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Changes of ocular version with aging in normal Korean population.

Kang NY - J. Korean Med. Sci. (2009)

Bottom Line: All versions were decreased with aging (P<0.001 for all).Levoversion had the largest decrease with aging compared with other versions (P<0.001, respectively) and infraversion had the least decrease with age than levoversion (P<0.001), supraversion (P<0.001).All maximal sustained versions were decreased with aging but the ranges of ocular movements in Koreans were different with Caucasians as version least affected and most affected by age was infraversion and levoversion in Koreans.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology & Visual Science, Holy Family Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. nyeokang@catholic.ac.kr

ABSTRACT
The purpose of this study is to estimate normative values of maximum versions in healthy Koreans and investigate age-associated changes in eye movement, using lateral and vertical version light-reflex (LVR) test. Two hundred forty normal healthy subjects whose corrected visual acuity was better than 20/50 in both eyes, from 4 to 79 yr old (30 subjects in each decade) were studied. Maximum sustained values of dextroversion, levoversion, supraversion, and infraversion in each eye were measured using LVR test. Changes of versions according to age were analyzed. Mean normal value of dextroversion, levoversion, supraversion, and infraversion in normal Koreans was 7.7 mm, 41.6 degrees, 33.9 degrees, and 7.7 mm respectively. Contrary to values of Caucasians, levoversion (adductive movement) was more excessive and infraversion (depression) was smaller in Koreans. All versions were decreased with aging (P<0.001 for all). Levoversion had the largest decrease with aging compared with other versions (P<0.001, respectively) and infraversion had the least decrease with age than levoversion (P<0.001), supraversion (P<0.001). All maximal sustained versions were decreased with aging but the ranges of ocular movements in Koreans were different with Caucasians as version least affected and most affected by age was infraversion and levoversion in Koreans. The study standardized normal maximal versions and aging changes of versions in Koreans.

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Mean values of LVR (lateral and vertical version light-reflex) test in dextroversion and infraversion of right eye. Subjects were grouped according to decade of life. All values are scleral light reflex on the right eye. The values are mean±SEM.
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Figure 2: Mean values of LVR (lateral and vertical version light-reflex) test in dextroversion and infraversion of right eye. Subjects were grouped according to decade of life. All values are scleral light reflex on the right eye. The values are mean±SEM.

Mentions: The mean (±standard deviation, SD) maximum LVR values in dextroversion, levoversion, supraversion and infraversion of the right eye were 7.7±1.6 mm (range 4-10), 41.6±0.9° (range 20-69), 33.9±4.9° (range 20-45), and 7.7±1.7 mm (range 3-11), respectively in normal Koreans. Fig. 2 demonstrates the mean LVR measurements in millimeters for dextroversion and infraversion versus age of the right eye. Mean LVR values in degrees for levoversion and supraversion of the right eye were shown in Fig. 3. All the values were increased until the 3rd decade, and then decreased with advancing age. In levoversion, 62 subjects (62%) showed large adductive movement over 45° of measurements. The mean values of the 3rd decade group showed maximum in all four movements and the absolute maximum values in detroversion, levoversion, supraversion, and infraversion were 9.1±0.9 mm (range 8-10), 51.3±8.7° (range 35-64), 37.8±3.9° (range 35-45), and 8.9±0.9 mm (range 8-11) respectively. From the 6th decade up, no one showed any normal mean value of LVR in any of the version.


Changes of ocular version with aging in normal Korean population.

Kang NY - J. Korean Med. Sci. (2009)

Mean values of LVR (lateral and vertical version light-reflex) test in dextroversion and infraversion of right eye. Subjects were grouped according to decade of life. All values are scleral light reflex on the right eye. The values are mean±SEM.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2719191&req=5

Figure 2: Mean values of LVR (lateral and vertical version light-reflex) test in dextroversion and infraversion of right eye. Subjects were grouped according to decade of life. All values are scleral light reflex on the right eye. The values are mean±SEM.
Mentions: The mean (±standard deviation, SD) maximum LVR values in dextroversion, levoversion, supraversion and infraversion of the right eye were 7.7±1.6 mm (range 4-10), 41.6±0.9° (range 20-69), 33.9±4.9° (range 20-45), and 7.7±1.7 mm (range 3-11), respectively in normal Koreans. Fig. 2 demonstrates the mean LVR measurements in millimeters for dextroversion and infraversion versus age of the right eye. Mean LVR values in degrees for levoversion and supraversion of the right eye were shown in Fig. 3. All the values were increased until the 3rd decade, and then decreased with advancing age. In levoversion, 62 subjects (62%) showed large adductive movement over 45° of measurements. The mean values of the 3rd decade group showed maximum in all four movements and the absolute maximum values in detroversion, levoversion, supraversion, and infraversion were 9.1±0.9 mm (range 8-10), 51.3±8.7° (range 35-64), 37.8±3.9° (range 35-45), and 8.9±0.9 mm (range 8-11) respectively. From the 6th decade up, no one showed any normal mean value of LVR in any of the version.

Bottom Line: All versions were decreased with aging (P<0.001 for all).Levoversion had the largest decrease with aging compared with other versions (P<0.001, respectively) and infraversion had the least decrease with age than levoversion (P<0.001), supraversion (P<0.001).All maximal sustained versions were decreased with aging but the ranges of ocular movements in Koreans were different with Caucasians as version least affected and most affected by age was infraversion and levoversion in Koreans.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology & Visual Science, Holy Family Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. nyeokang@catholic.ac.kr

ABSTRACT
The purpose of this study is to estimate normative values of maximum versions in healthy Koreans and investigate age-associated changes in eye movement, using lateral and vertical version light-reflex (LVR) test. Two hundred forty normal healthy subjects whose corrected visual acuity was better than 20/50 in both eyes, from 4 to 79 yr old (30 subjects in each decade) were studied. Maximum sustained values of dextroversion, levoversion, supraversion, and infraversion in each eye were measured using LVR test. Changes of versions according to age were analyzed. Mean normal value of dextroversion, levoversion, supraversion, and infraversion in normal Koreans was 7.7 mm, 41.6 degrees, 33.9 degrees, and 7.7 mm respectively. Contrary to values of Caucasians, levoversion (adductive movement) was more excessive and infraversion (depression) was smaller in Koreans. All versions were decreased with aging (P<0.001 for all). Levoversion had the largest decrease with aging compared with other versions (P<0.001, respectively) and infraversion had the least decrease with age than levoversion (P<0.001), supraversion (P<0.001). All maximal sustained versions were decreased with aging but the ranges of ocular movements in Koreans were different with Caucasians as version least affected and most affected by age was infraversion and levoversion in Koreans. The study standardized normal maximal versions and aging changes of versions in Koreans.

Show MeSH
Related in: MedlinePlus