Cataract surgery clinics, ophthalmology departments and optometry practices use the PM-300 to measure the eye before lens surgery. Ophthalmologists, optometrists and ophthalmic technicians operate it, and the readings inform intraocular lens power selection for phakic, aphakic and pseudophakic eyes.
The PM-300 suits services that want the whole examination in one instrument. A 10 MHz contact probe takes axial length from 15 to 40 mm, anterior chamber depth, lens thickness and vitreous length, and the IOL calculator, patient memory and thermal printer sit in the same 1.7 kg unit. Manual, Auto1 and Auto2 modes let the operator take a single measurement or a continuous series.
Dense cataract is selected as an eye type, and speeds adjust for PMMA, acrylic and silicone IOLs. Gain runs from 0 to 99 dB with automatic gain control, and Echoes View supports signal analysis. Haigis, Hoffer-Q, Holladay, Binkhorst, SRK-II and SRK-T formulas are available; two lenses are calculated at once, and the A constant, ACD and SF can be adjusted.
Five programmable user profiles keep each operator's settings, and thousands of patient files are stored, with export and backup by USB flash drive. Optional gel-free pachymetry measures 200 to 1,300 µm with an 11 MHz probe and stores up to 33 corneal points. The unit sits on a stable table in a consulting room, and its supply is 100–240 V AC at 50/60 Hz and 45 VA maximum. A large colour TFT touchscreen is operated with a stylus; a USB port and a mouse port are fitted, and an integrated thermal graphic printer gives a printed record for the patient file.