Bhatia Jagdish
Department of Ophthalmology, Rustaq Hospital, Rustaq, Sultanate of Oman. E-mail:
Oman Med J. 2011 Jan;26(1):23-5. doi: 10.5001/omj.2011.06.
A prospective study to evaluate the changes in A-Scan axial parameters of phakic normal eyes before and after instillation of 1% topical Tropicamide and 2% Homatropine eye drops.
Anterior chamber depth, lens thickness, vitreous chamber length, and ocular axial length were measured in 76 eyes before and after cycloplegia induced by 1% topical Tropicamide, and in 28 eyes with 2% Homatropine eye drops.
Anterior chamber depth demonstrated increase from baseline readings with Tropicamide and Homatropine eye drops, while lens thickness showed decrease from the baseline readings with both eye drops. Effect of both the eye drops on over all axial length and vitreous chamber length is statistically seen, but is clinically negligible and not significant.
Cycloplegia induced by 1% Tropicamide eye drops and 2% Homatropine eye drops has a significant measurable influence on anterior chamber depth and lens thickness, while vitreous chamber length and overall axial length demonstrated negligible statistical difference on A-Scan parameters of the normal phakic eyes.
一项前瞻性研究，以评估滴用1%复方托吡卡胺滴眼液和2%后马托品滴眼液前后有晶状体正常眼A超轴向参数的变化。
对76只眼在滴用1%复方托吡卡胺滴眼液散瞳前后以及28只眼在滴用2%后马托品滴眼液前后测量前房深度、晶状体厚度、玻璃体腔长度和眼轴长度。
使用复方托吡卡胺滴眼液和后马托品滴眼液后前房深度较基线读数增加，而两种滴眼液使用后晶状体厚度均较基线读数减少。两种滴眼液对整体眼轴长度和玻璃体腔长度的影响在统计学上可见，但临床上可忽略不计且不显著。
1%复方托吡卡胺滴眼液和2%后马托品滴眼液散瞳对前房深度和晶状体厚度有显著的可测量影响，而玻璃体腔长度和整体眼轴长度在正常有晶状体眼的A超参数上显示出可忽略不计的统计学差异。
