Nineteen eyes of 18 patients with intraorbital angioma were studied by color Doppler ultrasonography and the results were compared to the diagnosis of CT (16 eyes), MRI (5 eyes) and pathology (5 eyes). Blood flow images in intraorbital angioma were detected in 15/19 eyes (78.95%), and blood flow spectrums were analyzed in 7/19 eyes (36.64%). It is suggested that color Doppler ultrasonography be helpful to the identification of the intraorbital angioma.

At 4Hz and 16Hz temporal frequencies and at a range of 3—37.8 cycles per degree (cpd) of spatial frequency which were divide into 12 grades, an instrument with a flickering sinusoid grate was used to measure the laser retina-visual cortex spatiotemporal visual modulation transfer function (S-TMTF) in patients with glaucoma. There were 34 cases (65 eyes) with early primary open-angle glaucoma (POAG), 18 cases (31 eyes) with moderate or late glaucoma and 19 cases (37 eyes) with suspect glaucoma (SG). In 6 months. 16 patients of SG were followed. The results showed that in patients with early POAG, abnormal S-TMTF values might occur in low frequency region, the abnormal values tended to be general in the middle frequency region, and in the high frequency region all the S-TMTF values were significantly lower than that of the control. In cases with SG, lowering of S-TMTF was seen in many frequency points above 9.5 cpd, but did not found in regions below 9.5 cpd. The S-TMTF values at 16 Hz were lower than that at 4 Hz in each corresponding spatial frequency, and with aggravation of the disease, the greatest discrepancy value appeared to be shifting from high to low frequency points. In the follow-up period, an early glaucomatous visual field change occurred in a female case with ocular hypertension. It is demonstrated that the S-TMTF value is of high sensitivity for diagnosis of POAG, but it is difficult to screen the specific diagnostic frequency point and its critical value.

Herpes simplex keratitis models were created with healthy New Zealand rabbits. During the quiescent period, one group of the rabbits were performed autograft penetrating keratoplasty and another group cross penetrating keratoplasty with noninfeeted rabbits. After removal of the sutures, epinephrine iontophoresis was done for reactivation of the virus, and all the corneal buttons were stained positive of HSV-1 antigens. Transmission electron microscopy revealed signs of viral infection and culture of corneal graft keratoeytes also demonstrated HSV-1 infection, suggesting that the cornea was a site of HSV-1 latency and source of recurrence.

92 comfirmed cases of malignant glaucoma hospitalized from 1979 to 1989 at Zhongshan Ophthalmic Center are retrospectively studied. The risk factors and new clinical discoveries in its pathogenesis are analyzed with comments. The developments in the managements of the disease during the 10 years are summerized with recommendation of principles for its diagnosis and treatment. The authors also put forth suggestions with regard to the nomenclature and classification of malignant glaucoma.

With electronystagmography (ENG), various tests were carried out in 16 patients of congenital and 10 patients of acquired nystagmus. The results indicated that the two groups manifested distinct differences in gaze nystagmus, responses of saeeade and eye tracking, and optokinetic nystagmus. It is believed that the ENG can help make objective differential diagnoses between the two kinds of nystagmus.

213 eyes (138 cases)with diabetic retinopathy (DR) were treated with laser panretinal photoeoagulation(PRP)and followed up for 3～72 months, during which time the visual acuity improved in 70 eyes (32.9％), remained unaltered in 77 eyes(36.1％), and diminished in 66 eyes (31％). The results indicated that PRP for the treatment of DR was effective and safe, with few complications. Factors affecting performance of the technique and visual prognosis were discussed.

39 cases (49 eyes) with retinal periphlebitis (Eales' disease) were treated by laser photocoagulation and followed up for 3～64 months, averaging 17 months. The visual acuity improved in 29 eyes (59.1％), remained unaltered 15 eyes (30.7％),and diminished in 5 eyes (10.2％). The results showed that laser photocoagulation was effective and safe for the treatment of Eales' disease. The importance of early diagnosis, early treatment, periodical follow-up and the use of corticosteroids were discussed.

The platelet aggregation and release reaction, the haemostatic factors and fibrinolytic activity were measured in 36 patients with early retinal vein occlusion (RVO) and 20 control subjects. The mean levels of platelet aggregation, plasma fibronection, factor Ⅷ antigen and plasminogen were significantly higher in the patients than in the controls. These findings showed that the blood hypercoagulant state was present in patients with RVO, and these abnormalities in blood coagulation could play an important role in the onset and development of RVO and its ischaemic complications.

17 cases (18 eyes)of paralytic esotropia were treated with injection of botulinum toxin A(BTA) into extraocular muscles. The maximum therapeutic paralytic effect occurred in 7～10 days following the injection and the maximum correction of strabismus was 50~△. The cases were followed up 4～20 weeks and 5 cases attained eventual binocular vision. No systemic complications occured. The authors believe that the injection of BTA may be an alternative to treatment for some cases of strabismus.

Extracapsular cataract extraction (ECCE) with primary posterior chamber intraocular lens (IOL) implantation was performed on 31 cases (38 eyes)of cataract with high myopia of axial length over 26mm and preoperative retinal visual acuity of ≥0.5. They were followed up for 3～26 months. Postoperative visual acuity s. c. was ≥0.5 in 65.8％ of the eyes and visual acuity c.c. was ≥0.5 in 92.1％ and 1.0～1.5 in 52.6％ of the eyes. The results showed that it was fairly possible for cataract patients with high myopia to obtain normal vision after ECCE and IOL implantation when the preoperative retinal acuity was ≥0.5. The calculation of lens power and surgical procedures were described, and the indications for the operation and the managements of complications were discussed as well.