Beyond photography: Evaluation of the consumer digital camera to identify strabismus and anisometropia by analyzing the Bruckner′s reflex

Beyond photography: Evaluation of the consumer digital camera to identify strabismus and anisometropia by analyzing the Bruckner′s reflex

Amblyopia screening is often either costly or laborious. We evaluated the Canon Powershot TX1 (CPTX1) digital camera as an efficient screener for amblyogenic risk factors (ARF). We included 138 subjects: 84-amblyopes and 54-normal. With the red-eye-reduction feature off, we obtained Bruckner reflex...

Full description

Bibliographic Details
Main Authors: Sadat A. O. Bani, Abadan K Amitava, Richa Sharma, Alam Danish
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2013-01-01
Series:Indian Journal of Ophthalmology
Subjects:
Posterior open globe injuries
posterior to rectus insertion
zone III open globe injuries
Glaucoma severity
juvenile glaucoma
juvenile-onset primary open angle glaucoma
visual field defects
Diabetic retinopathy
renal transplant
visual outcome
Gujarati
logMAR
repeatability
validity
visual acuity
Multiple sclerosis
optic neuritis
optical coherence tomography
retinal nerve fi ber layer
visual functions
Axon diameter
electron microscopy
nerve fiber layer
oligodendrocytes
pathology
Frequency doubling technology perimetry
pediatric visual field testing
standard automated perimetry
Central corneal thickness
glaucoma
pachymetry
20G Silicone rod
monocanalicular stent
canalicular laceration repair
Coat′s like response
pigmented paravenous chorioretinal atrophy
Retinochoroiditis radiata
Dacryocystectomy
oculosporidiosis
Rhinosporidium
Infectious scleritis
microbial scleritis
ocular infection
scleritis
Congenital ectropion
congenital eyelid imbrication syndrome
congenital floppy eyelid syndrome
congenital lax upper eyelid syndrome
down syndrome
Inner retinal layer thickness
optic nerve hypoplasia
outer retinal layer thickness
retinal nerve fiber layer thickness
spectral domain optical coherence tomography
Abducens nerve palsy
hyperhomocysteinemia
isolated abducens nerve palsy
nontraumatic
Inverted internal limiting membrane flap technique
macular hole
macular hole surgery
Ocular
positron emission tomography
tuberculosis
High myopia
myelination
reduced vision
Amblyopia
anisometropia
digital camera
photoscreening
strabismus
Online Access:http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=10;spage=608;epage=611;aulast=Bani
Description
Summary:Amblyopia screening is often either costly or laborious. We evaluated the Canon Powershot TX1 (CPTX1) digital camera as an efficient screener for amblyogenic risk factors (ARF). We included 138 subjects: 84-amblyopes and 54-normal. With the red-eye-reduction feature off, we obtained Bruckner reflex photographs of different sized crescents which suggested anisometropia, while asymmetrical brightness indicated strabismus; symmetry implied normalcy. Eight sets of randomly arranged 138 photographs were made. After training, 8 personnel, marked each as normal or abnormal. Of the 84 amblyopes, 42 were strabismus alone (SA), 36 had anisometropia alone (AA) while six were mixed amblyopes (MA). Overall mean sensitivity for amblyopes was 0.86 (95% CI: 0.83-0.89) and specificity 0.85 (95% CI: 0.77-0.93). Sub-group analyses on SA, AA and MA returned sensitivities of 0.86, 0.89 and 0.69, while specificities were 0.85 for all three. Overall Cohen′s Kappa was 0.66 (95% CI: 0.62-0.71). The CPTX1 appears to be a feasible option to screen for ARF, although results need to be validated on appropriate age groups.
ISSN:0301-4738
1998-3689

Similar Items