I have no idea, except that the Boston scleral lens is completely customized to the patient in terms of fit, while other scleral lens are more standardized in fitting like regular contact lens so you do not get a perfect fit. Think of BFS as getting custom made clothes tailored to fit you, while most optometrists that provide sclerals are basically buying like buy clothes off the rack. (There are exceptions, the only other place that makes custom sclerals I've heard of is Dr. Gemoules in the US). You should find out if that optometrist makes custom sclerals.
But I think this would be a great question to directly ask Boston Foundation for Sight for the answer.
But I think this would be a great question to directly ask Boston Foundation for Sight for the answer.
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