Contact Lens Use Among Water Polo Players at Different Age Levels

Komori, Yasuka; Enomoto, Itaru; Maeda, Akira; Kono, Ichiro

doi:10.7600/jspfsm.56.105

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Although some studies on vision correctional devices have been conducted (Sado, 1998;Komori et al, 2007), statistics on their effects in boys and girls at these ages is not readily available. In the present study, the percentage of device users was higher for girls and both boys and girls tended to wear contact lenses rather than glasses from about 14 years of age.…”

Section: Discussionmentioning

confidence: 99%

Development and Gender Differences in Dynamic and Kinetic Visual Acuities in Children from 8 to 17 Years of Age

Kohmura

Yoshigi

Sakuraba

et al. 2008

Int. J. Sport Health Sci.

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This study was conducted to elucidate the development and gender differences in dynamic and kinetic visual acuities in children from 8 to 17 years of age. The subjects were 867 boys and girls. The test parameters were static visual acuity, kinetic visual acuity, and dynamic visual acuity and the test was done using a method that allowed evaluation of many subjects in a short time. The speed at which the target moved started at 40 rpm and was reduced gradually thereafter in measurement of dynamic visual acuity. In measurement of kinetic visual acuity, the target moved at 30 kilometers per hour. The results indicated that the dynamic visual acuity improved gradually with age and a significant (pϽ Ͻ0.01) gender difference was noted. However, there were no changes or gender difference in kinetic visual acuity. Therefore it was understood that there was a difference in the developmental patterns for dynamic and kinetic visual acuities.

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Section: Discussionmentioning

confidence: 99%

Development and Gender Differences in Dynamic and Kinetic Visual Acuities in Children from 8 to 17 Years of Age

Kohmura

Yoshigi

Sakuraba

et al. 2008

Int. J. Sport Health Sci.

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“…However, several problems are associated with the use of the disposable type during water-polo play, such as the loss of contact lenses in the water and the lenses moving out of place over the eye (Komori, Enomoto, Maeda, & Kono, 2007). Further improvement of disposable lenses to make them more suitable for water-polo players must be considered.…”

Section: Contact Lens Use During Water-polo Match Playmentioning

confidence: 99%

The use of contact lenses during water-polo play: A 20-year study of Japanese college players

Komori

Kobayashi²,

Murase

et al. 2013

Journal of Sports Sciences

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This study investigated the extent of contact-lens use in Japanese college water-polo male players over 20 years (1991-2011, once every five years). Information about the use of contact lenses during play and the types of contact lens was obtained through a self-report questionnaire. The proportion of contact lens use among the players while playing water polo differed from 1991 to 2011 (χ2(4) = 25.28, P < 0.001, Cohen's d = 0.63). Fifty-four per cent of the players used contact lenses while playing in 1991 (P < 0.001); more than 74% in 1996; 89% in 2001; 84% in 2006; and 86% in 2011. While 96% of the contact lenses used by the players in 1991 were the soft type, 74%, 92%, 86%, and 88% of the contact lenses used in 1996, 2001, 2006, and 2011, respectively, were the disposable type. These findings indicated a high percentage of players were using contact lenses while playing water polo between 1996 and 2011. This could be because the majority of players used disposable lenses. The results suggest that increasing use of contact lenses by water-polo players is beneficial.

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Effects of the Use of Contact Lens on Static and Kinetic Visual Acuity, Ocular Pain, and Blurred Vision During a Water Polo Match

康加¹,

康司²,

至³

et al. 2011

Tairyoku Kagaku

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This study examined the effects of the use of contact lenses on static and kinetic visual acuity, ocular pain, and blurred vision during a water polo match. Eleven male water polo players participated in this study, and were assigned to one of two groups: contact lens users (CL, n=5） and non-users (NCL, n=5）. Both groups participated in a typical water polo match with four 7-min periods and 2-min resting intervals between the four periods. Static and kinetic visual acuity, subjective ocular pain, and blurred vision were measured before the match (pre-test）, during the match (after each of four 7-min periods）, and during the recovery phase at 5, 15, and 30 min after the completion of the match. Results showed that kinetic visual acuity was significantly lower for the NCL group than for CL in the 4 th period of the match. In addition, for the NCL group, kinetic visual acuity was significantly lower in the 3 rd and the 4 th periods than at the pre-test time. On the other hand, static visual acuity did not significantly differ between the two groups; but, for NCL, static visual acuity was significantly lower in the 4 th period than at the pre-test time. According to self-evaluation scores, ocular pain significantly increased in NCL compared to CL in the 3 rd and 4 th periods. Ocular pain in NCL was significantly higher between the 2 nd period and recovery phase at 5 min than at the pre-test time. Blurred vision was significantly higher in NCL than CL between the 2 nd period and recovery phase at 5 min. Blurred vision in NCL was significantly higher at the same duration than at the pre-test time. These findings indicate that the use of contact lenses may prevent ocular pain and blurred vision, maintaining both the static and kinetic visual acuity at a normal level during a water polo match. Further, the results of this study suggest that the use of contact lenses is effective for water polo players.(Jpn. J. Phys. Fitness Sports Med. 2011, 60：113-120）

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Contact Lens Use Among Water Polo Players at Different Age Levels

Cited by 3 publications

References 5 publications

Development and Gender Differences in Dynamic and Kinetic Visual Acuities in Children from 8 to 17 Years of Age

Development and Gender Differences in Dynamic and Kinetic Visual Acuities in Children from 8 to 17 Years of Age

The use of contact lenses during water-polo play: A 20-year study of Japanese college players

Effects of the Use of Contact Lens on Static and Kinetic Visual Acuity, Ocular Pain, and Blurred Vision During a Water Polo Match

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