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前房积血原因包括:外伤、手术、新生物、血管异常、新生血管形成及炎症眼的眼压突然降低等。一、前房积血的分类非手术的外伤性前房积血的分类:1.按受伤种类分为:眼球挫伤,撕裂伤或破裂伤所致的前房积血;2.按出血来源:虹膜括约肌或虹膜基质损伤,虹膜根部断离,睫状体面损伤,睫状体分离,血管异常或新生血管形成,玻璃体积血溢入前房。3.按出血性质分为:原发性,继发性,连续性。4.按出血量分为:一度前房积血(少于1/3前房),二度前房积血(1/3～1/2前房),三度前房积血(多于1/2前房)。5.按出血持续时间分为:急性期(1～7天)、亚急性期(7～14天)、
Causes of anterior chamber hemorrhage include: trauma, surgery, neoplasms, vascular abnormalities, neovascularization and sudden drop in intraocular pressure in inflammatory eyes. First, the classification of anterior chamber hemorrhage Classification of non-surgical traumatic hyphema: 1 according to the type of injury is divided into: contusion, laceration or rupture of the anterior chamber hemorrhage; 2 according to the source of bleeding : Iris sphincter or iris stromal injury, iris root off, ciliary body surface damage, ciliary body separation, vascular abnormalities or neovascularization, vitreous hemorrhage into the anterior chamber. According to the nature of bleeding is divided into: primary, secondary, continuity. 4. According to the amount of bleeding is divided into: once the anterior chamber hemorrhage (less than 1/3 anterior chamber), second hyphema (1/3 to 1/2 anterior chamber), third degree hyphema (more than 1/2 anterior chamber). According to the duration of bleeding divided into: acute (1 to 7 days), subacute (7 to 14 days),