The enterprise-wide sales presentation shown below incorporates both the revised presentation and the previous presentation for the three and nine months ended April 30, 2015 and 2014, respectively:

(Dollars in thousands)	Three Months Ended April 30, 2015		Three Months Ended April 30, 2014		Nine Months Ended April 30, 2015		Nine Months Ended April 30, 2014
Presentation based upon market
Net Sales
Ophthalmic ⁽¹⁾	$	11,137	$	8,744	$	30,646	$	26,873
Neurosurgery ⁽²⁾		7,762		7,277		22,675		19,522
Other ⁽³⁾		476		114		890		366
	$	19,375	$	16,135	$	54,211	$	46,761
Presentation based upon distribution
Net Sales
Ophthalmic⁽⁴⁾	$	8,134	$	8,494	$	25,092	$	25,730
OEM ⁽⁵⁾		11,022		7,383		28,492		20,355
Other ⁽⁶⁾		219		258		627		676
Total	$	19,375	$	16,135	$	54,211	$	46,761
Net Sales
Domestic	$	13,199	$	12,106	$	38,240	$	35,025
International		6,176		4,029		15,971		11,736
	$	19,375	$	16,135	$	54,211	$	46,761

(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 $966,000 from Alcon, Inc. is included in this category for the three and nine months ended April 30, 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 $966,000 from Alcon, Inc. is included in this category for the three and nine months ended April 30, 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.