Lens thickness, anterior chamber depth and axial lenght changes in patients with age-related cataract

Abstract

Lens thickness, anterior chamber depth and axial lenght changes in patients with age-related cataractPurpose: To assess lens thickness, anterior chamber depth and axial length in patients with age-relatedcataract using ultrasound biometry and compare with the normal eyes. Materials And Methods: Patientswith age-related cataract were included in this retrospective study. A group of elderly subjects with a clearlens and normal visual acuity served as the control group. Lens thickness, anterior chamber depth and axiallength were evaluated by using ultrasound biometry. Results: Seventy nine patients with age-related cataract(116 eyes) were evaluated. The control group comprised 40 eyes (20 subjects) with a clear lens and normalvisual acuity. There were significant differences in lens thickness and anterior chamber depth between agerelated cataract and clear lenses. Lens thickness was significantly greater in clear lenses when comparedwith age-related cataract (p<0.01). There were statistically significant differences in lens thickness accordingto different types of cataract (p<0.05). Lens thickness was significantly less in posterior subcapsular cataractthan nuclear and karma types of cataract (p=0.021; p=0.016). The anterior chamber depth decreased morein eyes with cortical cataract although there were not statistically significant differences in axial length andanterior chamber depth according to different types of cataract. The anterior chamber depth was inverselycorrelated with lens thickness (r=-0.05; p=0.001). Conclusions: Lens thickness was significantly greater inclear lenses when compared with age-related cataract. Lens thickness was significantly less in posteriorsubcapsular cataract than nuclear and karma types of cataract. A significant decrease in anterior chamberdepth was found with the increase in lens thickness

Keywords

• Cataract
• crystalline lens
• ultrasonography

Senil Kataraktı Olan Hastalarda Lens Kalınlığı, Ön Kamara Derinliği ve Aksiyel Uzunluk Değişiklikleri

Abstract

AMAÇ: Senil kataraktı olan hastalarda, ultrason biyometri kullanarak, lens kalınlığını (LK), ön kamara derinliğini ve aksiyel uzunluğu değerlendirmek ve normal gözlerle karşılaştırmak. Saydam lensi ve normal görme keskinliği olan yaşlı kişilerden oluşan bir grup kontrol grubu olarak kullanıldı. Lens kalınlığı, ön kamara derinliği ve aksiyel uzunluk ultrason biyometri kullanarak değerlendirildi. BULGULAR: Senil kataraktı olan 79 hasta (116 göz) değerlendirildi. Kontrol grubu saydam lensi olan ve normal görme keskinliğine sahip 40 gözden (20 kişi) oluşmaktaydı. Senil katarakt ve saydam lensler arasında lens kalınlığı ve ön kamara derinliğinde anlamlı farklar vardı. Lens kalınlığı, senil katarakt ile karşılaştırıldığında, saydam lenslerde anlamlı olarak daha fazlaydı (p<0.01). Lens kalınlıkları arasında katarakt tipine göre istatistiksel olarak anlamlı farklılık bulunmaktadır (p<0.05). Lens kalınlığı, arka subkapsüler kataraktta, nükleer katarakt ve karma tipte katarakttan anlamlı şekilde düşüktür (p=0.021; p=0.016). Ön kamara derinliği ve aksiyel uzunluk arasında katarakt tipine göre istatistiksel olarak anlamlı farklılık bulunmamasına rağmen kortikal kataraktta ön kamara derinliği daha azalmıştır. Ön kamara derinliği ile lens kalınlığı arasında negatif yönlü ilişki bulunmaktadır (r=-0.05; p=0.001). TARTIŞMA: Lens kalınlığı, senil katarakt ile karşılaştırıldığında, saydam lenslerde anlamlı olarak daha fazlaydı. Lens kalınlığı arka subkapsüler kataraktta, nükleer ve mix tipte katarakttan anlamlı şekilde düşüktür. Lens kalınlığında artışla birlikte ön kamara derinliğinde anlamlı bir azalma olduğu bulunmuştur.

Keywords

• Katarakt
• kristalin lens
• ultrasonografi

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