■在色素分散综合征中经常观察到前房中色素的释放,以前晶状体囊和后晶状体囊双侧色素沉积为特征的常染色体显性疾病,晶状体的小带,小梁网,和角膜内皮,除了径向,虹膜中周辐状透照缺陷[JAyubMedCollAbbottabad.2017;29(3):412-414和OptomVisSci。1995年;72(10):756-762]。晶状体前表面的色素沉着也与眼内炎症有关。假性剥脱综合征,铁质沉着症,抗精神病药物的使用,和小扁豆膜的残余物[BrJOthalmol.1998年;82(11):1344]。
一位23岁的女性到我们的眼科诊所就诊,主诉右眼轻度视力模糊,并询问屈光手术。患者否认有眼部炎症史,创伤,手术,或使用局部或全身药物。右眼眼前段的裂隙灯检查在正常范围内,除了晶状体前囊显示融合的色素沉积物在瞳孔轴上呈星状,而左眼检查完全在正常范围内。双眼后段的眼科检查正常。根据她以前的眼科病史和右眼的裂隙灯检查,诊断为单侧先天性双豆状色素沉着。
■先天性双凸透镜色素沉着是一种罕见的良性实体,没有手术适应症,对光学矫正具有相对良好的视觉反应。认识到这种罕见的良性疾病将增加眼科医生对眼部色素沉着的鉴别,并避免对更多潜在进行性疾病如色素性青光眼进行不必要的关注和随访。
UNASSIGNED: Release of pigments in the anterior chamber is frequently observed in pigment dispersion syndrome, an autosomal dominant disorder marked by bilateral pigment deposition on the anterior and possibly posterior lens capsule, zonules of the lens, trabecular meshwork, and corneal endothelium, in addition to radial, spoke-like transillumination defects in the mid peripheral iris [J Ayub Med Coll Abbottabad. 2017;29(3):412-414 and Optom Vis Sci. 1995;72(10):756-762]. Pigmentation of the anterior lens surface has also been associated with intraocular inflammation, pseudoexfoliation syndrome, siderosis, antipsychotic medication usage, and remnants of the tunica vasculosa lentis [Br J Ophthalmol. 1998;82(11):1344].
UNASSIGNED: A 23-year-old female presented to our eye clinic with chief complaint of mild blurring of vision in the right eye and inquired about refractive surgery. The patient denied any previous history of ocular inflammation, trauma, surgery, or use of topical or systemic medications. Slit-lamp examination of the right eye anterior segment was within normal limits except for the crystalline lens anterior capsular which showed confluent pigment deposits stellate in shape over the pupillary axis, whereas left eye examination was completely within normal limits. Ophthalmic examination of the posterior segment was normal in both eyes. Based on her previous ophthalmic history and slit-lamp examination of the right eye, a diagnosis of unilateral congenital lenticular pigmentation was made.
UNASSIGNED: Congenital lenticular pigmentation is a rare benign entity carrying no surgical indications with a relatively good visual response to optical correction. Recognition of this rare benign condition would add to the ophthalmologist\'s differential of ocular pigmentation and avoid unnecessary concern and follow-up in more potentially progressive disorders such as pigmentary glaucoma.