The enterprise-wide sales presentation shown below incorporates both the revised presentation and the previous presentation for the three and six months ended January 31, 2015 and 2014, respectively:

	Three Months Ended January 31, 2015		Three Months Ended January 31, 2014		Six Months Ended January 31, 2015		Six Months Ended January 31, 2014
Presentation based upon market
Net Sales
Ophthalmic ⁽¹⁾	$	9,985	$	9,165	$	19,510	$	18,129
Neurosurgery ⁽²⁾		7,894		5,788		14,912		12,245
Other ⁽³⁾		310		143		414		252
	$	18,189	$	15,096	$	34,836	$	30,626
Presentation based upon distribution
Net Sales
Ophthalmic⁽⁴⁾	$	8,228	$	8,739	$	16,958	$	17,237
OEM ⁽⁵⁾		9,784		6,123		17,470		12,971
Other ⁽⁶⁾		177		234		408		418
Total	$	18,189	$	15,096	$	34,836	$	30,626
Net Sales
Domestic	$	12,887	$	11,050	$	25,041	$	22,919
International		5,302		4,046		9,795		7,707
	$	18,189	$	15,096	$	34,836	$	30,626

(1)

Net sales from Ophthalmic represent all sales of ophthalmic devices from direct sales representatives, distribution partners and OEMs. Recognition of deferred revenue of $322,000 and $644,000 from Alcon, Inc. is included in this category for the three and six months ended January 31, 2015 and 2014, respectively.

(2)

Net sales from Neurosurgery represent sales of electrosurgery generators, disposable bipolar forceps and related accessories and royalties from Codman, multi-channel generators, disposable ultrasonic tips and related accessories to Stryker and certain neurosurgery disposables sold through distribution. Many of the products that the Company sells to its neurosurgery OEM customers are shipped to their non-U.S. customers in various countries around the world, but are included in the Company’s domestic revenues.

(3)

Other net sales represent all sales of aesthetic devices, and other miscellaneous revenues.

(4)

Net sales from Ophthalmic represent sales of ophthalmic devices from direct sales representatives and distribution partners.

(5)

Net sales from OEM represent sales of electrosurgery generators, disposable bipolar forceps and related accessories and royalties from Codman, multi-channel generators, disposable ultrasonic tips and related accessories to Stryker and sales of certain disposable products. Recognition of deferred revenues of $322,000 and $644,000 from Alcon, Inc. is included in this category for the three and six months ended January 31, 2015 and 2014, respectively. Many of the products that the Company sells to its neurosurgery OEM customers are shipped to their non-U.S. customers in various countries around the world, but are included in the Company’s domestic revenues.

(6)

Other net sales represent direct neurosurgery revenues, and other miscellaneous revenues.