Ophthalmology & Optometry/diopters in 1/4 increments


I've worn contact lenses for years and have a very high Rx. The right eye is well over a minus 6. Can you tell me why most or all contact lens companies don't make lenses in 1/4 diopter increments over -6, just 1/2, but do under -6?

That's a good question. I've been asking that for years. My suggestion is to call the customer service department of the major contact lens Companies Directly like Johnson&Johnson, Ciba Vision, Cooper, Bausch&Lomb, etc. Good luck

The supposition is that it is just not profitable to produce contacts in 0.25 D increments after 6.00d as 98-99% population fall into the lower power ranges.  

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Any and all questions with regard to ocular ailments, eye diseases as cataracts, glaucoma, macular degeneration, diabetic retinopathy, etc , eye and visual sympomatology, eyeglasses, contact lenses, low or subnormal vision, pediatric vision conditions,and special and unique ailments will be discussed.


36 years of clinical experience in opticianry and therapeutic optometry. Still in private practice with special interests in vision conditions, diagnosing and treating ocular ailments, prescibing treatment plans which include medicine, eyeglasses, and contact lenses primarily. Although surgery is not within the realm of my area of expertise, I co-manage many pre and post -op surgical cases which include Lasik and PRK procedures.

New Jersey Society of Optometric Physicians American Optometric Association

B.A.,1968, Hunter College of the City University of New York B.S.,1970, Pennsylvania College of Optometry O.D.,1973, Pennsylvania College of Optometry Therapeutic Pharmaceutical Administration Certification, New Jersey 1992

Awards and Honors
Clinical Efficiency Award, 1973, Pennsylvaania College of Optometry

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