A Clinical Study of Central Retinal Vein Occlusion

Central retinal vein occlusion(CRVO) is a common retinal vascular disorder with potentially blinding complications. Author evaluated the 21 cases of central vein occlusion in aspects of age, laterality, change of visual acuity, axial length, associated diseases and complications. The results were as follows; 1. The patients were comprised of 8 males and 13 females and the average age was 49.2 +/- 12.5 years. 2. The left eye was affected more than the right eye. 3. The initial visual acuity was below 0.1 in 76.2%. 4. The mean axial length of the aftected eyes(23.03 +/- 0.69mm) was shorter than that of their control group(23.53 +/- 0.69mm) (P=0.01). 5. The most common associated disease was hypertension (33.3%) and the next was diabetes mellitus (9.5%) and arteriosclerosis (9.5%). 6. The most common complication was cystoid macular edema (42.9%). Retinal and disc neovascularization was occmed in 19.4%.

Spontaneous Disappearance of A Traumatic Macular Hole

A Macular hole may change in size of the hole; may increase in size with time and an epiretinal membrane may form. Rarely, a rhegmatogenous retinal detachment may occur with time and long term visual acuity usually remains stable or progressively worse. But to our knowledge spontaneous disappearance of a macular hole caused by development of an epiretinal membrane with improvement in vision rarely occurs. The traumatic, full-thickness macular hole in a 15-year-old man during 3 month follow-up period, changed its biomicroscopic appearance and fluorescein angiographic finding. Furthermore, visual acuity showed some improvement. The authors believe this spontaneous disappearance of macular hole is probably occured as a result of epiretinal membrane formation.