연령대에 따른 굴절이상안에 대한 분석

김혜동 대구보건대학 2013 대구보건대학 論文集 Vol.33 No.-

Objectives: It is to measure the abnormal refraction eyes in children, in the middle and high school student, in the adults, so that their pay more attention to their visual acuity. Methods: The analysis for abnormal refraction eyes in children, in the middle and high school students, in the adults was carried out on the basis of the refractive error measurement. Results: 1. In children, Refractive diagnosis was composed of myopia(39.5%), hyperopia(2%), astigmatism(57.5%), normal(1%). In the middle and high school students, Refractive diagnosis was composed of myopia(39.5%), hyperopia(2%), astigmatism(57.5%), normal(1%). In the adults, Refractive diagnosis was composed of myopia(37.5%), hyperopia(1.4%), astigmatism(61.5%) 2. In children, The dmounts of refractive error in myopia were 0.25≤D≤3.00 (83.54%), 3.25≤D≤6.00 (16.46%), D≤6.25 (0%). In the middle and high school students, The amounts of refractive error in myopia were 0.25≤D≤3.00 (83.54%), 3.25≤D≤6.00 (16.46%), D≤6.25 (0%). In the adults, The amounts of refractive error in myopia were 0.25≤D≤3.00 (55.6%), 3.25≤D≤6.00 (37.0%), D≤6.25 (7.4%). 3. In children, The astigmatism was classified by With-the-rule (78.26%), Against-the-rule (14.78%), Oblique (6.96%). In the middle and high school students, The astigmastism was classified by With-the-rule (78.26%), Against-the-rule (14.78%), Oblique (6.96%). In the aduts, The astigmastism was classified by With-the-rule (70.5%), Against-the-rule (13.6%), Oblique (15.9%). 4. In children, Cylindrical power of the astigmatism were 0.25≤D≤1.00 (67.8%), 1.25≤D≤2.00 (21.7%). In the middle and high school students, Cylindrical power of the astigmatism were 0.25≤D≤3.00 (79.7%), 3.25≤D≤6.00 (15.3%), D≥6.25 (5.0%), In the adults, Cylindrical power of the astigmatism were 0.25≤D≤1.00 (72.7%), 1.25≤D≤2.00 (22.7%), 2.25≤D≤3.00 (4.6%). 5. In children, Rate of the Spherical Equivalent was 0.25≤D≤3.00 (73.0%), 3.25≤D≤6.00 (23.5%), D≥6.25 (3.5%), respectively, In the middle and high school students, Rate of the Spherical Equivalent was 0.25≤D≤3.00 (42.4%), 3.25≤D≤6.00 (50.8%), D≥6.25 (6.8%), respectively, In the adults, Rate of the Spherical Equivalent was 0.25≤D≤3.00 (62.6%), 3.25≤D≤6.00 (27.3%), D≥6.25 (9.1%), respectively. Conclusions: In children, High Astigmastism were investigated the highest rale(10.5%) in the abnormal refraction eyes. In the adults, Olique were investigated the highest rale(15.3%) in the abnormal refraction eyes.

학령기 아동의 안경착용이 근시진행에 미치는 영향

이석주,박성종,전영윤 한국안광학회 2011 한국안광학회지 Vol.16 No.2

Purpose: We analyzed the influence of myopic's eye-glasses wearing on myopia progress after cycloplegic refraction. Methods: The 33 people (66 eyes) were school children from 8 years to 12 years having no experience eye-glasses wearing, they were taken cycloplegic refraction at the 100th, the 200th and 300th days in order to evaluate myopia progression. We investigated the eye-glasses wearing group (experimental group, 32 eyes) and the non-eye-glasses wearing group (control group, 34 eyes). The eye-glasses power of the experimental group were -0.50 D, -0.75 D, -1.00 D, -1.25 D and -1.50 D. We compared experimental group with control group for myopia progress according to period, age, and refraction error and investigated the myopia progress according to the eye-glasses power of experimental group. Results: At the 300th day from the first cycloplegic refaction, spherical equivalent for the experimental group increased as -1.03±0.43 D (t=13.36, p<0.001) and for the control group increase as -0.61±0.35 D (t=10.05, p<0.001) and two groups were statistical difference. Myopia power for experimental group increased 60.75%, for control group increased 56.66% at the 300 days. According to eye-glasses power increased 41.19±15.25% at -1.50 D, 36.74±19.29% at -1.25 D, 56.57± 20.21% at -1.00 D, 87.26±49.38% at -0.75 D and 106.69±59.60% at -0.50 D. Conclusions: The myopia power for the eye-glasses wearing group was 0.46 D faster than the non-eye-glasses wearing group at the 300th day from the first cycloplegic refraction. We will consider the effect of non-eye-glasses wearing to protect the progressing myopia and prescribe the under correction for school children having no experience eye-glasses wearing. 목적: 학령기 아동에게 조절마비하 굴절검사를 시행 한 이후 안경착용이 근시진행에 미치는 영향에 대하여 분석 하고자 하였다. 방법: 안경착용경험이 없는 8세 이상 12세 이하의 학령기 아동 33명(66안)에 대하여 근시의 진행정 도를 알아보기 위하여 조절마비하 굴절검사를 기간별(초기, 100일, 200일, 300일)로 실시하였다. 안경착용군(실험군, 32안)은 최초 조절마비하 굴절검사 이후에 나안시력 0.6에 맞춰 안경을 착용하도록 하였으며 굴절이상도에 따른 안 경굴절력은 -0.50 D, -0.75 D, -1.00 D, -1.25 D 그리고 -1.50 D였으며 비안경착용군(대조군, 34안)은 기간별로 조 절마비하 굴절검사를 시행하였다. 실험군과 대조군에 대하여 기간별, 연령별, 굴절이상도별로 근시의 진행정도를 비 교하였으며, 실험군은 안경착용굴절력값에 따른 근시의 진행정도를 관찰하였다. 결과: 조절마비하 굴절검사 300일 을 기준으로, 안경착용군(실험군)에서 평균 등가구면 굴절력 -1.03±0.43D(t=13.36, p<0.001) 증가하였고, 비안경 착 용군(대조군)에서는 -0.61±0.35 D(t=10.05, p<0.001) 증가하여 통계학적 유의성이 있었다. 안경처방값에 따라 -1.50 D에서 41.19±15.25%, -1.25 D에서 336.74±19.29%, -1.00 D에서 56.57±20.21%, -0.75 D에서 87.26± 49.38%, -0.50 D에서 106.69±59.60%가 증가하였다. 결론: 안경착용군이 비안경착용군보다 300 일을 기준으로 0.46 D 더 근시진행이 빨랐으며 근시진행의 완화를 위해서는 안경착용을 하지 않는 것이 효과적이라 사료된다. 그러나, 학령기 아동에게 최초의 안경착용이 필요하다면 조절마비하 굴절검사로부터 300일 이내의 근시진행에 대하여 저교 정을 고려해 볼 수 있겠다.

중·고등학생들의 비정시안에 대한 분석

김혜동 대구보건대학교 2012 대구보건대학 論文集 Vol.32 No.-

Objectives: It is measure the abnormal refraction eyes in the middle and high school students, so that their parents and school teacher pay more attention to their visual acuity. Methods: The analysis for abnormal refraction eyes in the middle and high school students was carried out on th basis of the refractive error measurement. Results: 1. Refractive diagnosis was composed of myopia(39.5%), hyperopia(3%), astigmatism(57.5%), normal(1%). 2. The amouts of refractive error in myopia were 0.25≤D≤3.00 (83.54%), 3.25≤D≤6.00 (16.46%), D≤6.25 (0%). 3. The astigmatism was classified by With-the-rule (78.26%), Against-the-rule (14.78%), Oblique (6.96%). 4. Cylindrical power of the astigmatism were 0.25≤D≤1.00 (67.83%), 1.25≤D≤2.00 (21.74%), 2.25≤D≤3.00 (10.43%). 5. Rate of the Spherical Equivalent was 0.25≤D≤3.00 (72.73%), 3.25≤D≤6.00 (24.24%), D≥6.25 (3.3%), respectively. Conclusions: Weakly Astigmatism were investigated the hightst rate(67.83%) in the abnormal refraction eyes.

Prediction of Axial Length Using Schematic Eyes in Emmetropia

Hyeong-Su Kim,Hyun-Gug Cho,Byeong-Yeon Moon,Dong-Sik Yu 대한시과학회 2016 대한시과학회지 Vol.18 No.2

목 적: 여러 모형안을 이용하여 굴절이상도와 각막곡률반경으로부터 안축길이를 예측할 수 있는 계산식 을 유도하고 그 유용성을 평가하고자 하였다. 방 법: 안질환 및 안과적 수술 과거력이 없는 정시안 101명(174안)을 대상으로 하였으며, 평균 나이는 54.62±9.11세였다. Gullstrand의 정식 모형안, Gullstrand의 약식 모형안, Gullstrand-Emsley의 약식 모 형안, Le Grand의 이론적 모형안, Bennett와 Rabbetts의 약식 모형안을 이용하여 안축길이를 예측하는 계 산식을 유도하였다. 각각의 계산식에 자동굴절력계로 측정한 굴절이상도, 각막곡률반경을 적용하여 안축길 이를 예측하였고, IOL-Master로 실측한 안축길이와 비교하여 일치도를 평가하였다. 결 과: 측정된 안축길이와 계산된 안축길이 사이의 차이는 Gullstrand의 약식 모형안, Gullstrand- Emsley의 약식 모형안, Bennett와 Rabbetts의 약식 모형안, Le Grand의 이론적 모형안, Gullstrand의 정 식 모형안 순으로 적었으며, Gullstrand의 약식 모형안으로 계산된 안축길이만이 측정된 안축길이와 통계적 으로 유의한 차이를 보이지 않았다(p=0.309). 그 중에서도 Gullstrand의 약식 모형안이 일치도가 높은 것으로 나타났다. 결 론: 정시안에서 굴절이상도와 각막곡률반경을 기반으로 한 안축길이의 예측은 Gullstrand의 약식 모 형안이 더 정확하였다. 따라서 계산식을 이용한 정확한 안축길이의 예측은 개인별 안경렌즈 설계에 적용될 수 있을 것으로 본다. Purpose: This study aimed to drive formulas and evaluate their usefulness to predict axial length (AL) on the basis of refractive error and corneal radius using schematic eyes. Methods: This study comprised 101 emmetropic subjects (174 eyes) with a mean age of 54.62±9.11 years. All subjects were free of any ocular disease and had no history of ocular surgery or trauma. Formulas for calculation of ALs were obtained using Gullstrand’s exact schematic eye, Gullstrand’s simplified schematic eye, Gullstrand-Emsley’s schematic eye, Le Grand’s schematic eye, and Bennett and Rabbetts’schematic eye, respectively. ALs were predicted by each formula with measured refractive error and corneal radius by auto-refractometer. The calculated ALs were compared with measured ALs by IOL-master, and the agreement between ALs were evaluated. Results: The difference between measured AL and calculated AL was small in the order of Gullstrand’s simplified schematic eye, Gullstrand-Emsley’s schematic eye, Bennett and Rabbetts’ schematic eye, Le Grand’s schematic eye, and Gullstrand’s exact schematic eye. Gullstrand’s simplified schematic eye only was not statistically significant (p=0.390), there was high agreement between two ALs in Gullstrand’s simplified schematic eye. Conclusions: Axial length can be more accurately predicted by formula for calculation based on refractive error and corneal radius using Gullstrand’s simplified schematic eye in emmetropia. Therefore, the accuracy prediction of axial length using a formula could be applied to design of individual spectacle lenses.

Risk Factors for Inflammatory Dry Eye in Young Adults in Twenties

Jung-Eun Park,Min-Hye Park,Koon-Ja Lee 대한시과학회 2020 대한시과학회지 Vol.22 No.1

목적 : 건성안의 핵심적인 원인으로 염증이 제시됨에 따라 본 연구에서는 한국 20대 성인을 대상으로 콘택트렌즈 착용 및 각막굴절교정술이 염증성 건성안(inflammatory dry eye syndrome)에 미치는 영향을 알아보고자 하였다. 방법 : 안질환이 없는 20대 성인 81명(162안)을 대상으로 염증 생체지표인 ‘기질금속단백분해효소’(MMP-9: Matrix Metalloproteinase-9)의 활성도와 염증성 건성안 감별진단법으로 제시된 ‘안구표면질환지수(OSDI, Ocular Surface Disease Index)/결막충혈’ 검사법으로 염증성 건성안을 감별진단하였다. 각막굴절교정술 및 콘택트렌즈 착용 여부에 따른 유병률과 위험요인은 χ2-test 검정과 하였고, 위험비(odds ratio, OR)는 로지스틱 회귀분석으 로 검정하였으며 유의수준은 0.050 이하로 하였다. 결과 : 전체 대상자의 염증성 건성안 유병률은 MMP-9 검사, ’OSDI, 결막충혈’ 검사 기준 각각 77.15%, 64.31% 로 나타났다. 콘택트렌즈 착용군의 염증성 건성안 비율은 검사법 기준으로 각각 85.23%, 75.00%로 미착용군의 67.57%, 52.70% 보다 높았고, 염증성 건성안 발생 가능성이 2.77배(OR 2.77, 95% CI 1.29~5.99), 2.69배 (OR 2.69, 95% CI 1.39~5.23)로 높게 나타났다. 각막굴절교정술을 받은 군의 염증성 건성안 비율은 검사법 기준 각각 81.25%, 75.00%로 수술을 받지 않은 군의 76.71%, 63.69%보다 높았으나 통계적으로 유의한 차이는 아니 었다(p=0.682), (p=0.370). 결론 : 20대 한국 성인의 염증성 건성안 비율은 매우 높고, 콘택트렌즈를 착용한 경우에 염증성 건성안의 발병 확률은 미착용안에 비해 2배 이상 높은 것으로 나타나 콘택트렌즈 착용자의 경우 이를 예방하기 위한 콘택트렌즈 관리교육이 중요할 것으로 생각된다. Purpose : As inflammation is suggested as a core drive factor for dry eye, in this study the effects of contact lens wear and corneal refractive surgery on inflammatory dry eye were investigated in Korean twenties. Methods : Eighty-one adults (162 eyes) in their twenties who had no ocular disease were evaluated by 'Matrix Metalloproteinase-9 (MMP-9)' test as known biomarker for inflammatory dry eye and 'OSDI/conjunctival hyperemia' test for screening of inflammatory dry eye. We analyzed prevalence and risk factors of inflammatory dry eye based on two inflammatory dry eye tests, and analyzed them using Chi-square test and logistic regression. The statistical significance level was p<0.050. Results : The prevalence of inflammatory dry eye evaluated by MMP-9 and OSDI/conjunctival hyperemia tests in all subjects was shown 77.15% and 64.31%, respectively. The prevalence of inflammatory dry eye in contact lens wearer group with two tests was 85.23% and 75.00%, respectively, and that in the non-wearer group was 67.57% and 52.70%, respectively. The risk of inflammatory dry eye in contact lens wears was 2.77 times (OR 2.77, 95% CI 1.29~5.99), and 2.69 times (OR 2.69, 95% CI 1.39~5.23) higher than non contact lens wearers, respectively. The prevalence of inflammatory dry eye in corneal refractive surgery group compared with non operative group was not significantly different (p=0.682 and p=0.370, respectively). Conclusion : It was confirmed that the prevalence of inflammatory dry eye in Korean twenties was very high, and the odds ratio of inflammatory dry eye was 2 times higher than contact lens wearers. Therefore, the contact lens care education for contact lens weareres would be necessary to prevent inflammatory dry eye.

단안가림검사와 양안개방 안경처방 값 비교

정연홍 대한시과학회 2012 대한시과학회지 Vol.14 No.3

목적: 단안가림검사와 양안개방 안경처방 값을 비교하여 굴절검사의 임상자료로 활용되고자 한다. 방법: 안질환과 시각적 기능에 문제가 없는 만 18세~25세 이하의 대학생 47명을 대상으로 우위안과 단안가림검사, 조절래그 그리고 즉시대비검사로 양안개방 원용안경을 처방하였다. 결과: 조절래그는 우위안 0.58±0.67D, 비우위안 0.70±0.62D로 비우위안에서 더 많았으며 통계적으로 높은 연관성(r=0.824, p=0.000)과 유의한 차이(t=-2.078, p=0.043)를 나타냈다. 단안가림검사와 양안개방 안경처방에 의한 굴절력 차이는 우위안 -0.24±0.29D(mean±SD), 비우위안 -0.26±0.28D로 즉시대비검사로 측정한 굴절력이 적은 것으로 분석되었다. 결론: 굴절이상 및 시기능 검사에서 우위안과 비우위안의 정확한 구분으로 신중하게 처방값을 결정하여야 할 것이다. Purpose: To get a effective clinical data about refractive error we compared the monocular refraction with the binocular refraction on 47 myopic students aged between 18 and 26 years. Method: The college students without abnormal binocular function were tested on the dominant eye test, accommodation lag, monocular refraction and binocular refraction with HIC test. Results: There was statistical differences in accommodative lags between dominant(0.58±0.67D) and non-dominant eye(0.70±0.62D)(p=0.043). The mean value of the binocular refraction using HIC method is less as dominant(-0.24±0.29D) and non-dominant eye(-0.26±0.28D) than the one of the monocular refraction. Conclusions: This results indicates that the prescription on dominant and non-dominant eyes should be cautious based on the refraction and binocular function tests.

사진촬영으로 측정한 카파각

신형섭,장준규 한국안광학회 2015 한국안광학회지 Vol.20 No.4

Purpose: The kappa angles of human eye were measured by photographs. The relationship between the dominant eye and far refractivity is studied. Methods: 112 adults participated in this study. The mean age was 22.54±5.90 years. The kappa angles were measured by the deviation of the flash image in the photographs of eye. the dominant eye and the far refractivity were analyzed. Results: The distributions of kappa angles were 78.6% (176 eyes) in the positive angle, 15.2% (34 eyes) in the negative angle, and 6.2% (14 eyes) in the 0o. The kappa angles were 4.50±4.70o for the dominant eye, 4.93±4.34o for the non-dominant eye, +6.00±2.22o for the hypermetropia, 4.91 ±4.97o for the emmetropia, and +4.61±4.49o for the myopia. The biggest kappa angles was odserved in the hypermetropia and the angles was getting smaller in the emmetropia, and the myopia. Conclusions: The kappa angle of the dominant eye was smaller than non-dominant eye. The kappa angle was smaller as the far refractivity is lower. The kappa angle can be directly measured by the photographic method. 목적: 눈의 카파각을 사진촬영방법으로 확인하였으며, 우세안과 원점굴절도와의 상관관계를 연구하였다. 방법: 성인 112명, 평균나이는 22.54±5.90세를 대상으로 카메라 플래시를 터트리면서 양안의 사진을 촬영하였다. 촬영된 사진으로 카파각을 측정하였으며, 우세안과 원점굴절도와의 관계를 비교분석하였다. 결과: 카파각의 부호는 양성이78.6%(176안), 음성이 15.2%(34안), 0o가 6.2%(14안)이었고, 크기는 우세안 +4.50±4.70o, 비우세안 +4.93±4.34o로나타났으며, 원시안에서 +6.00±2.22o, 정시안에서 +4.91±4.97o, 근시안에서 +4.61±4.49o로 원시안에서 가장 크고정시안, 근시안의 순으로 감소하였다. 결론: 우세안의 카파각이 비우세안보다 작았으며, 원점굴절도가 작을수록 카파각이 작았다. 사진촬영 방법으로 카파각을 직접 평가할 수 있었다.

Accuracy of Axial Length Calculation Using Schematic Eyes in Ametropia

Hyeong-Su Kim,Hyun-Gug Cho,Byeong-Yeon Moon,Dong-Sik Yu 대한시과학회 2016 대한시과학회지 Vol.18 No.4

목 적: 각막곡률반경과 등가구면 굴절이상도 측정값을 이용하여 비정시안의 안축길이를 산출하는 계산식 을 유도하고 계산값의 정확성을 평가하였다. 방 법: 안과적 질환 및 수술 과거력이 없는 평균 나이 47.17±13.01세인 비정시안 524명(1048안)을 대상 으로 하였다. Gullstrand의 정식 모형안, Gullstrand의 약식 모형안, Gullstrand-Emsley의 약식 모형안, Le Grand의 이론적 모형안, Bennett와 Rabbetts의 약식 모형안을 이용하여 안축길이를 계산하는 계산식을 유도하였다. 각각의 계산식에 자동굴절력계로 측정한 각막곡률반경과 등가구면 굴절이상도를 적용하여 안축 길이를 계산하였고, IOL-Master로 측정한 안축길이와 비교하여 일치도를 평가하였다. 결 과: 근시안과 원시안 모두에서 Gullstrand-Emsley의 약식 모형안을 사용하였을 때 계산된 안축길이 가 가장 정확하였다. 그 다음으로 Gullstrand의 약식 모형안, Bennett와 Rabbetts의 약식 모형안, Le Grand의 이론적 모형안, Gullstrand의 정식 모형안 순으로 나타났다. 결 론: 각막곡률반경과 등가구면 굴절이상도를 적용한 안축길이 계산식은 비정시안의 개인별 안경렌즈 설계에 유용하게 활용될 수 있을 것이다. Purpose: To derive axial length(AL) calculation formulas for ametropia using measured corneal radius and spherical equivalent refractive error and to assess the accuracy of the formulas. Methods: This study comprised 524 ametropic subjects(1048 eyes) with a mean age of 47.17±13.01 years. The formulas for calculation of ALs were obtained using Gullstrand’s exact schematic eye, Gullstrand’s simplified schematic eye, Gullstrand-Emsley’s schematic eye, Le Grand’s schematic eye, and Bennett and Rabbetts’ schematic eye, respectively. ALs were calculated from each formula by using measured corneal radius and spherical equivalent refractive error by auto-refractometer. The calculated ALs were compared with measured ALs by IOL-master, and the agreement between ALs were evaluated. Results: The differences between measured AL and calculated AL of ametropia(myopic and hyperopic eyes) were small in the order of Gullstrand-Emsley’s schematic eye, Gullstrand’s simplified schematic eye, Bennett and Rabbetts’ schematic eye, Le Grand’s schematic eye, and Gullstrand’s exact schematic eye. Conclusions: The accuracy calculation of axial length using the formula could be applied usefully to design of individual ophthalmic lenses.

연령대별 우세안과 비우세안의 비교 연구

이완석,예기훈,An Sun-Joung Leigh,신범주 한국안광학회 2013 한국안광학회지 Vol.18 No.2

Purpose: When we look at the object, we used the dominant eye mainly. For this reason, a prescription of thedominant eye is an important factor for glasses and contact lenses. This study evaluated visual acuity differencesbetween dominant and nondominant eyes through analyzing refractive power changes in both eyes by the ages. Methods: This study was performed to investigate the relationship between refractive error and dominant eyewhich had the superiority in the function of binocular. 186 subjects without ocular disease were examined on thedominant eye. The dominant eye was examined by the Hole-in-the-card test. For the consistency of themeasurements, we tested refractive power in three times by the same person. Results: Using SPSS, therelationship between vision and the dominant eye was analyzed. 135 people of the whole subjects have thedominant eye on right. The Number of the non-dominant eye is 51. We were divided into 3 types, the groupunder the age of 10 that begins to expose environment factor affect on vision (the average age 8.8±1.18) and theage group of 10 to 20 that begins to change refractive power in earnest (the average age 14.1±2.58) and thegroup after the age 20 that began to stabilize vision (the average age 51.8±17.51). The visual acuity of dominanteye was higher than non-dominant eye in all age groups. Nevertheless, these results were not statisticallysignificant. Mean astigmatism of dominant eye was smaller than the non-dominant eye, and this is significant,statistically (p=0.017<0.05). Conclusions: It is expected that the balanced eye with a lower level of astigmatismhas a more possibility become a dominant eye. 목적: 양안으로 사물을 주시할 때 우세안을 주로 사용한다. 이러한 이유로 안경과 콘택트렌즈 처방 시 우세안의중요성이 크다. 이를 위해 본 연구는 연령대별로 구분하여 양안에 있어서 굴절력의 변화에 따른 우세안과 비우세안의 시력 차이가 있는지 알아보았다. 방법: 안질환이 없는 186명을 대상으로 Hole-in-the-card test법을 통한 우세안을검사하였다. 검사의 일관성을 위해 동일인이 측정하였으며, 검사의 신뢰성을 높이기 위해 3회 반복 실시하였다. Spss 통계를 통해 굴절력에 따른 우세안과 비우세안의 상관관계를 알아보았다. 결과: 대상자 186명 중 우안 우세안은 135명, 좌안 우세안은 51명이었다. 굴절이상 환경에 노출되기 시작하는 10세 이전(평균 8.8±1.18세)과 본격적으로 굴절이상이 발생하는 10세에서 20세 사이(평균 14.1±2.58세), 그리고 시력안정화 시기에 접근하는 20세 이후(평균51.8±17.51) 모두 우세안의 시력이 비우세안보다 시력이 높았지만 통계적으로 유의하지 않았다. 근시성 난시에 있어서 우세안의 난시 굴절력 평균값이 비우세안 난시안의 평균값보다 작게 나타났으며, 통계적으로 유의한 결과를나타내었다(p=0.017<0.05). 결론: 양안 중에서 전체적으로 난시도가 작고 균형 잡힌 눈이 우세안으로 선택될 확률이높다고 판단된다.

근시성 굴절부등에 대한 임상적 고찰

주석희,심문식,심현석 한국안광학회 2009 한국안광학회지 Vol.14 No.1

Purpose: This study has been conducted to know the prevalence of anisometropia and corneal refraction, accommodative response of myopic anisometropia. Methods: The study subject were 67 persons who myopic anisometropia of at least 1.00D, from among 808 total subject without ophthalmic diseases history from age 5 to 89 and the test were used to examine with both eyes open-view autorefractometer (NvisionK-5001). Results: The case which anisometropia were 85(10.5%) persons and myopic anisometropia were 67(78.8%) persons among the anisometropia. Difference between higher myopic eye and lower myopic eye were -1.22D.94 in spherical equivalent, -0.25D.72 in accommodative response, 0.04D.68 in corneal refraction. In addition, the same case of both eyes accommodative response were 33(49.3%) persons, the great case of lower myopic eye accommo- dative response were 25(37.3%) persons and the great case of higher myopic eye accommodative response were 9(13.4%) persons. Conclusions: Myopic anisometropia was not affected by corneal refraction and both eyes difference of spherical equivalent was less as compared with both eyes difference of accommodative response. 목적: 굴절부등의 발생률과 근시성 굴절부등의 양안 조절반응량, 각막굴절력 등을 알아보았다. 방법: 안질환이 없 는 5세에서 89세의 남녀 808명 중 양안 근시성 굴절부등이 1.00D이상인 67명을 대상으로 하였으며, 양안개방형 자 동굴절검사기(Nvision K-5001)를 이용해 검사를 실시하였다. 결과: 굴절부등이 있는 경우는 85명(10.5%)이였고, 그 중 67명(78.8%)이 근시성 굴절부등으로 나타났다. 근시성 굴절부등의 굴절이상이 강한 쪽과 약한 쪽으로 분리하여 양안 차이를 비교해 본 결과 등가구면굴절력은 -1.22D.94로, 조절반응량은 -0.25D.72로, 각막굴절력은 0.04D.68로 나타났다. 또한 양안의 조절반응량이 같은 경우가 33명(49.3%), 근시가 약한 쪽이 많은 경우가 25명 (37.3%), 근시가 강한 쪽이 많은 경우가 9명(13.4%)으로 나타났다. 결론: 근시성 굴절부등은 각막굴절력에 영향을 받지 않았으며, 양안 등가구면굴절력 차이에 비해 조절반응량의 차이가 적었다.