Ghai, Ashwani Kumar, <br/><br/>
Refraction, dispensing optics and opthalmic procedures / 
Ashwani Kumar Ghai ; forewards, J. L. Goyal, J. P. Chugh. 
 - xvi, 158 pages :  illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9789350901892  RM66.70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eye--Accomodation and refraction.<br/>Optics, Physiological.<br/>Refraction, Ocular.