[Clinical observation of polypoidal choroidal vasculopathy].

Objective: To observe the natural course and evaluate the prognostic factors influencing the follow-up visual acuity of polypoidal choroidal vasculopathy (PCV).

Methods: It was a retrospective case series. Forty-five consecutive patients (51 eyes) who were diagnosed with PCV by fundus photography, fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) were followed up with (11.

Angiographic leakage of polypoidal choroidal vasculopathy on indocyanine angiography.

Background: There is no detailed report about the angiographic leakage of polypoidal choroidal vasculopathy (PCV) lesions on indocyanine green (ICG) angiography. This study aimed to investigate the angiographic leakage of polypoidal lesions in PCV on ICG angiography.

Methods: One hundred and forty-four eyes of 137 patients diagnosed as PCV were prospectively observed.

[Changes of visual field and visual evoked potential in nasopharyngeal carcinoma patients after radiotherapy].

Background & Objective: Radiotherapy is the main treatment for nasopharyngeal carcinoma (NPC). The incidence of radiation-induced complications, especially radiation optic neuropathy (RON), increases along with prolonging survival time of the patients. This study was to investigate RON in NPC patients after irradiation by visual field and visual evoked potential (VEP) tests.

Impairment of optic path due to radiotherapy for nasopharyngeal carcinoma.

Purpose: To evaluate the impairment of optic path caused by radiotherapy for nasopharyngeal carcinoma (NPC).

Methods: Visual evoked potential was used to evaluate the functional impairment of optic path by an 8 MV linear accelerator or 60Co gamma-ray radiotherapy in 63 (23 women and 40 men) patients with nasopharyngeal carcinoma before radiotherapy, at the end of radiotherapy, 6 months and 1, 2 and 3 years after their radiotherapy respectively.

Results: In the female group, the latency of VEP elicited by the three types of elements significantly delayed 2 and 3 years after radiotherapy than that before radiotherapy, at the end of radiotherapy, 6 months and 1 year after radiotherapy; there were no significant difference among VEP amplitudes elicited by the three types of elements before and after radiotherapy.