The Sims' vaginal speculum aided in vaginal examination and surgery. Vaginal speculum examination was performed, and pH was measured. A vaginal speculum and a soft cup may also be used. A vaginal speculum may be used for this purpose. In veterinary medicine, a McPherson Speculum can be used for oral examination. An eye speculum is inserted to keep the eyelids open. He is also remembered for inventing Sims' speculum, Sims' sigmoid catheter, and the Sims' position. The eyelid is held open with a speculum to minimize blinking during surgery. It had a diameter, focal length speculum metal objective mirror. Both sexes have sky-blue wing coverts, a green speculum, and yellow legs. Mirror blanks were poured from Speculum metal, a mix of copper and tin. Rest of body is greyish brown with a bright green speculum. Use of a lid speculum is no longer essential. It was difficult to grind the speculum metal to a regular curvature. Rosse's telescopes used cast speculum metal ground parabolically and polished.