CA1311637C - Apparatus and method for self-examination of the eye and surrounding facial areas - Google Patents
Apparatus and method for self-examination of the eye and surrounding facial areasInfo
- Publication number
- CA1311637C CA1311637C CA000564426A CA564426A CA1311637C CA 1311637 C CA1311637 C CA 1311637C CA 000564426 A CA000564426 A CA 000564426A CA 564426 A CA564426 A CA 564426A CA 1311637 C CA1311637 C CA 1311637C
- Authority
- CA
- Canada
- Prior art keywords
- eye
- user
- light
- examination
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
ABSTRACT OF THE DISCLOSURE
A self-examination apparatus for the eye and the surrounding facial area is described in which a lens supported by housing can be moved with relation to the observer to provide a detailed or amplified image of the eye. The housing includes a substantially extended member for preventing sunlight from inadvertently being reflected off the lens into the observer's eye. The examination system further includes a self-illumination system that can provide the illumination when ambient conditions will not provide sufficient illumination for self-examination.
A self-examination apparatus for the eye and the surrounding facial area is described in which a lens supported by housing can be moved with relation to the observer to provide a detailed or amplified image of the eye. The housing includes a substantially extended member for preventing sunlight from inadvertently being reflected off the lens into the observer's eye. The examination system further includes a self-illumination system that can provide the illumination when ambient conditions will not provide sufficient illumination for self-examination.
Description
13~-~6;~7 rhis inventian relatad generally to optical ~ystems and, mor~ particularly~ to an optical system for detailed self~
analysis of the eye and surrounding region~ of the face.
It ha~ been known in the prlor art to examine the eye and surrounding area by use of a mirror. However~ it has been found that the use of an ordinary mirror for such examination i~ not suitable for detailed investigation lnvolving the ~ye, particularly with respect to the use of contact lenses. For the per~on who U5Q5 a Lontact lens, it is n~cessary to appraise the accuracy of the positioning of the lens ov~r the cornea to visualize the pre~ence of absence of any air bubbles, dirt particles, eye lashes, QtC. ~ that may cau~e discomfort~
vi5ual ize the presence or absence of any fold~ or tears of the soft lens or any fractures or defects in a hard contact lens, ~nd ad3ust the position of th~ so-called bifocal contact lens~ which , ~
require6 th~t a specific portion of the lens be situated over the luwer par~ o~ ~he cornea at all tlmes~ Such actiYity requires a c;l~er e~aminatlon~ of the Qyeball than ha~ typ~ically been available through the use of~an ordinary mirror.
It has~beQn~known in the prior art to use a c~ncave lens for t~e entiro facial e~amination. Such lenses are typically :
131 16~7 found in th~ dressing areas and can b~ used for the application of cosmetics and for other ~ctivity requiring a somewhat more detailed vi~ual image of the facial r~gion than can be provided by use of a mirror. Typically, however. ~uch concave lenses have not b~en satisfactory to provide a det~iled examination of the specific area such as the area of the eye. In addition~ such lenses have typically been fairly large and therÆfore have not been suitably portable. ~l~o, th~ focal lengths of said lenses do not permit clo~e ~xamination of the eye.
It is therefore an object of the present invention to provide an optical 5y~tem that i~ ea~ily portablQ and which can be used to provide a detailed self-examination of the are~ of the eye or th~ ~urrounding facial regions. In addition, it i5 desirable to provide a self-examination instrument that does not rely on ambient light and yet can protect again~t inadvertent focussiny of direct sunlight to the eye or other parts of the face and body.
.
It is therefore an object of the present invention to provide apparatu~ and method for detailed examination of the eye and surrounding facial regions.
It i5 a more particular object of the present invention to provide an apparatus for detailed examination o~ the area of the eye that lncludes a lens sy~tem for close examination of the view aroa.
It 15 a more particular object of the prF~ent invention to ~ ' ii- ?,~
,' ~ ' 131 ~637 provide apparatu~ and method for detailed examination of the area of the face and the vicinity o~ the eye that provides a self-contained source of illumination.
It is yet another object of the present invention to provide an apparatus and method for detailed self-examination in the vicinity of the eye that can protect against inadvertent exposure to direct çunlight.
The aforementioned and other object6 of the present invention are accomplished, according to the present invention.
by providing a housing that holds a lens. The lens can be positioned by the user to provide a detailed image to the user of the area under examination. In addition. the holder ha~ a surface extending beyond the lens çurface whith minimi2ed the risk of reflection of direct sunlight into the eye. The holder also includefi a lamp and battery system along with a switch for activating and deactivating the lamp that provides illumination of the area under examination.
These and other features of the present invention will be understood upDn reading of the following descriptian along wlth the drawingsn In the accompanying drawings:
Figure 1 is a schematic representation of the use of a lens for d~tailed eKamlnation.
Figure 2 is a perspective view of the sel~-examination apparatus of the present invention.
~ Igure 3 is a cross-section view, taken along line 3-3 of : 3 . .
. st~, S.~
~ `
~ .
- ' ~ , . . .
.
Figure 29 of ~he apparatus according to the present invention for e~amination of the area of the eye.
Figure 4 is a front view of the apparatus for facial self-examination of the present invention.
Figure S is a view further 6howing the apparatus of the present invention in use.
Figure h is a perspective view showing a partial cutaway showing the ~lements of the pre~ent invention with a convex lens reflecting surface.
Figure 7 is a cross-section view, taken along line 7-7 of Figure 6, showing a convex lens reflecting surface arrangement of the present invention.
Referring first to Figure 1 and Figure 5, the basic optical configuratlon of the ~elf-examination apparatus of the present invention, generally referred to by reference number 1, is shown in use. Th~ eye 5 uses a lens system 10 that includes a reflecting concave surface 11 or any other type of re-Flecting surface 1~, such as conve~ surface 12 shown in Figures ~ and 7~
~y varying the position of the ~ye 5 and the lens system 10, a close visualization of the image of the eye 5 can be obtained.
It will be clear that the radius of curvature of the concave surface 11, for example, will determine the optimum viewing distance of the eye ~for self-examination of the eye. Other ref}ective convex lens surface 12~ or the like, may be used :
., ~ . .
:
~ . ' ' ,' ~: ~
131 16;~7 and having similar results as the above-discussed concave ~urface 11.
Referring next to Figure Z and Figure 69 there is shown, in perspective views, the self~examination apparatu~ 1 of the pr~sent invention~ including the optical syste~ and associated apparatus. The apparatus comprises a housing 20 that includes an outer surfac~ 2Z and switch Z1 positioned on the outer surface 22. The concave ¢urface 11, (see Figure 2)~ or other reflecting lens surface 12, (see Figure ~), i5 positioned such that a highly reflective inner wall 23 extends oeyond the lens ~ystem.
Figure 3 shows a cross-sectional view taken along the line indicated 3-3 in Figure 2, wherein lens syste~ 10 is shown as a concave reflective surface 11. Similarly, Figure 7 show~ a cross-sectional view taken along the line indicatQd 7-7 in Figure ~, wherein len6 ~ystem 10 is shown as a convex reflectivP lens surface 12. FigurQs ~ and 7 further showing wall portion 23 o~
housing 20 extending well beyond lens system 10. Shown als~ in Figures 3 and 7 i5 len~ system 10 mounted on a transparent ~ember 30 and having lightbulb 32 being located there behind lens system 10 in a highly reflective chamber 31. The interior of the housing behind the reflecting chamber 31 includes batteries 33 and associated electrical couplings 28 and sprinys 29 for mounting the batteries 33 and for coupling the batterie6 33 and thQ light bulb 32 with switch 21. Through switch 21, the light bulb 32 can be activated as needed.
Referring next to Figure 4, a front view of the self-;
;' examination apparatus 1 i5 shown. The outer surface of the . ~
: ~: ' , .:
.
.
housing i5 22, the inner surf~ce of th~ extended region of thehousing i~ ~hown ~5 23, while the lens system 10 and the transparent member ~0 are po6itioned in the interior of the e~tended portion 23. ~lso shown is switoh 21 for activating the light bulb 3Z.
The self-examination apparatus 1 is adapted to have a reflecting surf~ce 11, 12 of the lens system (preferably oonCavQ, although other reflecting shapes may be used a~ previously discussed) by which the eye 5 can seQ an exquisitely detailed version of itçelf by looking into the lens system 10. The apparatu~ 1 includeç a shield Z3 that pr~vents direct sunllght from inadvertently striking the reflecting surface 11, lZ and being reflected toward the region of the eye 5, possibly damaging the eye 5. In addition, th~ self-examination app~ratus 1 has an independent light source (e.g., lightbulb 32) so that in low levels of ambient light~ the u~er will not be viewing the image at a low level of illumlnation. The lightbulb 32 i5 adapted to provide light that exits from the surface 31 of the lamp chamber through the transparent member 30 and forwardly onto the region of the eye ~5 well as onto the extended wall portions 23. The extended wall portions 23 of the housing 20 are highly reflective 50 that a large percentage of the light i5 projected forward and into the region of the eye 5.
It wi~l be clear to those skllled in thæ art that the r~flective surface li. 12 is located on the outside of lens system 10 of th~ preferred embodiment. Howover~ said reflectivQ
b ' `; ` ` ' :
lSl 16~7 surface 11, 12 can be located elsewh~re in the lens system 10.
Q use of the self-e~amination apparatus 1 previously discussed9 is to assist people in adjusting contac~ lenses.
~ecause of the nature of thæ contact lens, as well ~s its small size, the present invention proVidQs an i~proved method fDr manipulation uf çaid cont~ct lens.
In addition, the self-examination apparatus 1 h~s further applic~tions tD ophthalmological and related activities in which a patient can be expected to pro~ide sel-f-examination. The apparatu~ 1 permits the user to see in detail the characteristics of the cornea and the conjutiva, the anterior chamber, the iris pupil, lens and surrounding tissue. ~lso various parts of the eyelids and as~ociated s~ructures can be examined. Examples of further uses can be visualization of the location of eye damage produced by a foreign ob3ect or examination of changes related to inflammatory or infectious diseases of the eyes and surrounding ti~sues and evolution and progression disQases of the lenses such as cataracts. In addition, many useful applications can be derived in identifying and monitoring changes related to therapeutic modalities as they affect the eye and the surrounding i55ue5. The changes produced by therapy including surgical therapy of various diseases and tumorous condition o~ the eyes can be monitored by the patient. Th~ device can be of as6istance for patient in seeing details of the results of plastic surgery ~and other changes in the vicinity of the eye such as reconstruc~ive pro~edures.
, The present invention also permits a close inspection of the : ~ 7 , .
:: . . : . . . - . -, -131 16:~7 eyelids and surrounding areas that can be use to insure the correct usage of makeup and similar modalities of said surrounding areas and to insurQ complete removal of makeup after cleaning or wa~hing of the area. Thusl the ~elf-examination apparatus 1 can be eçpecially important in identifying the presence of irritating makeup residals in the connecting areas of the eye 5. The self-examination apparatus 1 can also be used to examine tattoos of the eyelid arQas or by those attempting to provide their own tattoo procedures on the surrounding area of the eye S.
.
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analysis of the eye and surrounding region~ of the face.
It ha~ been known in the prlor art to examine the eye and surrounding area by use of a mirror. However~ it has been found that the use of an ordinary mirror for such examination i~ not suitable for detailed investigation lnvolving the ~ye, particularly with respect to the use of contact lenses. For the per~on who U5Q5 a Lontact lens, it is n~cessary to appraise the accuracy of the positioning of the lens ov~r the cornea to visualize the pre~ence of absence of any air bubbles, dirt particles, eye lashes, QtC. ~ that may cau~e discomfort~
vi5ual ize the presence or absence of any fold~ or tears of the soft lens or any fractures or defects in a hard contact lens, ~nd ad3ust the position of th~ so-called bifocal contact lens~ which , ~
require6 th~t a specific portion of the lens be situated over the luwer par~ o~ ~he cornea at all tlmes~ Such actiYity requires a c;l~er e~aminatlon~ of the Qyeball than ha~ typ~ically been available through the use of~an ordinary mirror.
It has~beQn~known in the prior art to use a c~ncave lens for t~e entiro facial e~amination. Such lenses are typically :
131 16~7 found in th~ dressing areas and can b~ used for the application of cosmetics and for other ~ctivity requiring a somewhat more detailed vi~ual image of the facial r~gion than can be provided by use of a mirror. Typically, however. ~uch concave lenses have not b~en satisfactory to provide a det~iled examination of the specific area such as the area of the eye. In addition~ such lenses have typically been fairly large and therÆfore have not been suitably portable. ~l~o, th~ focal lengths of said lenses do not permit clo~e ~xamination of the eye.
It is therefore an object of the present invention to provide an optical 5y~tem that i~ ea~ily portablQ and which can be used to provide a detailed self-examination of the are~ of the eye or th~ ~urrounding facial regions. In addition, it i5 desirable to provide a self-examination instrument that does not rely on ambient light and yet can protect again~t inadvertent focussiny of direct sunlight to the eye or other parts of the face and body.
.
It is therefore an object of the present invention to provide apparatu~ and method for detailed examination of the eye and surrounding facial regions.
It i5 a more particular object of the present invention to provide an apparatus for detailed examination o~ the area of the eye that lncludes a lens sy~tem for close examination of the view aroa.
It 15 a more particular object of the prF~ent invention to ~ ' ii- ?,~
,' ~ ' 131 ~637 provide apparatu~ and method for detailed examination of the area of the face and the vicinity o~ the eye that provides a self-contained source of illumination.
It is yet another object of the present invention to provide an apparatus and method for detailed self-examination in the vicinity of the eye that can protect against inadvertent exposure to direct çunlight.
The aforementioned and other object6 of the present invention are accomplished, according to the present invention.
by providing a housing that holds a lens. The lens can be positioned by the user to provide a detailed image to the user of the area under examination. In addition. the holder ha~ a surface extending beyond the lens çurface whith minimi2ed the risk of reflection of direct sunlight into the eye. The holder also includefi a lamp and battery system along with a switch for activating and deactivating the lamp that provides illumination of the area under examination.
These and other features of the present invention will be understood upDn reading of the following descriptian along wlth the drawingsn In the accompanying drawings:
Figure 1 is a schematic representation of the use of a lens for d~tailed eKamlnation.
Figure 2 is a perspective view of the sel~-examination apparatus of the present invention.
~ Igure 3 is a cross-section view, taken along line 3-3 of : 3 . .
. st~, S.~
~ `
~ .
- ' ~ , . . .
.
Figure 29 of ~he apparatus according to the present invention for e~amination of the area of the eye.
Figure 4 is a front view of the apparatus for facial self-examination of the present invention.
Figure S is a view further 6howing the apparatus of the present invention in use.
Figure h is a perspective view showing a partial cutaway showing the ~lements of the pre~ent invention with a convex lens reflecting surface.
Figure 7 is a cross-section view, taken along line 7-7 of Figure 6, showing a convex lens reflecting surface arrangement of the present invention.
Referring first to Figure 1 and Figure 5, the basic optical configuratlon of the ~elf-examination apparatus of the present invention, generally referred to by reference number 1, is shown in use. Th~ eye 5 uses a lens system 10 that includes a reflecting concave surface 11 or any other type of re-Flecting surface 1~, such as conve~ surface 12 shown in Figures ~ and 7~
~y varying the position of the ~ye 5 and the lens system 10, a close visualization of the image of the eye 5 can be obtained.
It will be clear that the radius of curvature of the concave surface 11, for example, will determine the optimum viewing distance of the eye ~for self-examination of the eye. Other ref}ective convex lens surface 12~ or the like, may be used :
., ~ . .
:
~ . ' ' ,' ~: ~
131 16;~7 and having similar results as the above-discussed concave ~urface 11.
Referring next to Figure Z and Figure 69 there is shown, in perspective views, the self~examination apparatu~ 1 of the pr~sent invention~ including the optical syste~ and associated apparatus. The apparatus comprises a housing 20 that includes an outer surfac~ 2Z and switch Z1 positioned on the outer surface 22. The concave ¢urface 11, (see Figure 2)~ or other reflecting lens surface 12, (see Figure ~), i5 positioned such that a highly reflective inner wall 23 extends oeyond the lens ~ystem.
Figure 3 shows a cross-sectional view taken along the line indicated 3-3 in Figure 2, wherein lens syste~ 10 is shown as a concave reflective surface 11. Similarly, Figure 7 show~ a cross-sectional view taken along the line indicatQd 7-7 in Figure ~, wherein len6 ~ystem 10 is shown as a convex reflectivP lens surface 12. FigurQs ~ and 7 further showing wall portion 23 o~
housing 20 extending well beyond lens system 10. Shown als~ in Figures 3 and 7 i5 len~ system 10 mounted on a transparent ~ember 30 and having lightbulb 32 being located there behind lens system 10 in a highly reflective chamber 31. The interior of the housing behind the reflecting chamber 31 includes batteries 33 and associated electrical couplings 28 and sprinys 29 for mounting the batteries 33 and for coupling the batterie6 33 and thQ light bulb 32 with switch 21. Through switch 21, the light bulb 32 can be activated as needed.
Referring next to Figure 4, a front view of the self-;
;' examination apparatus 1 i5 shown. The outer surface of the . ~
: ~: ' , .:
.
.
housing i5 22, the inner surf~ce of th~ extended region of thehousing i~ ~hown ~5 23, while the lens system 10 and the transparent member ~0 are po6itioned in the interior of the e~tended portion 23. ~lso shown is switoh 21 for activating the light bulb 3Z.
The self-examination apparatus 1 is adapted to have a reflecting surf~ce 11, 12 of the lens system (preferably oonCavQ, although other reflecting shapes may be used a~ previously discussed) by which the eye 5 can seQ an exquisitely detailed version of itçelf by looking into the lens system 10. The apparatu~ 1 includeç a shield Z3 that pr~vents direct sunllght from inadvertently striking the reflecting surface 11, lZ and being reflected toward the region of the eye 5, possibly damaging the eye 5. In addition, th~ self-examination app~ratus 1 has an independent light source (e.g., lightbulb 32) so that in low levels of ambient light~ the u~er will not be viewing the image at a low level of illumlnation. The lightbulb 32 i5 adapted to provide light that exits from the surface 31 of the lamp chamber through the transparent member 30 and forwardly onto the region of the eye ~5 well as onto the extended wall portions 23. The extended wall portions 23 of the housing 20 are highly reflective 50 that a large percentage of the light i5 projected forward and into the region of the eye 5.
It wi~l be clear to those skllled in thæ art that the r~flective surface li. 12 is located on the outside of lens system 10 of th~ preferred embodiment. Howover~ said reflectivQ
b ' `; ` ` ' :
lSl 16~7 surface 11, 12 can be located elsewh~re in the lens system 10.
Q use of the self-e~amination apparatus 1 previously discussed9 is to assist people in adjusting contac~ lenses.
~ecause of the nature of thæ contact lens, as well ~s its small size, the present invention proVidQs an i~proved method fDr manipulation uf çaid cont~ct lens.
In addition, the self-examination apparatus 1 h~s further applic~tions tD ophthalmological and related activities in which a patient can be expected to pro~ide sel-f-examination. The apparatu~ 1 permits the user to see in detail the characteristics of the cornea and the conjutiva, the anterior chamber, the iris pupil, lens and surrounding tissue. ~lso various parts of the eyelids and as~ociated s~ructures can be examined. Examples of further uses can be visualization of the location of eye damage produced by a foreign ob3ect or examination of changes related to inflammatory or infectious diseases of the eyes and surrounding ti~sues and evolution and progression disQases of the lenses such as cataracts. In addition, many useful applications can be derived in identifying and monitoring changes related to therapeutic modalities as they affect the eye and the surrounding i55ue5. The changes produced by therapy including surgical therapy of various diseases and tumorous condition o~ the eyes can be monitored by the patient. Th~ device can be of as6istance for patient in seeing details of the results of plastic surgery ~and other changes in the vicinity of the eye such as reconstruc~ive pro~edures.
, The present invention also permits a close inspection of the : ~ 7 , .
:: . . : . . . - . -, -131 16:~7 eyelids and surrounding areas that can be use to insure the correct usage of makeup and similar modalities of said surrounding areas and to insurQ complete removal of makeup after cleaning or wa~hing of the area. Thusl the ~elf-examination apparatus 1 can be eçpecially important in identifying the presence of irritating makeup residals in the connecting areas of the eye 5. The self-examination apparatus 1 can also be used to examine tattoos of the eyelid arQas or by those attempting to provide their own tattoo procedures on the surrounding area of the eye S.
.
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.
. . .
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Claims (6)
1. An apparatus for self-examination of a user's eye and surrounding facial area, said apparatus comprising:
(a) a housing means for encasing said apparatus, said housing means having a hooded front portion provided with reflective inner walls;
(b) a lens means for reflecting images of said user's eye and surrounding facial area, said lens means being supported within said housing means, said hooded front portion extending beyond the location of said lens means and thereat shielding said user's eye and surrounding facial area from extraneous light when said apparatus is being used;
(c) a transparent member means for supporting said lens means within said housing means and for transmitting light through an area overlapping and surrounding said lens means;
(d) a light means for illuminating a user's eye and surrounding facial area;
(e) a reflecting chamber means for reflecting light forwardly from said light means, said light being reflected forwardly through said transparent member, partially onto said user's eye and surrounding facial area and partially onto said reflective inner walls of said hooded front portion and then onto said user's eye and surrounding facial area;
(f) a power source means for energizing said light means;
and (g) a switch means for powering on and off said light means, said switch means being mounted onto an exterior portion of said housing means.
(a) a housing means for encasing said apparatus, said housing means having a hooded front portion provided with reflective inner walls;
(b) a lens means for reflecting images of said user's eye and surrounding facial area, said lens means being supported within said housing means, said hooded front portion extending beyond the location of said lens means and thereat shielding said user's eye and surrounding facial area from extraneous light when said apparatus is being used;
(c) a transparent member means for supporting said lens means within said housing means and for transmitting light through an area overlapping and surrounding said lens means;
(d) a light means for illuminating a user's eye and surrounding facial area;
(e) a reflecting chamber means for reflecting light forwardly from said light means, said light being reflected forwardly through said transparent member, partially onto said user's eye and surrounding facial area and partially onto said reflective inner walls of said hooded front portion and then onto said user's eye and surrounding facial area;
(f) a power source means for energizing said light means;
and (g) a switch means for powering on and off said light means, said switch means being mounted onto an exterior portion of said housing means.
2. The apparatus for self-examination as in Claim 1 wherein said lens means has an anterior reflective surface which is substantially configured as concave.
3. The apparatus for self-examination as in Claim 1 wherein:
said lens means has a posterior reflective surface which is substantially configured as convex.
said lens means has a posterior reflective surface which is substantially configured as convex.
4. A method for self-examination of a user's eye and surrounding facial area, comprising the steps of:
(a) positioning a self-examining apparatus proximate said user's eye and surrounding facial area, said self-examining apparatus including a housing, said housing further including a light means for illuminating said user's eye and surrounding facial area, a light reflecting chamber, a transparent member means for transmitting light from said reflecting chamber, a lens means for reflecting images, and a hooded portion having reflective inner walls located frontally of said lens means;
(b) energizing said light means;
(c) illuminating said light reflecting chamber;
(d) transmitting light from said light reflecting chamber forwardly through said transparent member means, then onto said reflective inner walls of said hooded portion;
(e) illuminating said user's eye and surrounding facial area using said transmitted light on said reflective inner walls of said hooded portion;
(f) shielding extraneous light from said user's eye and surrounding facial area using said hooded portion;
(g) selecting an examination point on said user's eye and surrounding facial area;
(h) projecting images of said selected examination point onto said lens means;
(i) reflecting said projected images from said lens means;
and (j) viewing and examining said reflected images of said user's eye and surrounding facial area.
(a) positioning a self-examining apparatus proximate said user's eye and surrounding facial area, said self-examining apparatus including a housing, said housing further including a light means for illuminating said user's eye and surrounding facial area, a light reflecting chamber, a transparent member means for transmitting light from said reflecting chamber, a lens means for reflecting images, and a hooded portion having reflective inner walls located frontally of said lens means;
(b) energizing said light means;
(c) illuminating said light reflecting chamber;
(d) transmitting light from said light reflecting chamber forwardly through said transparent member means, then onto said reflective inner walls of said hooded portion;
(e) illuminating said user's eye and surrounding facial area using said transmitted light on said reflective inner walls of said hooded portion;
(f) shielding extraneous light from said user's eye and surrounding facial area using said hooded portion;
(g) selecting an examination point on said user's eye and surrounding facial area;
(h) projecting images of said selected examination point onto said lens means;
(i) reflecting said projected images from said lens means;
and (j) viewing and examining said reflected images of said user's eye and surrounding facial area.
5. The method for self-examination of a user's eye and surrounding facial area as in claim 4 wherein: said lens means has an anterior reflective surface which is substantially configured as concave.
6. The method for self-examination of a user's eye and surrounding facial areas as in Claim 4 wherein: said lens means has a posterior reflective surface which is substantially configured as convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000564426A CA1311637C (en) | 1988-04-18 | 1988-04-18 | Apparatus and method for self-examination of the eye and surrounding facial areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000564426A CA1311637C (en) | 1988-04-18 | 1988-04-18 | Apparatus and method for self-examination of the eye and surrounding facial areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1311637C true CA1311637C (en) | 1992-12-22 |
Family
ID=4137862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000564426A Expired - Lifetime CA1311637C (en) | 1988-04-18 | 1988-04-18 | Apparatus and method for self-examination of the eye and surrounding facial areas |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1311637C (en) |
-
1988
- 1988-04-18 CA CA000564426A patent/CA1311637C/en not_active Expired - Lifetime
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