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1-2/2010 vol. 64
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Skeletal status in subjects with poor visual acuity in independent and institutionalized subjects
Bogna Drozdzowska 1
,
 
Wojciech Pluskiewicz 2
,
 
Anita Lyssek-Boroń 3
,
 
Aleksandra Czekajło 4
,
 
Katarzyna Wiktor 5
,
 
Piotr Adamczyk 6
 
 
 
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1
Department and Chair of Pathomorphology in Zabrze, Medical University of Silesia in Katowice
 
2
Metabolic Bone Diseases Unit, Department and Clinic of Internal Diseases, Diabetology and Nephrology, Medical University of Silesia in Katowice
 
3
Department of Ophtalomology, Sosnowiec
 
4
Department of Nephrology, Hospital in Raciborz
 
5
KCR S.A., Warszawa
 
6
Department and Clinic of Pediatrics, Medical University of Silesia in Katowice
 
 
Corresponding author
Bogna Drozdzowska   

Dept. of Pathomorphology 3 Maja 13/15 Street, 41-800 Zabrze, Poland tel./ fax +48322714994
 
 
Ann. Acad. Med. Siles. 2010;64:16-21
 
Article (PDF)
References (25)
 
KEYWORDS
bone densitometry
poor vision
quantitative ultrasound
 
ABSTRACT
Aim:
The aim of the study was to evaluate skeletal status in subjects with poor vision.

Material and Methods:
Skeletal status was assessed in a group of subjects with poor visual acuity living independently in general community or institutionalized in a nursing home. A group of 91 subjects (47 females - 29 living independently and 18 from nursing home and 44 males - 19 and 25, respectively) were studied. Mean age was 61.3+/-16.8 y. in females and 61.4+/-10.9 y. in males. Binocular visual acuity was evaluated using a Snellen acuity chart. Skeletal status was assessed by dual-energy X-ray absorptiometry at the calcaneus and forearm using PIXI (Lunar, USA) which measures bone mineral density (BMD) and by quantitative ultrasound at hand phalanges using DBM Sonic 1200 (IGEA, Italy) measuring Amplitude-dependent Speed of Sound (Ad-SoS [m/s]).

Results:
Binocular visual acuity was 0.179+/-0.2 in females and 0.09+/-0.14 in males and was significantly lower in males (p<0.01). A visual acuity did not correlate with skeletal variables in either of sexes and was significantly lower in males from nursing home in comparison to males living independently (p<0.001) what was not observed in females. Z-scores were used in order to obtain age-adjusted comparisons of skeletal variables between subjects living independently and in nursing home. In females Z-scores for forearm (-0.304+/-0.92 vs –1.044+/-0.74, p<0.01) and calcaneus (-0.017+/-0.97 vs –1.38+/-0.63, p<0.00001) were significantly higher in individuals living independently than in nursing home, and Z-score for Ad-SoS did not differ significantly. In males no significant differences in Z-scores were noted.

Conclusions:
The results of the study suggest that in both genders fracture risk in institutionalized subjects may be increased; in females due to affected skeletal status, and in males as a consequence of poor vision.

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