SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report Of Foreign Issuer

Pursuant To Rule 13a-16 Or 15d-16 of

the Securities Exchange Act of 1934

For the month of April 2003

ALCON, INC.

Bösch 69

P.O. Box 62

6331 Hünenberg, Switzerland

011-41-41-785-8888

(Address of principal executive offices)

[Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.]

Form 20-F x Form 40-F

[Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.]

Yes No x

Alcon, Inc. Revises Sales Presentation

In 2003, Alcon, Inc. revised its presentation of certain sales information to more closely reflect the manner in which it reviews its business. Alcon assesses sales performance by therapeutic category, rather than by sales from specific products. This presentation also reflects certain reclassifications of sales by category. The more significant changes include:

• Reclassifying sales of steroids from Other Pharmaceuticals to Infection/Inflammation Products,
• Reclassifying refractive service sales from Other Surgical to Refractive Products, and
• Reclassifying Viscoelastics and the remainder of Other Surgical to Cat/Vit Products.

For comparative purposes, the table below presents information for 2002 and 2001 in the revised format.

(in millions)	Q1		Q2		Q3		Q4		Full Year
	2002	2001	2002	2001	2002	2001	2002	2001	2002	2001
Infection/Inflammation Products	$ 108.6	$ 102.8	$ 116.5	$ 107.2	$ 109.9	$ 99.3	$ 111.0	$ 94.6	$ 446.0	$ 403.9
Glaucoma Products	80.3	67.0	89.6	67.2	87.2	68.6	92.5	73.3	349.6	276.1
Allergy Products	47.8	31.2	87.1	82.3	50.6	38.2	37.6	29.5	223.1	181.2
Otic Products	13.8	10.1	26.2	23.7	36.3	24.6	13.3	10.8	89.6	69.2
Other Pharmaceuticals/Rebates	(2.2)	3.0	(6.7)	(4.2)	(3.4)	(0.3)	(5.8)	(1.2)	(18.1)	(2.7)
Total Pharmaceuticals	248.3	214.1	312.7	276.2	280.6	230.4	248.6	207.0	1,090.2	927.7
IOLs	101.6	97.6	113.5	104.1	104.3	94.5	118.3	109.2	437.7	405.4
Cat/Vit Products	216.0	210.5	238.5	220.8	222.3	207.7	250.2	225.6	927.0	864.6
Refractive Products	19.8	16.7	19.4	26.4	17.9	23.6	16.7	21.0	73.8	87.7
Total Surgical	337.4	324.8	371.4	351.3	344.5	325.8	385.2	355.8	1,438.5	1,357.7
Contact Lens Disinfectants	70.4	63.1	68.4	65.4	68.2	69.5	68.2	62.6	275.2	260.6
Artificial Tears	24.2	24.7	27.1	24.7	24.0	24.8	23.9	22.3	99.2	96.5
Other	26.2	28.1	29.9	28.3	26.6	25.9	23.3	22.9	106.0	105.2
Total Consumer	120.8	115.9	125.4	118.4	118.8	120.2	115.4	107.8	480.4	462.3
Total Sales	$ 706.5	$ 654.8	$ 809.5	$ 745.9	$ 743.9	$ 676.4	$ 749.2	$ 670.6	$ 3,009.1	$ 2,747.7

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			Alcon, Inc.
			(Registrant)
Date	April 24, 2003	By	/s/ Guido Koller
			Name: Guido Koller
			Title: Senior Vice-President
Date	April 24, 2003	By	/s/ Martin Schneider
			Name: Martin Schneider
			Title: Attorney-in-Fact