Original articleAnterior Segment Variations with Age and Accommodation Demonstrated by Slit-Lamp–Adapted Optical Coherence Tomography
Section snippets
Subjects and Methods
This study was supported through a cooperative agreement with the Optometry Clinic and Outpatient Department of Zhongshan Ophthalmic Center in Guangzhou, China. The protocol and informed consent forms were reviewed and approved by the institutional review board/ethics committee of the Sun Yat-sen University, and a written informed consent form was given to each study participant. The study was conducted in accordance with the Declaration of Helsinki and the ethical standards of the local ethics
Anterior Chamber Width
The mean H-ACW and V-ACW were recorded (Table 2). To further statistically analyze H-ACW and V-ACW, a paired t test was performed between them and significant differences were found (t = 4.737, P = 0.000). The mean value of V-ACW was 0.16 mm larger than H-ACW. However, variation of ACW did not seem to depend on age, although ACW was found to be smaller in older subjects (>40 years), but this was not significant.
Anterior Chamber Depth
The mean unaccommodated ACD was also measured (Table 2). The relationship between
Discussion
Surgical correction of high ametropia is still a challenging and controversial issue. Implantation of pIOLs is an emerging technology for the treatment of high ametropia. However, pIOLs have inherent advantages and unique potential complications. The major concerns with pIOLs are their intraocular positions and how they will interact with anterior segment structures (e.g., anterior chamber angle, corneal endothelium, and crystalline lens). However, it is well known that the geometry of the
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Manuscript no. 2009-1282.
Drs. Yan and Lin contributed equally to this work.
Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Supported by National Natural Science Foundation of China (30471851), Guangdong Provincial Science and Technology program (2005B30901006, 2008B060600026, and 2009B060700089), Cataract Team Program Foundation and Youth Innovation (QN-09, Haotian Lin) Foundation of State Key Laboratory of Ophthalmology.