Silk industry of Cheshire Peak District. Fast flowing streams forming the River Dane, River Bollin, River Dean and River Goyt provided a moist environment and potential power to drive waterwheels in mills. The coach road from Derby to Manchester passes through, or near to each of the prominent silk towns, and later in 1831 Macclesfield Canal joined Congleton, Macclesfield and Bollington to the Trent and Mersey Canal and the Midlands and the seaports. Silk is a naturally produced fibre obtained from many species of the silk moth. In 1700 the favoured silk was produced by a moth (Bombyx mori), that used it to spin
Ocular larva migrans Ocular larva migrans Ocular larva migrans (OLM), also known as ocular toxocariasis, is the ocular form of the larva migrans syndrome that occurs when "Toxocara canis" (dog roundworm) larvae invade the eye. They may be associated with visceral larva migrans. Unilateral visual disturbances, strabismus, and eye pain are the most common presenting symptoms. The disease presents with an eosinophilic granulomatous mass, most commonly in the posterior pole of the retina. The granulmatous mass develops around the entrapped larva, in an attempt to contain the spread of the larva. ELISA testing of intraocular fluids has been demonstrated to be of great