The eyes of rhesus monkeys were exposed to suprathreshold Q-switched laser pulses at wavelengths of 440, 530 and 694 nm. The energy level which resulted in hemorrhaging following foveal exposure was determined for the different wavelengths. A comparison of the extent and type of retinal damage between foveal and extramacula exposure sites was obtained using both assessment with the fundus camera and histological evaluation of the lesions.
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Gibbons et al. (1978) studied this question.