** Shares of ophthalmic medical device company Rxsight RXST.O fall 23.8% to $19.9 premarket

** Co late on Wednesday lowered its annual revenue forecast to range between $160.0 million and $175.0 million from a previous range of $185 million to $197 million

** RXST expects preliminary Q1 revenue of $37.9 million, lower than analysts' average estimate of $39.59 million as per data compiled by LSEG

** 8 out of 10 brokerages rate the stock "buy" or higher, 2 rate "hold" and their median PT is $43 - LSEG data

** Up to last close, RXST stock has fallen 93% in the past 12 months

(Reporting by Padmanabhan Ananthan)

((Padmanabhan.Ananthan@thomsonreuters.com))