PDF(Pubmed)
Abstract：
OBJECTIVE: The purpose of the study is to establish normative values of eye parameters such as lens thickness (LT), lens diameter (LD), and axial length (AXL) among wide age range of Saudis using Pentacam AXL and compare these values between gender, in addition to that, to find the correlation between the age and those parameters.
METHODS: In this prospective cross-sectional study, we measured LT, LD, and AXL in 125 healthy Saudi controls aged between 8 and 60 years using OCULUS Pentacam AXL. The screening tests were performed for each subject to exclude any ocular abnormalities using slit lamp (Haag-Streit BQ 900), refractive error measured using auto refractometer (Topcon KR-1 Autorefractor/Keratometer), and subject who has spherical equivalent more than ± 4.00D and astigmatism more than 1.00DC was excluded from the study. The mean of three readings of LT, LD, and AXL was taken. All examination was applied on one eye (right eye).
RESULTS: The overall mean and standard deviation of LT, LD, and AXL was 2.2 mm ± 0.5, 2.7 mm ± 0.6, and 23.8 mm ± 1.0, respectively. There was no statistically significant difference between males and females in these parameters in all age groups, except in Group 2 (age: 19-30 years), there was a statistically significant difference between males and females in AXL, mean difference (M = 0.48), and P = 0.015. The mean of LT and LD was negatively associated with age. However, there was no significant correlation between AXL and age.
CONCLUSIONS: Normative values of LT, LD, and AXL have been established in wide age group of healthy Saudis; the findings of the present study can highlight not only the normal range of the different ocular parameters, namely LT, LD, and AXL, but also their variation with age and gender.
METHODS: In this prospective cross-sectional study, we measured LT, LD, and AXL in 125 healthy Saudi controls aged between 8 and 60 years using OCULUS Pentacam AXL. The screening tests were performed for each subject to exclude any ocular abnormalities using slit lamp (Haag-Streit BQ 900), refractive error measured using auto refractometer (Topcon KR-1 Autorefractor/Keratometer), and subject who has spherical equivalent more than ± 4.00D and astigmatism more than 1.00DC was excluded from the study. The mean of three readings of LT, LD, and AXL was taken. All examination was applied on one eye (right eye).
RESULTS: The overall mean and standard deviation of LT, LD, and AXL was 2.2 mm ± 0.5, 2.7 mm ± 0.6, and 23.8 mm ± 1.0, respectively. There was no statistically significant difference between males and females in these parameters in all age groups, except in Group 2 (age: 19-30 years), there was a statistically significant difference between males and females in AXL, mean difference (M = 0.48), and P = 0.015. The mean of LT and LD was negatively associated with age. However, there was no significant correlation between AXL and age.
CONCLUSIONS: Normative values of LT, LD, and AXL have been established in wide age group of healthy Saudis; the findings of the present study can highlight not only the normal range of the different ocular parameters, namely LT, LD, and AXL, but also their variation with age and gender.
摘要：
目的：研究的目的是建立诸如镜片厚度（LT）之类的眼睛参数的标准值，透镜直径(LD),和轴长（AXL）在广泛的年龄范围内的沙特使用PentacamAXL和比较这些值之间的性别，除此之外，找到年龄和这些参数之间的相关性。
方法：在这项前瞻性横断面研究中，我们测量了LT,LD,使用OCULUSPentacamAXL，年龄在8至60岁之间的125名健康沙特对照者中的AXL。使用裂隙灯（Haag-StreitBQ900）对每位受试者进行筛查测试，以排除任何眼部异常，使用自动折射仪（TopconKR-1自动折射仪/角膜曲率计）测量的屈光不正，球眼当量超过±4.00D和散光超过1.00DC的受试者被排除在研究之外。LT的三个读数的平均值，LD,AXL被拿走了。所有检查均应用于一只眼睛(右眼)。
结果：LT的总体平均值和标准偏差，LD,AXL分别为2.2mm±0.5、2.7mm±0.6和23.8mm±1.0。在所有年龄组中，男性和女性在这些参数上没有统计学上的显着差异，除了第2组（年龄：19-30岁），在AXL中，男性和女性之间存在统计学上的显着差异，平均差(M=0.48)，P=0.015。LT和LD的平均值与年龄呈负相关。然而,AXL与年龄无显著相关性。
结论：LT的规范值，LD,和AXL已在健康沙特的广泛年龄组中建立;本研究的发现不仅可以突出不同眼部参数的正常范围，即LT,LD,和AXL，但也随着年龄和性别的变化。
方法：在这项前瞻性横断面研究中，我们测量了LT,LD,使用OCULUSPentacamAXL，年龄在8至60岁之间的125名健康沙特对照者中的AXL。使用裂隙灯（Haag-StreitBQ900）对每位受试者进行筛查测试，以排除任何眼部异常，使用自动折射仪（TopconKR-1自动折射仪/角膜曲率计）测量的屈光不正，球眼当量超过±4.00D和散光超过1.00DC的受试者被排除在研究之外。LT的三个读数的平均值，LD,AXL被拿走了。所有检查均应用于一只眼睛(右眼)。
结果：LT的总体平均值和标准偏差，LD,AXL分别为2.2mm±0.5、2.7mm±0.6和23.8mm±1.0。在所有年龄组中，男性和女性在这些参数上没有统计学上的显着差异，除了第2组（年龄：19-30岁），在AXL中，男性和女性之间存在统计学上的显着差异，平均差(M=0.48)，P=0.015。LT和LD的平均值与年龄呈负相关。然而,AXL与年龄无显著相关性。
结论：LT的规范值，LD,和AXL已在健康沙特的广泛年龄组中建立;本研究的发现不仅可以突出不同眼部参数的正常范围，即LT,LD,和AXL，但也随着年龄和性别的变化。
