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Gonioscopic view and hand position in angle surgery (trabectome shown). After engagement and SC entry at the nasal TM slightly off to the left, ablation is continued for 90° while the lens is rotated in the same direction and the eye (right eye shown) is tilted towards the brow. The same is repeated for the opposite direction. Gonioscopic prism power is increased by lifting the lens off the cornea to float in saline at the final clock hours.
