashraf M, Kanwal S. Inter-Observer Reproducibility of Axial Ocular Measurements with Non-contact HAAG-STRAIT Biometer. pjo [Internet]. 10May2021 [cited 30Jul.2021];37(3). Available from: https://pjo.org.pk/index.php/pjo/article/view/1239
Section
Original Articles