PMID- 26899899
OWN - NLM
STAT- MEDLINE
DCOM- 20170322
LR  - 20220331
IS  - 1435-702X (Electronic)
IS  - 0721-832X (Linking)
VI  - 254
IP  - 5
DP  - 2016 May
TI  - Development and testing of an automated computer tablet-based method for 
      self-testing of high and low contrast near visual acuity in ophthalmic patients.
PG  - 891-9
LID - 10.1007/s00417-016-3293-2 [doi]
AB  - PURPOSE: Many eye diseases require on-going assessment for optimal management, 
      creating an ever-increasing burden on patients and hospitals that could 
      potentially be reduced through home vision monitoring. However, there is limited 
      evidence for the utility of current applications and devices for this. To address 
      this, we present a new automated, computer tablet-based method for self-testing 
      near visual acuity (VA) for both high and low contrast targets. We report on its 
      reliability and agreement with gold standard measures. METHODS: The Mobile 
      Assessment of Vision by intERactIve Computer (MAVERIC) system consists of a 
      calibrated computer tablet housed in a bespoke viewing chamber. Purpose-built 
      software automatically elicits touch-screen responses from subjects to measure 
      their near VA for either low or high contrast acuity. Near high contrast acuity 
      was measured using both the MAVERIC system and a near Landolt C chart in one eye 
      for 81 patients and low contrast acuity using the MAVERIC system and a 25 % 
      contrast near EDTRS chart in one eye of a separate 95 patients. The MAVERIC near 
      acuity was also retested after 20 min to evaluate repeatability. RESULTS: 
      Repeatability of both high and low contrast MAVERIC acuity measures, and their 
      agreement with the chart tests, was assessed using the Bland-Altman comparison 
      method. One hundred and seventy-three patients (96 %) completed the self- testing 
      MAVERIC system without formal assistance. The resulting MAVERIC vision 
      demonstrated good repeatability and good agreement with the gold-standard near 
      chart measures. CONCLUSIONS: This study demonstrates the potential utility of the 
      MAVERIC system for patients with ophthalmic disease to self-test their high and 
      low contrast VA. The technique has a high degree of reliability and agreement 
      with gold standard chart based measurements.
FAU - Aslam, Tariq M
AU  - Aslam TM
AD  - Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.
AD  - Vision Science Centre, Hospitals NHS Foundation Trust, Manchester Academic Health 
      Science Centre, Manchester Royal Eye Hospital, Central Manchester University, 
      Manchester, UK.
AD  - Heriot-Watt University, Edinburgh, UK.
FAU - Parry, Neil R A
AU  - Parry NR
AD  - Vision Science Centre, Hospitals NHS Foundation Trust, Manchester Academic Health 
      Science Centre, Manchester Royal Eye Hospital, Central Manchester University, 
      Manchester, UK.
AD  - Centre for Hearing and Vision Research, Institute of Human Development, 
      University of Manchester, Manchester, UK.
FAU - Murray, Ian J
AU  - Murray IJ
AD  - Vision Science Centre, Hospitals NHS Foundation Trust, Manchester Academic Health 
      Science Centre, Manchester Royal Eye Hospital, Central Manchester University, 
      Manchester, UK.
AD  - Faculty of Life Sciences, University of Manchester, Room 3.005, Carys Bannister 
      Building, Dover Street, Manchester, M13 9PL, UK.
FAU - Salleh, Mahani
AU  - Salleh M
AD  - Centre for Hearing and Vision Research, Institute of Human Development, 
      University of Manchester, Manchester, UK.
FAU - Col, Caterina Dal
AU  - Col CD
AD  - Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.
FAU - Mirza, Naznin
AU  - Mirza N
AD  - Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.
FAU - Czanner, Gabriela
AU  - Czanner G
AD  - Department of Biostatistics, Faculty of Health and Life Sciences, Department of 
      Eye and Vision Science, University of Liverpool, Liverpool, UK.
FAU - Tahir, Humza J
AU  - Tahir HJ
AD  - Faculty of Life Sciences, University of Manchester, Room 3.005, Carys Bannister 
      Building, Dover Street, Manchester, M13 9PL, UK. humza.tahir@manchester.ac.uk.
LA  - eng
PT  - Journal Article
DEP - 20160222
PL  - Germany
TA  - Graefes Arch Clin Exp Ophthalmol
JT  - Graefe's archive for clinical and experimental ophthalmology = Albrecht von 
      Graefes Archiv fur klinische und experimentelle Ophthalmologie
JID - 8205248
SB  - IM
MH  - Algorithms
MH  - *Computers, Handheld
MH  - Contrast Sensitivity/*physiology
MH  - Diagnosis, Computer-Assisted/*instrumentation
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Reproducibility of Results
MH  - Self Care/*methods
MH  - Software
MH  - Vision Disorders/*diagnosis
MH  - Vision Tests/*instrumentation
MH  - Visual Acuity/*physiology
OTO - NOTNLM
OT  - Low contrast acuity
OT  - Psychophysics
OT  - Self-testing
OT  - Tablet computer
OT  - Visual acuity
EDAT- 2016/02/24 06:00
MHDA- 2017/03/23 06:00
CRDT- 2016/02/23 06:00
PHST- 2015/12/14 00:00 [received]
PHST- 2016/02/08 00:00 [accepted]
PHST- 2016/02/03 00:00 [revised]
PHST- 2016/02/23 06:00 [entrez]
PHST- 2016/02/24 06:00 [pubmed]
PHST- 2017/03/23 06:00 [medline]
AID - 10.1007/s00417-016-3293-2 [pii]
AID - 10.1007/s00417-016-3293-2 [doi]
PST - ppublish
SO  - Graefes Arch Clin Exp Ophthalmol. 2016 May;254(5):891-9. doi: 
      10.1007/s00417-016-3293-2. Epub 2016 Feb 22.