The transilluminators described here are not new in the field of ophthalmic instruments. They are a modification of those made by a European manufacturer of instruments.
Since lucite1 has optical properties similar to those of quartz, it lends itself well to the transmission of light. It has the disadvantage, however, of being destroyed or injured by high temperatures and various chemicals, but it is easily molded and worked with.
The transilluminators described here are each approximately 3 inches (7.6 cm.) long and taper from 13 mm. at their base, where light is admitted, to 1.5 mm. at its point of exit. One of the transilluminators is
Block HM. OCULAR TRANSILLUMINATORS MADE OF LUCITE. Arch Ophthalmol. 1940;23(3):627–628. doi:10.1001/archopht.1940.00860130693022