Journal of the Korean Ophthalmological Society 2003;44(6):1254-1259.
Published online June 1, 2003.
Clinical Analysis of the Size of the Orbital Implant and Prosthesis in Eviscerated Patients.
Eui Young Lee, Jun Ho Choi, Se Hyun Baek
Department of Ophthalmology, Gachon Medical School, Ghil Medical Center, Inchon, Korea. shbaek@ghil.com
안구내용제거술에서 무안구 안와삽입물과 의안 크기의 임상적 고찰
이의영 ( Eui Young Lee ) , 최준호 ( Jun Ho Choi ) , 백세현 ( Se Hyun Baek )
Abstract
PURPOSE
This study evaluated whether the axial length of the fellow eye measured by A-scan biometry can be utilized for selecting the proper size of the orbital implant. METHODS: Thirty four eyes of 34 adult patients who had undergone eviscerations between March 2000 and May 2002 were included. We measured the axial length of the fellow eyes by A-scan preoperatively. Postoperatively, the central thickness and volume of ocular prosthesis were measured to determine the ideal size of prosthesis. RESULTS: Average diameter of the fellow eyes was 22.6mm. Average difference in diameter between the fellow eyes and orbital implants was 1.8mm among eyes with 20-22 mm in adults, and 3.8mm among eyes with 22-24mm. Average central thickness of the ocular prosthesis was 6.47 mm, and average volume was 2.2 ml. Complications occurred in 4 cases, and 2 of those cases were corrected by operations. CONCLUSIONS: Preoperative measurement of the diameter of the fellow eye using A-scan ultrasonography can be useful in selecting the size of the orbital implant before evisceration in adult patients. It also helped the selection of the proper sized ocular prosthesis and the prevention of many postoperative complications.
Key Words: A-scan;Evisceration;Ocular prosthesis;Orbital implants;Replacement ratio


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